Articles | Volume 20, issue 3
https://doi.org/10.5194/acp-20-1701-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-1701-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Feb 2020
Research article |
| 12 Feb 2020
| 12 Feb 2020
A transition of atmospheric emissions of particles and gases from on-road heavy-duty trucks
Liyuan Zhou
School of Energy and Environment, City University of Hong Kong,
Hong Kong, China
Åsa M. Hallquist
CORRESPONDING AUTHOR
IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Mattias Hallquist
Department of Chemistry and Molecular Biology, University of
Gothenburg, Gothenburg, Sweden
Christian M. Salvador
Department of Chemistry and Molecular Biology, University of
Gothenburg, Gothenburg, Sweden
Samuel M. Gaita
Department of Chemistry and Molecular Biology, University of
Gothenburg, Gothenburg, Sweden
Åke Sjödin
IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Martin Jerksjö
IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Håkan Salberg
IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Ingvar Wängberg
IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Johan Mellqvist
Earth and Space Sciences, Chalmers
University of Technology, Gothenburg, Sweden
Qianyun Liu
School of Energy and Environment, City University of Hong Kong,
Hong Kong, China
Berto P. Lee
School of Energy and Environment, City University of Hong Kong,
Hong Kong, China
School of Energy and Environment, City University of Hong Kong,
Hong Kong, China
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Yujue Wang, Min Hu, Yuchen Wang, Jing Zheng, Dongjie Shang, Yudong Yang, Ying Liu, Xiao Li, Rongzhi Tang, Wenfei Zhu, Zhuofei Du, Yusheng Wu, Song Guo, Zhijun Wu, Shengrong Lou, Mattias Hallquist, and Jian Zhen Yu
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Thomas J. Bannan, Michael Le Breton, Michael Priestley, Stephen D. Worrall, Asan Bacak, Nicholas A. Marsden, Archit Mehra, Julia Hammes, Mattias Hallquist, M. Rami Alfarra, Ulrich K. Krieger, Jonathan P. Reid, John Jayne, Wade Robinson, Gordon McFiggans, Hugh Coe, Carl J. Percival, and Dave Topping
Atmos. Meas. Tech., 12, 1429–1439, https://doi.org/10.5194/amt-12-1429-2019, https://doi.org/10.5194/amt-12-1429-2019, 2019
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Mingfu Cai, Haobo Tan, Chak K. Chan, Yiming Qin, Hanbing Xu, Fei Li, Misha I. Schurman, Li Liu, and Jun Zhao
Atmos. Chem. Phys., 18, 16419–16437, https://doi.org/10.5194/acp-18-16419-2018, https://doi.org/10.5194/acp-18-16419-2018, 2018
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Yi Ming Qin, Hao Bo Tan, Yong Jie Li, Zhu Jie Li, Misha I. Schurman, Li Liu, Cheng Wu, and Chak K. Chan
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We apply state-of-the-art chemical characterization to determine the chloride radical production in Beijing via measurement of inorganic halogens at a semi-rural site. The high concentration of inorganic halogens, namely nitryl chloride, enables the production of chlorinated volatile organic compounds which are measured in both the gas and particle phases simultaneously. This enables the secondary production of aerosols via chlorine oxidation to be directly observed in ambient air.
Yangxi Chu, Erin Evoy, Saeid Kamal, Young Chul Song, Jonathan P. Reid, Chak K. Chan, and Allan K. Bertram
Atmos. Meas. Tech., 11, 4809–4822, https://doi.org/10.5194/amt-11-4809-2018, https://doi.org/10.5194/amt-11-4809-2018, 2018
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The viscosity of erythritol, a tetrol found in aerosol particles, is highly uncertain. To help resolve this uncertainty, we measured the viscosities of
erythritol–water particles using rectangular-area fluorescence recovery after photobleaching and aerosol optical tweezers techniques. These results
should help improve the understanding of the viscosity of secondary organic aerosol particles. In addition, we present an intercomparison of techniques
for measuring the viscosity of particles.
Tengyu Liu, Zhaoyi Wang, Xinming Wang, and Chak K. Chan
Atmos. Chem. Phys., 18, 11363–11374, https://doi.org/10.5194/acp-18-11363-2018, https://doi.org/10.5194/acp-18-11363-2018, 2018
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POA and SOA from seven heated cooking oil emissions were investigated in a smog chamber. We found that PMF analysis separated POA and SOA better than the residual spectrum method and the traditional method, assuming first-order POA loss. The PMF factors mass spectra were compared with those of ambient PMF factors. Our results suggest that COA source analysis from ambient data is likely complicated by the cooking style and atmospheric oxidation conditions.
Yujue Wang, Min Hu, Song Guo, Yuchen Wang, Jing Zheng, Yudong Yang, Wenfei Zhu, Rongzhi Tang, Xiao Li, Ying Liu, Michael Le Breton, Zhuofei Du, Dongjie Shang, Yusheng Wu, Zhijun Wu, Yu Song, Shengrong Lou, Mattias Hallquist, and Jianzhen Yu
Atmos. Chem. Phys., 18, 10693–10713, https://doi.org/10.5194/acp-18-10693-2018, https://doi.org/10.5194/acp-18-10693-2018, 2018
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The overall characteristics and concentrations of organosulfates (OSs) and nitrooxy-OSs (NOSs) were determined in summer in Beijing. This study provided direct observational evidence that OSs form via acid-catalyzed aqueous-phase reactions in the presence of acidic sulfate aerosols, and monoterpene NOSs form via nighttime NO3 oxidation. Using OSs and NOSs as examples, this work highlights the formation pathways of SOA via anthropogenic–biogenic interactions and organic–inorganic reactions.
Michael Le Breton, Yujue Wang, Åsa M. Hallquist, Ravi Kant Pathak, Jing Zheng, Yudong Yang, Dongjie Shang, Marianne Glasius, Thomas J. Bannan, Qianyun Liu, Chak K. Chan, Carl J. Percival, Wenfei Zhu, Shengrong Lou, David Topping, Yuchen Wang, Jianzhen Yu, Keding Lu, Song Guo, Min Hu, and Mattias Hallquist
Atmos. Chem. Phys., 18, 10355–10371, https://doi.org/10.5194/acp-18-10355-2018, https://doi.org/10.5194/acp-18-10355-2018, 2018
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This paper utilizes a chemical ionisation mass spectrometer measuring gas and particle-phase organosulfates (OS) simultaneously during a field campaign in Beijing, China, and highlights how high time frequency online measurements enable a detailed analysis of dominant production mechanisms. We find that high aerosol acidity, organic precursor concentration and relative humidity promote the production of OS. The thermogram desorption reveals the potential for semi-volatile gas-phase OS.
Xiangyu Pei, Mattias Hallquist, Axel C. Eriksson, Joakim Pagels, Neil M. Donahue, Thomas Mentel, Birgitta Svenningsson, William Brune, and Ravi Kant Pathak
Atmos. Chem. Phys., 18, 9845–9860, https://doi.org/10.5194/acp-18-9845-2018, https://doi.org/10.5194/acp-18-9845-2018, 2018
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The findings in this study show that morphological transformation of soot occurs via two key complementary and sequential processes, i.e., void filling in the particle and its diameter growth. To quantify the state of morphological transformation, i.e., the utilization of material for filling and growth during the condensation processes, a framework was developed which can further be utilized to quantify the effect of condensed material on the optical and hygroscopic properties of soot.
Haichao Wang, Keding Lu, Song Guo, Zhijun Wu, Dongjie Shang, Zhaofeng Tan, Yujue Wang, Michael Le Breton, Shengrong Lou, Mingjin Tang, Yusheng Wu, Wenfei Zhu, Jing Zheng, Limin Zeng, Mattias Hallquist, Min Hu, and Yuanhang Zhang
Atmos. Chem. Phys., 18, 9705–9721, https://doi.org/10.5194/acp-18-9705-2018, https://doi.org/10.5194/acp-18-9705-2018, 2018
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N2O5, ClNO2, and particulate nitrate were measured simultaneously in Beijing, China, in 2016. The elevated N2O5 uptake coefficient and ClNO2 yield were determined, which suggest fast N2O5 uptake in Beijing. We highlight that the NO3 oxidation in nocturnal VOC degradation is efficient, with fast formation of organic nitrates. More studies are needed to investigate NO3–N2O5 chemistry and its contribution to secondary organic aerosol formation.
Chunlei Cheng, Zuzhao Huang, Chak K. Chan, Yangxi Chu, Mei Li, Tao Zhang, Yubo Ou, Duohong Chen, Peng Cheng, Lei Li, Wei Gao, Zhengxu Huang, Bo Huang, Zhong Fu, and Zhen Zhou
Atmos. Chem. Phys., 18, 9147–9159, https://doi.org/10.5194/acp-18-9147-2018, https://doi.org/10.5194/acp-18-9147-2018, 2018
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Particulate amines play an important role for the particle acidity and hygroscopicity. We found amines were internally mixed with sulfate and nitrate at a rural site in the PRD, China, suggesting the formation of aminium sulfate and nitrate salts. The ammonium-poor state of amine particles in summer was associated with the low emission sources of ammonia and a possible contribution of ammonium–amine exchange reactions. Amines could be a buffer for the particle acidity of ammonium-poor particles.
Tengyu Liu, Dan Dan Huang, Zijun Li, Qianyun Liu, ManNin Chan, and Chak K. Chan
Atmos. Chem. Phys., 18, 5677–5689, https://doi.org/10.5194/acp-18-5677-2018, https://doi.org/10.5194/acp-18-5677-2018, 2018
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The formation of SOA from toluene on initially dry and wet AS seeds was compared using an OFR at an RH of 68 %. We found that, as OH exposure increased, the SOA yield and ALW of the initially dry seeds approached those of the initially wet seeds while the wet seeds yielded SOA of a higher degree of oxidation at all exposure levels. Our results suggest that AS dry seeds soon at least partially deliquesce during SOA formation; more studies on the interplay of SOA formation and ALW are warranted.
Cameron Faxon, Julia Hammes, Michael Le Breton, Ravi Kant Pathak, and Mattias Hallquist
Atmos. Chem. Phys., 18, 5467–5481, https://doi.org/10.5194/acp-18-5467-2018, https://doi.org/10.5194/acp-18-5467-2018, 2018
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Nighttime oxidation of organic compounds emitted from vegetation produce aerosol particles affecting climate and human health. Here we apply state-of the-art chemical characterization for a detailed study on the oxidation of limonene initiated by the nitrate radical. We now have the identity of major nitrated products and their thermal properties. Including a cluster analysis, through this study, new knowledge supporting modeling and field observations of organic nitrates is gained.
Rongzhi Tang, Zepeng Wu, Xiao Li, Yujue Wang, Dongjie Shang, Yao Xiao, Mengren Li, Limin Zeng, Zhijun Wu, Mattias Hallquist, Min Hu, and Song Guo
Atmos. Chem. Phys., 18, 4055–4068, https://doi.org/10.5194/acp-18-4055-2018, https://doi.org/10.5194/acp-18-4055-2018, 2018
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We used CMB and the tracer yield method to apportion organic sources in Beijing. Vehicular emissions served as the dominant source, and the contributions of all the other primary sources decreased. One interesting result is that in contrast to the SOA from other regions in the world where biogenic SOA was dominant, anthropogenic SOA was the major contributor to SOA, implying that deducting anthropogenic VOC emissions is an efficient way to reduce SOA in Beijing.
Berto Paul Lee, Peter Kwok Keung Louie, Connie Luk, and Chak Keung Chan
Atmos. Chem. Phys., 17, 15121–15135, https://doi.org/10.5194/acp-17-15121-2017, https://doi.org/10.5194/acp-17-15121-2017, 2017
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Road traffic is an important source of air pollution. This study investigates the relationship between traffic-related airborne carbonaceous particles and the composition of traffic to reveal how emissions from different vehicle types affect ambient air quality. On average, LPG vehicles showed very small contributions, while gasoline- and diesel-powered vehicles emitted similar total amounts of carbon-containing particles but with differences in chemical composition.
Masao Gen and Chak K. Chan
Atmos. Chem. Phys., 17, 14025–14037, https://doi.org/10.5194/acp-17-14025-2017, https://doi.org/10.5194/acp-17-14025-2017, 2017
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We propose electrospray-surface enhanced Raman spectroscopy (ES-SERS) for measuring the surface chemical compositions of atmospherically relevant particles. The observations of surface aqueous sulfate and adsorbed water demonstrate a possible role of the water in facilitating the dissolution of sulfate from the bulk phase into its water layers. ES-SERS of submicron ambient aerosol particles collected in Hong Kong indicated an enrichment of sulfate and organic matter on the particle surface.
Berto Paul Lee, Hao Wang, and Chak Keung Chan
Atmos. Chem. Phys., 17, 13605–13624, https://doi.org/10.5194/acp-17-13605-2017, https://doi.org/10.5194/acp-17-13605-2017, 2017
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The size of atmospheric particles is an important physical property that determines environmental and health effects. We measured the size and chemical composition of particles in two locations in Hong Kong impacted by different predominant sources of particulate air pollutants to characterize how particle size and particle composition vary over different time frames, from changes within a day to long-term changes over weeks, and which processes and sources may have played important roles.
Yi Ming Qin, Hao Bo Tan, Yong Jie Li, Misha I. Schurman, Fei Li, Francesco Canonaco, André S. H. Prévôt, and Chak K. Chan
Atmos. Chem. Phys., 17, 10245–10258, https://doi.org/10.5194/acp-17-10245-2017, https://doi.org/10.5194/acp-17-10245-2017, 2017
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Freshly emitted HOA contributed significantly to the high concentrations of organics at night as heavy-duty vehicles enter downtown Guangzhou, while SOA contributed to the daytime high concentration. The large input of NOx, from automobile emissions, resulted in the significant formation of nitrate in both daytime and nighttime. Mitigating the PM pollution in urbanized areas such as Guangzhou can potentially benefit their peripheral cities, by reductions in traffic-related pollutants.
Chunlei Cheng, Mei Li, Chak K. Chan, Haijie Tong, Changhong Chen, Duohong Chen, Dui Wu, Lei Li, Cheng Wu, Peng Cheng, Wei Gao, Zhengxu Huang, Xue Li, Zhijuan Zhang, Zhong Fu, Yanru Bi, and Zhen Zhou
Atmos. Chem. Phys., 17, 9519–9533, https://doi.org/10.5194/acp-17-9519-2017, https://doi.org/10.5194/acp-17-9519-2017, 2017
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Oxalic acid is an abundant and ubiquitous constituent in secondary organic aerosol (SOA) and can be an effective tracer for the oxidative processes leading to the formation of SOA. In this work photochemical reactions have a significant contribution to oxalic acid formation in summer, while in winter the formation of oxalic acid is closely associated with the oxidation of organic precursors in the aqueous phase.
James W. Grayson, Erin Evoy, Mijung Song, Yangxi Chu, Adrian Maclean, Allena Nguyen, Mary Alice Upshur, Marzieh Ebrahimi, Chak K. Chan, Franz M. Geiger, Regan J. Thomson, and Allan K. Bertram
Atmos. Chem. Phys., 17, 8509–8524, https://doi.org/10.5194/acp-17-8509-2017, https://doi.org/10.5194/acp-17-8509-2017, 2017
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The viscosities of four polyols and three saccharides mixed with water were determined. The results from the polyol studies suggest viscosity increases by 1–2 orders of magnitude with the addition of an OH functional group to a carbon backbone. The results from the saccharide studies suggest that the viscosity of highly oxidized compounds is strongly dependent on molar mass and oligomerization of highly oxidized compounds in atmospheric SOM could lead to large increases in viscosity.
Tengyu Liu, Zijun Li, ManNin Chan, and Chak K. Chan
Atmos. Chem. Phys., 17, 7333–7344, https://doi.org/10.5194/acp-17-7333-2017, https://doi.org/10.5194/acp-17-7333-2017, 2017
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Formation of SOA from gas-phase emissions of five heated vegetable oils was investigated in a PAM chamber for the first time. The major SOA precursors from heated cooking oils were related to the content of monounsaturated fat and omega-6 fatty acids in cooking oils. The average production rate of SOA was 3 orders of magnitude lower compared with emission rates of PM2.5 from heated cooking oils. In these experiments, SOA was lightly oxidized.
Meike Sauerwein and Chak Keung Chan
Atmos. Chem. Phys., 17, 6323–6339, https://doi.org/10.5194/acp-17-6323-2017, https://doi.org/10.5194/acp-17-6323-2017, 2017
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Heterogeneous uptake is one of the mechanisms influencing the amounts of alkylamines and ammonia in atmospheric particles. The present study investigates the simultaneous uptake of dimethylamine and ammonia at different gas molar ratios into sulfuric and oxalic acid particles at low and high relative humidity. Results showed that the particulate dimethylaminium/ammonium molar ratios changed substantially during the uptake process, depending on the extent of neutralisation and phase state.
Oleg Travnikov, Hélène Angot, Paulo Artaxo, Mariantonia Bencardino, Johannes Bieser, Francesco D'Amore, Ashu Dastoor, Francesco De Simone, María del Carmen Diéguez, Aurélien Dommergue, Ralf Ebinghaus, Xin Bin Feng, Christian N. Gencarelli, Ian M. Hedgecock, Olivier Magand, Lynwill Martin, Volker Matthias, Nikolay Mashyanov, Nicola Pirrone, Ramesh Ramachandran, Katie Alana Read, Andrei Ryjkov, Noelle E. Selin, Fabrizio Sena, Shaojie Song, Francesca Sprovieri, Dennis Wip, Ingvar Wängberg, and Xin Yang
Atmos. Chem. Phys., 17, 5271–5295, https://doi.org/10.5194/acp-17-5271-2017, https://doi.org/10.5194/acp-17-5271-2017, 2017
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The study provides a complex analysis of processes governing Hg fate in the atmosphere involving both measurement data and simulation results of chemical transport models. Evaluation of the model simulations and numerical experiments against observations allows explaining spatial and temporal variations of Hg concentration in the near-surface atmospheric layer and shows possibility of multiple pathways of Hg oxidation occurring concurrently in various parts of the atmosphere.
Francesca Sprovieri, Nicola Pirrone, Mariantonia Bencardino, Francesco D'Amore, Helene Angot, Carlo Barbante, Ernst-Günther Brunke, Flor Arcega-Cabrera, Warren Cairns, Sara Comero, María del Carmen Diéguez, Aurélien Dommergue, Ralf Ebinghaus, Xin Bin Feng, Xuewu Fu, Patricia Elizabeth Garcia, Bernd Manfred Gawlik, Ulla Hageström, Katarina Hansson, Milena Horvat, Jože Kotnik, Casper Labuschagne, Olivier Magand, Lynwill Martin, Nikolay Mashyanov, Thumeka Mkololo, John Munthe, Vladimir Obolkin, Martha Ramirez Islas, Fabrizio Sena, Vernon Somerset, Pia Spandow, Massimiliano Vardè, Chavon Walters, Ingvar Wängberg, Andreas Weigelt, Xu Yang, and Hui Zhang
Atmos. Chem. Phys., 17, 2689–2708, https://doi.org/10.5194/acp-17-2689-2017, https://doi.org/10.5194/acp-17-2689-2017, 2017
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The results on total mercury (THg) wet deposition flux obtained within the GMOS network have been presented and discussed to understand the atmospheric Hg cycling and its seasonal depositional patterns over the 2011–2015 period. The data set provides new insight into baseline concentrations of THg concentrations in precipitation particularly in regions where wet deposition and atmospheric Hg species were not investigated before, opening the way for additional measurements and modeling studies.
Francesco De Simone, Paulo Artaxo, Mariantonia Bencardino, Sergio Cinnirella, Francesco Carbone, Francesco D'Amore, Aurélien Dommergue, Xin Bin Feng, Christian N. Gencarelli, Ian M. Hedgecock, Matthew S. Landis, Francesca Sprovieri, Noriuki Suzuki, Ingvar Wängberg, and Nicola Pirrone
Atmos. Chem. Phys., 17, 1881–1899, https://doi.org/10.5194/acp-17-1881-2017, https://doi.org/10.5194/acp-17-1881-2017, 2017
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Biomass burning (BB) releases of Hg, usually considered to be Hg(0), are a significant global source of atmospheric Hg. However there is experimental evidence that a fraction of this Hg is bound to particulate matter, Hg(P). This modelling study shows how increasing fractions of Hg(P) reduce the availability of Hg to the global pool, raising Hg exposure for those regions characterized by high BB, with implications for the sub-Arctic and also rice-growing areas in South-East Asia.
Yi Ming Qin, Yong Jie Li, Hao Wang, Berto Paul Yok Long Lee, Dan Dan Huang, and Chak Keung Chan
Atmos. Chem. Phys., 16, 14131–14145, https://doi.org/10.5194/acp-16-14131-2016, https://doi.org/10.5194/acp-16-14131-2016, 2016
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The source, formation, transformation mechanisms and mixing state of particulate matter (PM) in high episodic events under different meteorological conditions in Hong Kong remain unclear. With high-resolution time-of-flight aerosol mass spectrometric measurement, we successfully demonstrated the dynamic and complex nature of PM transformation during high-PM episodes. This study revealed that not only regional transport but also local secondary formation is the culprit for high PM levels.
Ingvar Wängberg, Michelle G. Nerentorp Mastromonaco, John Munthe, and Katarina Gårdfeldt
Atmos. Chem. Phys., 16, 13379–13387, https://doi.org/10.5194/acp-16-13379-2016, https://doi.org/10.5194/acp-16-13379-2016, 2016
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Within the EU-funded project, Global Mercury Observation System (GMOS) airborne mercury has been monitored at the background Råö measurement site on the western coast of Sweden from May 2012 to the end of May 2015, the following mercury species/fractions were measured: gaseous elemental mercury (GEM), particulate bound mercury (PBM) and gaseous oxidised mercury (GOM). Evidence that a significant part of the GOM measured at the Råö site has been formed in the free tropospheric air is presented.
Francesca Sprovieri, Nicola Pirrone, Mariantonia Bencardino, Francesco D'Amore, Francesco Carbone, Sergio Cinnirella, Valentino Mannarino, Matthew Landis, Ralf Ebinghaus, Andreas Weigelt, Ernst-Günther Brunke, Casper Labuschagne, Lynwill Martin, John Munthe, Ingvar Wängberg, Paulo Artaxo, Fernando Morais, Henrique de Melo Jorge Barbosa, Joel Brito, Warren Cairns, Carlo Barbante, María del Carmen Diéguez, Patricia Elizabeth Garcia, Aurélien Dommergue, Helene Angot, Olivier Magand, Henrik Skov, Milena Horvat, Jože Kotnik, Katie Alana Read, Luis Mendes Neves, Bernd Manfred Gawlik, Fabrizio Sena, Nikolay Mashyanov, Vladimir Obolkin, Dennis Wip, Xin Bin Feng, Hui Zhang, Xuewu Fu, Ramesh Ramachandran, Daniel Cossa, Joël Knoery, Nicolas Marusczak, Michelle Nerentorp, and Claus Norstrom
Atmos. Chem. Phys., 16, 11915–11935, https://doi.org/10.5194/acp-16-11915-2016, https://doi.org/10.5194/acp-16-11915-2016, 2016
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This work presents atmospheric Hg concentrations recorded within the GMOS global network analyzing Hg measurement results in terms of temporal trends, seasonality and comparability within the network. The over-arching benefit of this coordinated Hg monitoring network would clearly be the production of high-quality measurement datasets on a global scale useful in developing and validating models on different spatial and temporal scales.
Heidi H. Y. Cheung, Haobo Tan, Hanbing Xu, Fei Li, Cheng Wu, Jian Z. Yu, and Chak K. Chan
Atmos. Chem. Phys., 16, 8431–8446, https://doi.org/10.5194/acp-16-8431-2016, https://doi.org/10.5194/acp-16-8431-2016, 2016
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We present simultaneous measurements of aerosol volatility and carbonaceous matters in Guangzhou, China, in Feb and Mar 2014 using a VTDMA and OC / EC analyzer. Low volatility particles with no significant evaporation at 300° C in the VTDMA contributed 5–15 % of number concentrations of the 40–300 nm particles. Mass closure suggests that non-volatile organic carbon, in addition to elemental carbon, was one of the components of the non-volatile residuals measured by the VTDMA in this study.
Ingvar Wängberg, Ulla Hageström, Jonas Sommar, and Martin Ferm
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2016-528, https://doi.org/10.5194/acp-2016-528, 2016
Preprint withdrawn
Andrea Ghirardo, Junfei Xie, Xunhua Zheng, Yuesi Wang, Rüdiger Grote, Katja Block, Jürgen Wildt, Thomas Mentel, Astrid Kiendler-Scharr, Mattias Hallquist, Klaus Butterbach-Bahl, and Jörg-Peter Schnitzler
Atmos. Chem. Phys., 16, 2901–2920, https://doi.org/10.5194/acp-16-2901-2016, https://doi.org/10.5194/acp-16-2901-2016, 2016
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Trees can impact urban air quality. Large emissions of plant volatiles are emitted in Beijing as a stress response to the urban polluted environment, but their impacts on secondary particulate matter remain relatively low compared to those originated from anthropogenic activities. The present study highlights the importance of including stress-induced compounds when studying plant volatile emissions.
C. Sun, B. P. Lee, D. Huang, Y. Jie Li, M. I. Schurman, P. K. K. Louie, C. Luk, and C. K. Chan
Atmos. Chem. Phys., 16, 1713–1728, https://doi.org/10.5194/acp-16-1713-2016, https://doi.org/10.5194/acp-16-1713-2016, 2016
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This study presents results of long-term submicron aerosol measurements in Hong Kong. The presented work covers fall and winter 2013. It serves to characterize aerosol in a densely built-up urban area of a typical Asian megacity with strong primary emission sources from vehicles and cooking and presents an in-depth analysis of distinct clean and heavily polluted time periods tied with meteorological data and other gas-phase species observed in the study period.
D. F. Zhao, A. Buchholz, B. Kortner, P. Schlag, F. Rubach, H. Fuchs, A. Kiendler-Scharr, R. Tillmann, A. Wahner, Å. K. Watne, M. Hallquist, J. M. Flores, Y. Rudich, K. Kristensen, A. M. K. Hansen, M. Glasius, I. Kourtchev, M. Kalberer, and Th. F. Mentel
Atmos. Chem. Phys., 16, 1105–1121, https://doi.org/10.5194/acp-16-1105-2016, https://doi.org/10.5194/acp-16-1105-2016, 2016
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This study investigated the cloud droplet activation behavior and hygroscopic growth of mixed anthropogenic and biogenic SOA (ABSOA) compared to pure biogenic SOA (BSOA) and pure anthropogenic SOA (ASOA). Cloud droplet activation behaviors of different types of SOA were similar. In contrast, the hygroscopicity of ASOA was higher than BSOA and ABSOA. ASOA components enhanced the hygroscopicity of the ABSOA. Yet this enhancement cannot be described by a linear mixing of pure SOA systems.
Y. J. Li, B. P. Lee, L. Su, J. C. H. Fung, and C.K. Chan
Atmos. Chem. Phys., 15, 37–53, https://doi.org/10.5194/acp-15-37-2015, https://doi.org/10.5194/acp-15-37-2015, 2015
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(1) NR-PM1 at the HKUST Supersite was highly aged, with a high sulfate content and highly oxygenated organics.
(2) Seasonal variation in NR-PM1 concentration was not obvious, but the relative fractions of different species showed strong seasonal dependence.
(3) Both NR-PM1 concentrations and the relative fractions showed a strong dependence on air mass origin.
(4) Both locally produced and regionally transported organic aerosols contribute to the organic content of PM at this site.
J. W. Meng, M. C. Yeung, Y. J. Li, B. Y. L. Lee, and C. K. Chan
Atmos. Chem. Phys., 14, 10267–10282, https://doi.org/10.5194/acp-14-10267-2014, https://doi.org/10.5194/acp-14-10267-2014, 2014
S. M. Gaita, J. Boman, M. J. Gatari, J. B. C. Pettersson, and S. Janhäll
Atmos. Chem. Phys., 14, 9977–9991, https://doi.org/10.5194/acp-14-9977-2014, https://doi.org/10.5194/acp-14-9977-2014, 2014
Y. J. Li, D. D. Huang, H. Y. Cheung, A. K. Y. Lee, and C. K. Chan
Atmos. Chem. Phys., 14, 2871–2885, https://doi.org/10.5194/acp-14-2871-2014, https://doi.org/10.5194/acp-14-2871-2014, 2014
Y. J. Li, B. Y. L. Lee, J. Z. Yu, N. L. Ng, and C. K. Chan
Atmos. Chem. Phys., 13, 8739–8753, https://doi.org/10.5194/acp-13-8739-2013, https://doi.org/10.5194/acp-13-8739-2013, 2013
Å. M. Hallquist, M. Jerksjö, H. Fallgren, J. Westerlund, and Å. Sjödin
Atmos. Chem. Phys., 13, 5337–5350, https://doi.org/10.5194/acp-13-5337-2013, https://doi.org/10.5194/acp-13-5337-2013, 2013
Related subject area
Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
The radiative impact of biomass burning aerosols on dust emissions over Namibia and the long-range transport of smoke observed during the Aerosols, Radiation and Clouds in southern Africa (AEROCLO-sA) campaign
Extending the wind profile beyond the surface layer by combining physical and machine learning approaches
Amazonian aerosol size distributions in a lognormal phase space: characteristics and trajectories
Measurement report: Hygroscopicity of size-selected aerosol particles in the heavily polluted urban atmosphere of Delhi: impacts of chloride aerosol
An observation-constrained estimation of brown carbon aerosol direct radiative effects
The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): comparison between online and offline methods in ambient air
Optical properties and simple forcing efficiency of the organic aerosols and black carbon emitted by residential wood burning in rural central Europe
Particle phase state and aerosol liquid water greatly impact secondary aerosol formation: insights into phase transition and its role in haze events
Measurement report: Nocturnal subsidence behind the cold front enhances surface particulate matter in plains regions: observations from the mobile multi-lidar system
Increase in precipitation scavenging contributes to long-term reductions of light-absorbing aerosol in the Arctic
Sea spray emissions from the Baltic Sea: comparison of aerosol eddy covariance fluxes and chamber-simulated sea spray emissions
Attribution of aerosol particle number size distributions to major sources using a 11-year-long urban dataset
Higher absorption enhancement of black carbon in summer shown by 2-year measurements at the high-altitude mountain site of Pic du Midi Observatory in the French Pyrenees
Variations of the atmospheric polycyclic aromatic hydrocarbon concentrations, sources, and health risk and the direct medical costs of lung cancer around the Bohai Sea against a background of pollution prevention and control in China
Introducing the novel concept of cumulative concentration roses for studying the transport of ultrafine particles from an airport to adjacent residential areas
Significant spatial gradients in new particle formation frequency in Greece during summer
Impact of desert dust on new particle formation events and the cloud condensation nuclei budget in dust-influenced areas
Active thermokarst regions contain rich sources of ice-nucleating particles
Examining the vertical heterogeneity of aerosols over the Southern Great Plains
Drivers controlling black carbon temporal variability in the lower troposphere of the European Arctic
Efficient droplet activation of ambient black carbon particles in sub-urban environment
Opinion: The strength of long-term comprehensive observations to meet multiple grand challenges in different environments and in the atmosphere
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals
Measurement report: Size-resolved mass concentration of equivalent black carbon-containing particles larger than 700 nm and their role in radiation
Aerosol absorption using in situ filter-based photometers and ground-based sun photometry in the Po Valley urban atmosphere
Aerosol and dynamical contributions to cloud droplet formation in Arctic low-level clouds
Aircraft ice-nucleating particle and aerosol composition measurements in the western North American Arctic
Mechanisms controlling giant sea salt aerosol size distributions along a tropical orographic coastline
New particle formation leads to enhanced cloud condensation nuclei concentrations on the Antarctic Peninsula
Mixing state and effective density of aerosol particles during the Beijing 2022 Olympic Winter Games
Tropospheric sulfate from Cumbre Vieja volcano at Las Palmas, transported towards Cabo Verde – lidar measurements of aerosol extinction, backscatter and depolarization at 355, 532 and 1064 nm
Measurement report: Shipborne observations of black carbon aerosols in the western Arctic Ocean during summer and autumn 2016–2020: boreal fire impacts
Quantified effect of seawater biogeochemistry on the temperature dependence of sea spray aerosol fluxes
Annual cycle of aerosol properties over the central Arctic during MOSAiC 2019–2020 – light-extinction, CCN, and INP levels from the boundary layer to the tropopause
3D assimilation and radiative impact assessment of aerosol black carbon over the Indian region using aircraft, balloon, ground-based, and multi-satellite observations
Measurement Report: A comparison of ice-nucleating particle and cloud condensation nuclei sources and properties during autumn at contrasting marine and terrestrial locations
Evaluation of aerosol- and gas-phase tracers for identification of transported biomass burning emissions in an industrially influenced location in Texas, USA
Physicochemical characterization and source apportionment of Arctic ice-nucleating particles observed in Ny-Ålesund in autumn 2019
Cyclones enhance the transport of sea spray aerosols to the high atmosphere in the Southern Ocean
Impact of 2020 COVID-19 lockdowns on particulate air pollution across Europe
New particle formation in the tropical free troposphere during CAMP2Ex: statistics and impact of emission sources, convective activity, and synoptic conditions
Explaining apparent particle shrinkage related to new particle formation events in western Saudi Arabia does not require evaporation
Investigation of the effects of the Greek extreme wildfires of August 2021 on air quality and spectral solar irradiance
Characterization of dust-related new particle formation events based on long-term measurement in the North China Plain
Airborne investigation of black carbon interaction with low-level, persistent, mixed-phase clouds in the Arctic summer
The variation in the particle number size distribution during the rainfall: wet scavenging and air mass changing
Opinion: New directions in atmospheric research offered by research infrastructures combined with open and data-intensive science
Characterization of size-segregated particles' turbulent flux and deposition velocity by eddy correlation method at an Arctic site
Vertical distribution of black carbon and its mixing state in the urban boundary layer in summer
Insights into the size-resolved dust emission from field measurements in the Moroccan Sahara
Cyrille Flamant, Jean-Pierre Chaboureau, Marco Gaetani, Kerstin Schepanski, and Paola Formenti
Atmos. Chem. Phys., 24, 4265–4288, https://doi.org/10.5194/acp-24-4265-2024, https://doi.org/10.5194/acp-24-4265-2024, 2024
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In the austral dry season, the atmospheric composition over southern Africa is dominated by biomass burning aerosols and terrigenous aerosols (so-called mineral dust). This study suggests that the radiative effect of biomass burning aerosols needs to be taken into account to properly forecast dust emissions in Namibia.
Boming Liu, Xin Ma, Jianping Guo, Renqiang Wen, Hui Li, Shikuan Jin, Yingying Ma, Xiaoran Guo, and Wei Gong
Atmos. Chem. Phys., 24, 4047–4063, https://doi.org/10.5194/acp-24-4047-2024, https://doi.org/10.5194/acp-24-4047-2024, 2024
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Accurate wind profile estimation, especially for the lowest few hundred meters of the atmosphere, is of great significance for the weather, climate, and renewable energy sector. We propose a novel method that combines the power-law method with the random forest algorithm to extend wind profiles beyond the surface layer. Compared with the traditional algorithm, this method has better stability and spatial applicability and can be used to obtain the wind profiles on different land cover types.
Gabriela R. Unfer, Luiz A. T. Machado, Paulo Artaxo, Marco A. Franco, Leslie A. Kremper, Mira L. Pöhlker, Ulrich Pöschl, and Christopher Pöhlker
Atmos. Chem. Phys., 24, 3869–3882, https://doi.org/10.5194/acp-24-3869-2024, https://doi.org/10.5194/acp-24-3869-2024, 2024
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Amazonian aerosols and their interactions with precipitation were studied by understanding them in a 3D space based on three parameters that characterize the concentration and size distribution of aerosols. The results showed characteristic arrangements regarding seasonal and diurnal cycles, as well as when interacting with precipitation. The use of this 3D space appears to be a promising tool for aerosol population analysis and for model validation and parameterization.
Anil Kumar Mandariya, Ajit Ahlawat, Mohammed Haneef, Nisar Ali Baig, Kanan Patel, Joshua Apte, Lea Hildebrandt Ruiz, Alfred Wiedensohler, and Gazala Habib
Atmos. Chem. Phys., 24, 3627–3647, https://doi.org/10.5194/acp-24-3627-2024, https://doi.org/10.5194/acp-24-3627-2024, 2024
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The current study explores the temporal variation of size-selected particle hygroscopicity in Delhi for the first time. Here, we report that the high volume fraction contribution of ammonium chloride to aerosol governs the high aerosol hygroscopicity and associated liquid water content based on the experimental data. The episodically high ammonium chloride present in Delhi's atmosphere could lead to haze and fog formation under high relative humidity in the region.
Yueyue Cheng, Chao Liu, Jiandong Wang, Jiaping Wang, Zhouyang Zhang, Li Chen, Dafeng Ge, Caijun Zhu, Jinbo Wang, and Aijun Ding
Atmos. Chem. Phys., 24, 3065–3078, https://doi.org/10.5194/acp-24-3065-2024, https://doi.org/10.5194/acp-24-3065-2024, 2024
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Brown carbon (BrC), a light-absorbing aerosol, plays a pivotal role in influencing global climate. However, assessing BrC radiative effects remains challenging because the required observational data are hardly accessible. Here we develop a new BrC radiative effect estimation method combining conventional observations and numerical models. Our findings reveal that BrC absorbs up to a third of the sunlight at 370 nm that black carbon does, highlighting its importance in aerosol radiative effects.
Larissa Lacher, Michael P. Adams, Kevin Barry, Barbara Bertozzi, Heinz Bingemer, Cristian Boffo, Yannick Bras, Nicole Büttner, Dimitri Castarede, Daniel J. Cziczo, Paul J. DeMott, Romy Fösig, Megan Goodell, Kristina Höhler, Thomas C. J. Hill, Conrad Jentzsch, Luis A. Ladino, Ezra J. T. Levin, Stephan Mertes, Ottmar Möhler, Kathryn A. Moore, Benjamin J. Murray, Jens Nadolny, Tatjana Pfeuffer, David Picard, Carolina Ramírez-Romero, Mickael Ribeiro, Sarah Richter, Jann Schrod, Karine Sellegri, Frank Stratmann, Benjamin E. Swanson, Erik S. Thomson, Heike Wex, Martin J. Wolf, and Evelyn Freney
Atmos. Chem. Phys., 24, 2651–2678, https://doi.org/10.5194/acp-24-2651-2024, https://doi.org/10.5194/acp-24-2651-2024, 2024
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Aerosol particles that trigger ice formation in clouds are important for the climate system but are very rare in the atmosphere, challenging measurement techniques. Here we compare three cloud chambers and seven methods for collecting aerosol particles on filters for offline analysis at a mountaintop station. A general good agreement of the methods was found when sampling aerosol particles behind a whole air inlet, supporting their use for obtaining data that can be implemented in models.
Andrea Cuesta-Mosquera, Kristina Glojek, Griša Močnik, Luka Drinovec, Asta Gregorič, Martin Rigler, Matej Ogrin, Baseerat Romshoo, Kay Weinhold, Maik Merkel, Dominik van Pinxteren, Hartmut Herrmann, Alfred Wiedensohler, Mira Pöhlker, and Thomas Müller
Atmos. Chem. Phys., 24, 2583–2605, https://doi.org/10.5194/acp-24-2583-2024, https://doi.org/10.5194/acp-24-2583-2024, 2024
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This study evaluated the air pollution and climate impacts of residential-wood-burning particle emissions from a rural European site. The authors investigate the optical and physical properties that connect the aerosol emissions with climate by evaluating atmospheric radiative impacts via simple-forcing calculations. The study contributes to reducing the lack of information on the understanding of the optical properties of air pollution from anthropogenic sources.
Xiangxinyue Meng, Zhijun Wu, Jingchuan Chen, Yanting Qiu, Taomou Zong, Mijung Song, Jiyi Lee, and Min Hu
Atmos. Chem. Phys., 24, 2399–2414, https://doi.org/10.5194/acp-24-2399-2024, https://doi.org/10.5194/acp-24-2399-2024, 2024
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Our study revealed that particles predominantly exist in a semi-solid or solid state during clean winter days with RH below 30 %. However, a non-liquid to a liquid phase transition occurred when the aerosol liquid water (ALW) mass fraction surpassed 15 % (dry mass) at transition RH thresholds ranging from 40 % to 60 %. We also provide insights into the increasingly important roles of particle phase state variation and ALW in secondary particulate growth during haze formation in Beijing, China.
Yiming Wang, Haolin Wang, Yujie Qin, Xinqi Xu, Guowen He, Nanxi Liu, Shengjie Miao, Xiao Lu, Haichao Wang, and Shaojia Fan
Atmos. Chem. Phys., 24, 2267–2285, https://doi.org/10.5194/acp-24-2267-2024, https://doi.org/10.5194/acp-24-2267-2024, 2024
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We conducted a vertical measurement of winter PM2.5 using a mobile multi-lidar system in four cities. Combined with the surface PM2.5 data, the ERA5 reanalysis data, and GEOS-Chem simulations during Dec 2018–Feb 2019, we found that transport nocturnal PM2.5 enhancement by subsidence (T-NPES) events widely occurred with high frequencies in plains regions in eastern China but happened less often in basin regions like Xi’an and Chengdu. We propose a conceptual model of the T-NPES events.
Dominic Heslin-Rees, Peter Tunved, Johan Ström, Roxana Cremer, Paul Zieger, Ilona Riipinen, Annica M. L. Ekman, Konstantinos Eleftheriadis, and Radovan Krejci
Atmos. Chem. Phys., 24, 2059–2075, https://doi.org/10.5194/acp-24-2059-2024, https://doi.org/10.5194/acp-24-2059-2024, 2024
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Light-absorbing atmospheric particles (e.g. black carbon – BC) exert a warming effect on the Arctic climate. We show that the amount of particle light absorption decreased from 2002 to 2023. We conclude that in addition to reductions in emissions of BC, wet removal plays a role in the long-term reduction of BC in the Arctic, given the increase in surface precipitation experienced by air masses arriving at the site. The potential impact of biomass burning events is shown to have increased.
Julika Zinke, Ernst Douglas Nilsson, Piotr Markuszewski, Paul Zieger, Eva Monica Mårtensson, Anna Rutgersson, Erik Nilsson, and Matthew Edward Salter
Atmos. Chem. Phys., 24, 1895–1918, https://doi.org/10.5194/acp-24-1895-2024, https://doi.org/10.5194/acp-24-1895-2024, 2024
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We conducted two research campaigns in the Baltic Sea, during which we combined laboratory sea spray simulation experiments with flux measurements on a nearby island. To combine these two methods, we scaled the laboratory measurements to the flux measurements using three different approaches. As a result, we derived a parameterization that is dependent on wind speed and wave state for particles with diameters 0.015–10 μm. This parameterization is applicable to low-salinity waters.
Máté Vörösmarty, Philip K. Hopke, and Imre Salma
EGUsphere, https://doi.org/10.5194/egusphere-2024-316, https://doi.org/10.5194/egusphere-2024-316, 2024
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The World Health Organization identified the ultrafine particles, which make up most of the particle number concentrations, as a potential risk factor for humans. The sources of particle numbers are very different from those of the particulate matter mass. We performed source apportionment of size segregated particle number concentrations over the diameter range of 6–1000 nm in Budapest for 11 full years. Six source types were identified, characterised, and quantified.
Sarah Tinorua, Cyrielle Denjean, Pierre Nabat, Thierry Bourrianne, Véronique Pont, François Gheusi, and Emmanuel Leclerc
Atmos. Chem. Phys., 24, 1801–1824, https://doi.org/10.5194/acp-24-1801-2024, https://doi.org/10.5194/acp-24-1801-2024, 2024
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At a French high-altitude site, where many complex interactions between black carbon (BC), radiation, clouds and snow impact climate, 2 years of refractive BC (rBC) and aerosol optical and microphysical measurements have been made. We observed strong seasonal rBC properties variations, with an enhanced absorption in summer compared to winter. The combination of rBC emission sources, transport pathways, atmospheric dynamics and chemical processes explains the rBC light absorption seasonality.
Wenwen Ma, Rong Sun, Xiaoping Wang, Zheng Zong, Shizhen Zhao, Zeyu Sun, Chongguo Tian, Jianhui Tang, Song Cui, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 24, 1509–1523, https://doi.org/10.5194/acp-24-1509-2024, https://doi.org/10.5194/acp-24-1509-2024, 2024
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This is the first report of long-term atmospheric PAH monitoring around the Bohai Sea. The results showed that the concentrations of PAHs in the atmosphere around the Bohai Sea decreased from June 2014 to May 2019, especially the concentrations of highly toxic PAHs. This indicates that the contributions from PAH sources changed to a certain extent in different areas, and it also led to reductions in the related health risk and medical costs following pollution prevention and control.
Julius Seidler, Markus N. Friedrich, Christoph K. Thomas, and Anke C. Nölscher
Atmos. Chem. Phys., 24, 137–153, https://doi.org/10.5194/acp-24-137-2024, https://doi.org/10.5194/acp-24-137-2024, 2024
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Here, we study the transport of ultrafine particles (UFPs) from an airport to two new adjacent measuring sites for 1 year. The number of UFPs in the air and the diurnal variation are typical urban. Winds from the airport show increased number concentrations. Additionally, considering wind frequencies, we estimate that, from all UFPs measured at the two sites, 10 %–14 % originate from the airport and/or other UFP sources from between the airport and site.
Andreas Aktypis, Christos Kaltsonoudis, David Patoulias, Panayiotis Kalkavouras, Angeliki Matrali, Christina N. Vasilakopoulou, Evangelia Kostenidou, Kalliopi Florou, Nikos Kalivitis, Aikaterini Bougiatioti, Konstantinos Eleftheriadis, Stergios Vratolis, Maria I. Gini, Athanasios Kouras, Constantini Samara, Mihalis Lazaridis, Sofia-Eirini Chatoutsidou, Nikolaos Mihalopoulos, and Spyros N. Pandis
Atmos. Chem. Phys., 24, 65–84, https://doi.org/10.5194/acp-24-65-2024, https://doi.org/10.5194/acp-24-65-2024, 2024
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Extensive continuous particle number size distribution measurements took place during two summers (2020 and 2021) at 11 sites in Greece for the investigation of the frequency and the spatial extent of new particle formation. The frequency during summer varied from close to zero in southwestern Greece to more than 60 % in the northern, central, and eastern regions. The spatial variability can be explained by the proximity of the sites to coal-fired power plants and agricultural areas.
Juan Andrés Casquero-Vera, Daniel Pérez-Ramírez, Hassan Lyamani, Fernando Rejano, Andrea Casans, Gloria Titos, Francisco José Olmo, Lubna Dada, Simo Hakala, Tareq Hussein, Katrianne Lehtipalo, Pauli Paasonen, Antti Hyvärinen, Noemí Pérez, Xavier Querol, Sergio Rodríguez, Nikos Kalivitis, Yenny González, Mansour A. Alghamdi, Veli-Matti Kerminen, Andrés Alastuey, Tuukka Petäjä, and Lucas Alados-Arboledas
Atmos. Chem. Phys., 23, 15795–15814, https://doi.org/10.5194/acp-23-15795-2023, https://doi.org/10.5194/acp-23-15795-2023, 2023
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Here we present the first study of the effect of mineral dust on the inhibition/promotion of new particle formation (NPF) events in different dust-influenced areas. Unexpectedly, we show that the occurrence of NPF events is highly frequent during mineral dust outbreaks, occurring even during extreme dust outbreaks. We also show that the occurrence of NPF events during mineral dust outbreaks significantly affects the potential cloud condensation nuclei budget.
Kevin R. Barry, Thomas C. J. Hill, Marina Nieto-Caballero, Thomas A. Douglas, Sonia M. Kreidenweis, Paul J. DeMott, and Jessie M. Creamean
Atmos. Chem. Phys., 23, 15783–15793, https://doi.org/10.5194/acp-23-15783-2023, https://doi.org/10.5194/acp-23-15783-2023, 2023
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Ice-nucleating particles (INPs) are important for the climate due to their influence on cloud properties. To understand potential land-based sources of them in the Arctic, we carried out a survey near the northernmost point of Alaska, a landscape connected to the permafrost (thermokarst). Permafrost contained high concentrations of INPs, with the largest values near the coast. The thermokarst lakes were found to emit INPs, and the water contained elevated concentrations.
Yang Wang, Chanakya Bagya Ramesh, Scott E. Giangrande, Jerome Fast, Xianda Gong, Jiaoshi Zhang, Ahmet Tolga Odabasi, Marcus Vinicius Batista Oliveira, Alyssa Matthews, Fan Mei, John E. Shilling, Jason Tomlinson, Die Wang, and Jian Wang
Atmos. Chem. Phys., 23, 15671–15691, https://doi.org/10.5194/acp-23-15671-2023, https://doi.org/10.5194/acp-23-15671-2023, 2023
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We report the vertical profiles of aerosol properties over the Southern Great Plains (SGP), a region influenced by shallow convective clouds, land–atmosphere interactions, boundary layer turbulence, and the aerosol life cycle. We examined the processes that drive the aerosol population and distribution in the lower troposphere over the SGP. This study helps improve our understanding of aerosol–cloud interactions and the model representation of aerosol processes.
Stefania Gilardoni, Dominic Heslin-Rees, Mauro Mazzola, Vito Vitale, Michael Sprenger, and Radovan Krejci
Atmos. Chem. Phys., 23, 15589–15607, https://doi.org/10.5194/acp-23-15589-2023, https://doi.org/10.5194/acp-23-15589-2023, 2023
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Models still fail in reproducing black carbon (BC) temporal variability in the Arctic. Analysis of equivalent BC concentrations in the European Arctic shows that BC seasonal variability is modulated by the efficiency of removal by precipitation during transport towards high latitudes. Short-term variability is controlled by synoptic-scale circulation patterns. The advection of warm air from lower latitudes is an effective pollution transport pathway during summer.
Ping Tian, Dantong Liu, Kang Hu, Yangzhou Wu, Mengyu Huang, Hui He, Jiujiang Sheng, Chenjie Yu, Dawei Hu, and Deping Ding
EGUsphere, https://doi.org/10.5194/egusphere-2023-2744, https://doi.org/10.5194/egusphere-2023-2744, 2023
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The results here thus provide direct evidence of efficient droplet activation of BC, and the CCN activation fraction of BC was higher than all-particle suggested the higher CCN activity of BC though its hygroscopicity is lower. Our research reveals that the evolution of BC's hygroscopicity and its CCN activation properties through atmospheric aging can be effectively characterized by the photochemical age.
Markku Kulmala, Anna Lintunen, Hanna Lappalainen, Annele Virtanen, Chao Yan, Ekaterina Ezhova, Tuomo Nieminen, Ilona Riipinen, Risto Makkonen, Johanna Tamminen, Anu-Maija Sundström, Antti Arola, Armin Hansel, Kari Lehtinen, Timo Vesala, Tuukka Petäjä, Jaana Bäck, Tom Kokkonen, and Veli-Matti Kerminen
Atmos. Chem. Phys., 23, 14949–14971, https://doi.org/10.5194/acp-23-14949-2023, https://doi.org/10.5194/acp-23-14949-2023, 2023
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To be able to meet global grand challenges, we need comprehensive open data with proper metadata. In this opinion paper, we describe the SMEAR (Station for Measuring Earth surface – Atmosphere Relations) concept and include several examples (cases), such as new particle formation and growth, feedback loops and the effect of COVID-19, and what has been learned from these investigations. The future needs and the potential of comprehensive observations of the environment are summarized.
Gabriel Pereira Freitas, Ben Kopec, Kouji Adachi, Radovan Krejci, Dominic Heslin-Rees, Karl Espen Yttri, Alun Hubbard, Jeffrey M. Welker, and Paul Zieger
EGUsphere, https://doi.org/10.5194/egusphere-2023-2600, https://doi.org/10.5194/egusphere-2023-2600, 2023
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Bioaerosols can participate in ice formation within clouds. In the Arctic, where global warming manifests most, they may become increasingly more important as their sources are prevailing for a longer period of the year. We have directly measured bioaerosols within clouds for a full year at an Arctic mountain site using a novel combination of cloud particle sampling and single-particle techniques. We show that bioaerosols act as cloud seeds and may influence the presence of ice within clouds.
Weilun Zhao, Ying Li, Gang Zhao, Song Guo, Nan Ma, Shuya Hu, and Chunsheng Zhao
Atmos. Chem. Phys., 23, 14889–14902, https://doi.org/10.5194/acp-23-14889-2023, https://doi.org/10.5194/acp-23-14889-2023, 2023
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Studies have concentrated on particles containing black carbon (BC) smaller than 700 nm because of technical limitations. In this study, BC-containing particles larger than 700 nm (BC>700) were measured, highlighting their importance to total BC mass and absorption. The contribution of BC>700 to the BC direct radiative effect was estimated, highlighting the necessity to consider the whole size range of BC-containing particles in the model estimation of BC radiative effects.
Alessandro Bigi, Giorgio Veratti, Elisabeth Andrews, Martine Collaud Coen, Lorenzo Guerrieri, Vera Bernardoni, Dario Massabò, Luca Ferrero, Sergio Teggi, and Grazia Ghermandi
Atmos. Chem. Phys., 23, 14841–14869, https://doi.org/10.5194/acp-23-14841-2023, https://doi.org/10.5194/acp-23-14841-2023, 2023
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Atmospheric particles include compounds that play a key role in the greenhouse effect and air toxicity. Concurrent observations of these compounds by multiple instruments are presented, following deployment within an urban environment in the Po Valley, one of Europe's pollution hotspots. The study compares these data, highlighting the impact of ground emissions, mainly vehicular traffic and biomass burning, on the absorption of sun radiation and, ultimately, on climate change and air quality.
Ghislain Motos, Gabriel Freitas, Paraskevi Georgakaki, Jörg Wieder, Guangyu Li, Wenche Aas, Chris Lunder, Radovan Krejci, Julie Thérèse Pasquier, Jan Henneberger, Robert Oscar David, Christoph Ritter, Claudia Mohr, Paul Zieger, and Athanasios Nenes
Atmos. Chem. Phys., 23, 13941–13956, https://doi.org/10.5194/acp-23-13941-2023, https://doi.org/10.5194/acp-23-13941-2023, 2023
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Low-altitude clouds play a key role in regulating the climate of the Arctic, a region that suffers from climate change more than any other on the planet. We gathered meteorological and aerosol physical and chemical data over a year and utilized them for a parameterization that help us unravel the factors driving and limiting the efficiency of cloud droplet formation. We then linked this information to the sources of aerosol found during each season and to processes of cloud glaciation.
Alberto Sanchez-Marroquin, Sarah L. Barr, Ian T. Burke, James B. McQuaid, and Benjamin J. Murray
Atmos. Chem. Phys., 23, 13819–13834, https://doi.org/10.5194/acp-23-13819-2023, https://doi.org/10.5194/acp-23-13819-2023, 2023
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The sources and concentrations of ice-nucleating particles (INPs) in the Arctic are still poorly understood. Here we report aircraft-based INP concentrations and aerosol composition in the western North American Arctic. The concentrations of INPs and all aerosol particles were low. The aerosol samples contained mostly sea salt and dust particles. Dust particles were more relevant for the INP concentrations than sea salt. However, dust alone cannot account for all of the measured INPs.
Katherine L. Ackerman, Alison D. Nugent, and Chung Taing
Atmos. Chem. Phys., 23, 13735–13753, https://doi.org/10.5194/acp-23-13735-2023, https://doi.org/10.5194/acp-23-13735-2023, 2023
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Sea salt aerosol is an important marine aerosol that may be produced in greater quantities in coastal regions than over the open ocean. This study observed these particles along the windward coastline of O'ahu, Hawai'i, to understand how wind and waves influence their production and dispersal. Overall, wave heights were the strongest variable correlated with changes in aerosol concentrations, while wind speeds played an important role in their horizontal dispersal and vertical mixing.
Jiyeon Park, Hyojin Kang, Yeontae Gim, Eunho Jang, Ki-Tae Park, Sangjong Park, Chang Hoon Jung, Darius Ceburnis, Colin O'Dowd, and Young Jun Yoon
Atmos. Chem. Phys., 23, 13625–13646, https://doi.org/10.5194/acp-23-13625-2023, https://doi.org/10.5194/acp-23-13625-2023, 2023
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We measured the number size distribution of 2.5–300 nm particles and cloud condensation nuclei (CCN) number concentrations at King Sejong Station on the Antarctic Peninsula continuously from 1 January to 31 December 2018. During the pristine and clean periods, 97 new particle formation (NPF) events were detected. For 83 of these, CCN concentrations increased by 2 %–268 % (median 44 %) following 1 to 36 h (median 8 h) after NPF events.
Aodong Du, Jiaxing Sun, Hang Liu, Weiqi Xu, Wei Zhou, Yuting Zhang, Lei Li, Xubing Du, Yan Li, Xiaole Pan, Zifa Wang, and Yele Sun
Atmos. Chem. Phys., 23, 13597–13611, https://doi.org/10.5194/acp-23-13597-2023, https://doi.org/10.5194/acp-23-13597-2023, 2023
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We characterized the impacts of emission controls on particle mixing state and density during the Beijing Olympic Winter Games using a SPAMS in tandem with a DMA and an AAC. OC and sulfate-containing particles increased, while those from primary emissions decreased. The effective particle densities increased and varied largely for different particles, highlighting the impacts of aging and formation processes on the changes of particle density and mixing state.
Henriette Gebauer, Athena Augusta Floutsi, Moritz Haarig, Martin Radenz, Ronny Engelmann, Dietrich Althausen, Annett Skupin, Albert Ansmann, Cordula Zenk, and Holger Baars
EGUsphere, https://doi.org/10.5194/egusphere-2023-2305, https://doi.org/10.5194/egusphere-2023-2305, 2023
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Sulfate aerosol from the volcanic eruption at Las Palmas in 2021 was observed over Cabo Verde. The impact of the eruption was observable even 1500 km away from the emission source and led to an extraordinary strong pollution in the lowermost atmosphere above Cabo Verde. We characterized the aerosol burden based on lidar and sun photometer observations. We compared the volcanic case to the typical background conditions (reference case) to quantify the volcanic pollution.
Yange Deng, Hiroshi Tanimoto, Kohei Ikeda, Sohiko Kameyama, Sachiko Okamoto, Jinyoung Jung, Young Jun Yoon, Eun Jin Yang, and Sung-Ho Kang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2315, https://doi.org/10.5194/egusphere-2023-2315, 2023
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Black carbon aerosols (BC) play important roles in Arctic climate change, yet they are not well understood because of limited observational facts. We observed BC mass concentrations (mBC) in the Western Arctic Ocean during summer and early autumn 2016–2020. The mean mBC in 2019 was much higher than in other years. Biomass burning was likely the dominant BC source. Boreal fire BC transport occurring near the surface and/or in the mid-troposphere contributed to high BC events in the Arctic Ocean.
Karine Sellegri, Theresa Barthelmeß, Jonathan Trueblood, Antonia Cristi, Evelyn Freney, Clémence Rose, Neill Barr, Mike Harvey, Karl Safi, Stacy Deppeler, Karen Thompson, Wayne Dillon, Anja Engel, and Cliff Law
Atmos. Chem. Phys., 23, 12949–12964, https://doi.org/10.5194/acp-23-12949-2023, https://doi.org/10.5194/acp-23-12949-2023, 2023
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The amount of sea spray emitted to the atmosphere depends on the ocean temperature, but this dependency is not well understood, especially when ocean biology is involved. In this study, we show that sea spray emissions are increased by up to a factor of 4 at low seawater temperatures compared to moderate temperatures, and we quantify the temperature dependence as a function of the ocean biogeochemistry.
Albert Ansmann, Kevin Ohneiser, Ronny Engelmann, Martin Radenz, Hannes Griesche, Julian Hofer, Dietrich Althausen, Jessie M. Creamean, Matthew C. Boyer, Daniel A. Knopf, Sandro Dahlke, Marion Maturilli, Henriette Gebauer, Johannes Bühl, Cristofer Jimenez, Patric Seifert, and Ulla Wandinger
Atmos. Chem. Phys., 23, 12821–12849, https://doi.org/10.5194/acp-23-12821-2023, https://doi.org/10.5194/acp-23-12821-2023, 2023
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The 1-year MOSAiC (2019–2020) expedition with the German ice breaker Polarstern was the largest polar field campaign ever conducted. The Polarstern, with our lidar aboard, drifted with the pack ice north of 85° N for more than 7 months (October 2019 to mid-May 2020). We measured the full annual cycle of aerosol conditions in terms of aerosol optical and cloud-process-relevant properties. We observed a strong contrast between polluted winter and clean summer aerosol conditions.
Nair Krishnan Kala, Narayana Sarma Anand, Mohanan R. Manoj, Srinivasan Prasanth, Harshavardhana S. Pathak, Thara Prabhakaran, Pramod D. Safai, Krishnaswamy K. Moorthy, and Sreedharan K. Satheesh
Atmos. Chem. Phys., 23, 12801–12819, https://doi.org/10.5194/acp-23-12801-2023, https://doi.org/10.5194/acp-23-12801-2023, 2023
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We present a 3D data set of aerosol black carbon over the Indian mainland by assimilating data from surface, aircraft, and balloon measurements, along with multi-satellite observations. Radiative transfer computations using height-resolved aerosol absorption show higher warming in the free troposphere and will have large implications for atmospheric stability. This data set will help reduce the uncertainty in aerosol radiative effects in climate model simulations over the Indian region.
Elise K. Wilbourn, Larissa Lacher, Carlos Guerrero, Hemanth S. K. Vepuri, Kristina Höhler, Jens Nadolny, Ottmar Möhler, and Naruki Hiranuma
EGUsphere, https://doi.org/10.5194/egusphere-2023-1456, https://doi.org/10.5194/egusphere-2023-1456, 2023
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Ambient ice and cloud particles were measured at terrestrial and temperate marine sites. Ice particles were more abundant in the former site while the fraction of ice particles relative to total ambient particles was higher in the latter site. We found continental and biogenic materials as a major source of ice particles in the terrestrial site. A positive correlation was found for ice and cloud particle concentrations in the marine site, implying they originate from the same source.
Sujan Shrestha, Shan Zhou, Manisha Mehra, Meghan Guagenti, Subin Yoon, Sergio L. Alvarez, Fangzhou Guo, Chun-Ying Chao, James H. Flynn III, Yuxuan Wang, Robert J. Griffin, Sascha Usenko, and Rebecca J. Sheesley
Atmos. Chem. Phys., 23, 10845–10867, https://doi.org/10.5194/acp-23-10845-2023, https://doi.org/10.5194/acp-23-10845-2023, 2023
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We evaluated different methods for assessing the influence of long-range transport of biomass burning (BB) plumes at a coastal site in Texas, USA. We show that the aerosol composition and optical properties exhibited good agreement, while CO and acetonitrile trends were less specific for assessing BB source influence. Our results demonstrate that the network of aerosol optical measurements can be useful for identifying the influence of aged BB plumes in anthropogenically influenced areas.
Guangyu Li, Elise K. Wilbourn, Zezhen Cheng, Jörg Wieder, Allison Fagerson, Jan Henneberger, Ghislain Motos, Rita Traversi, Sarah D. Brooks, Mauro Mazzola, Swarup China, Athanasios Nenes, Ulrike Lohmann, Naruki Hiranuma, and Zamin A. Kanji
Atmos. Chem. Phys., 23, 10489–10516, https://doi.org/10.5194/acp-23-10489-2023, https://doi.org/10.5194/acp-23-10489-2023, 2023
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In this work, we present results from an Arctic field campaign (NASCENT) in Ny-Ålesund, Svalbard, on the abundance, variability, physicochemical properties, and potential sources of ice-nucleating particles (INPs) relevant for mixed-phase cloud formation. This work improves the data coverage of Arctic INPs and aerosol properties, allowing for the validation of models predicting cloud microphysical and radiative properties of mixed-phase clouds in the rapidly warming Arctic.
Jun Shi, Jinpei Yan, Shanshan Wang, Shuhui Zhao, Miming Zhang, Suqing Xu, Qi Lin, Hang Yang, and Siying Dai
Atmos. Chem. Phys., 23, 10349–10359, https://doi.org/10.5194/acp-23-10349-2023, https://doi.org/10.5194/acp-23-10349-2023, 2023
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An underway aerosol-monitoring system was used to determine the Na+ concentration during different cyclone periods in the Southern Ocean in order to assess the potential effects of cyclones on sea spray aerosol (SSA) emissions. It was estimated that more than 23 % of SSAs were transported upwards during cyclone periods. Vertically transported SSAs can be regarded as an important source of CCN and hence have an effect on climate in the middle and high latitudes of the Southern Hemisphere.
Jean-Philippe Putaud, Enrico Pisoni, Alexander Mangold, Christoph Hueglin, Jean Sciare, Michael Pikridas, Chrysanthos Savvides, Jakub Ondracek, Saliou Mbengue, Alfred Wiedensohler, Kay Weinhold, Maik Merkel, Laurent Poulain, Dominik van Pinxteren, Hartmut Herrmann, Andreas Massling, Claus Nordstroem, Andrés Alastuey, Cristina Reche, Noemí Pérez, Sonia Castillo, Mar Sorribas, Jose Antonio Adame, Tuukka Petaja, Katrianne Lehtipalo, Jarkko Niemi, Véronique Riffault, Joel F. de Brito, Augustin Colette, Olivier Favez, Jean-Eudes Petit, Valérie Gros, Maria I. Gini, Stergios Vratolis, Konstantinos Eleftheriadis, Evangelia Diapouli, Hugo Denier van der Gon, Karl Espen Yttri, and Wenche Aas
Atmos. Chem. Phys., 23, 10145–10161, https://doi.org/10.5194/acp-23-10145-2023, https://doi.org/10.5194/acp-23-10145-2023, 2023
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Many European people are still exposed to levels of air pollution that can affect their health. COVID-19 lockdowns in 2020 were used to assess the impact of the reduction in human mobility on air pollution across Europe by comparing measurement data with values that would be expected if no lockdown had occurred. We show that lockdown measures did not lead to consistent decreases in the concentrations of fine particulate matter suspended in the air, and we investigate why.
Qian Xiao, Jiaoshi Zhang, Yang Wang, Luke D. Ziemba, Ewan Crosbie, Edward L. Winstead, Claire E. Robinson, Joshua P. DiGangi, Glenn S. Diskin, Jeffrey S. Reid, K. Sebastian Schmidt, Armin Sorooshian, Miguel Ricardo A. Hilario, Sarah Woods, Paul Lawson, Snorre A. Stamnes, and Jian Wang
Atmos. Chem. Phys., 23, 9853–9871, https://doi.org/10.5194/acp-23-9853-2023, https://doi.org/10.5194/acp-23-9853-2023, 2023
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Using recent airborne measurements, we show that the influences of anthropogenic emissions, transport, convective clouds, and meteorology lead to new particle formation (NPF) under a variety of conditions and at different altitudes in tropical marine environments. NPF is enhanced by fresh urban emissions in convective outflow but is suppressed in air masses influenced by aged urban emissions where reactive precursors are mostly consumed while particle surface area remains relatively high.
Simo Hakala, Ville Vakkari, Heikki Lihavainen, Antti-Pekka Hyvärinen, Kimmo Neitola, Jenni Kontkanen, Veli-Matti Kerminen, Markku Kulmala, Tuukka Petäjä, Tareq Hussein, Mamdouh I. Khoder, Mansour A. Alghamdi, and Pauli Paasonen
Atmos. Chem. Phys., 23, 9287–9321, https://doi.org/10.5194/acp-23-9287-2023, https://doi.org/10.5194/acp-23-9287-2023, 2023
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Things are not always as they first seem in ambient aerosol measurements. Observations of decreasing particle sizes are often interpreted as resulting from particle evaporation. We show that such observations can counterintuitively be explained by particles that are constantly growing in size. This requires one to account for the previous movements of the observed air. Our explanation implies a larger number of larger particles, meaning more significant effects of aerosols on climate and health.
Akriti Masoom, Ilias Fountoulakis, Stelios Kazadzis, Ioannis-Panagiotis Raptis, Anna Kampouri, Basil E. Psiloglou, Dimitra Kouklaki, Kyriakoula Papachristopoulou, Eleni Marinou, Stavros Solomos, Anna Gialitaki, Dimitra Founda, Vasileios Salamalikis, Dimitris Kaskaoutis, Natalia Kouremeti, Nikolaos Mihalopoulos, Vassilis Amiridis, Andreas Kazantzidis, Alexandros Papayannis, Christos S. Zerefos, and Kostas Eleftheratos
Atmos. Chem. Phys., 23, 8487–8514, https://doi.org/10.5194/acp-23-8487-2023, https://doi.org/10.5194/acp-23-8487-2023, 2023
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We analyse the spatial and temporal aerosol spectral optical properties during the extreme wildfires of August 2021 in Greece and assess their effects on air quality and solar radiation quantities related to health, agriculture, and energy. Different aerosol conditions are identified (pure smoke, pure dust, dust–smoke together); the largest impact on solar radiation quantities is found for cases with mixed dust–smoke aerosols. Such situations are expected to occur more frequently in the future.
Xiaojing Shen, Junying Sun, Huizheng Che, Yangmei Zhang, Chunhong Zhou, Ke Gui, Wanyun Xu, Quan Liu, Junting Zhong, Can Xia, Xinyao Hu, Sinan Zhang, Jialing Wang, Shuo Liu, Jiayuan Lu, Aoyuan Yu, and Xiaoye Zhang
Atmos. Chem. Phys., 23, 8241–8257, https://doi.org/10.5194/acp-23-8241-2023, https://doi.org/10.5194/acp-23-8241-2023, 2023
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New particle formation (NPF) events occur when the dust episodes' fade is analysed based on long-term measurement of particle number size distribution. Analysis shows that the observed formation and growth rates are approximately 50 % of and 30 % lower than those of other NPF events. As a consequence of the uptake of precursor gases on mineral dust, the physical and chemical properties of submicron particles, as well as the ability to be cloud condensation nuclei, can be changed.
Marco Zanatta, Stephan Mertes, Olivier Jourdan, Regis Dupuy, Emma Järvinen, Martin Schnaiter, Oliver Eppers, Johannes Schneider, Zsófia Jurányi, and Andreas Herber
Atmos. Chem. Phys., 23, 7955–7973, https://doi.org/10.5194/acp-23-7955-2023, https://doi.org/10.5194/acp-23-7955-2023, 2023
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Black carbon (BC) particles influence the Arctic radiative balance. Vertical measurements of black carbon were conducted during the ACLOUD campaign in the European Arctic to study the interaction of BC with clouds. This study shows that clouds influence the vertical variability of BC properties across the inversion layer and that multiple activation and transformation mechanisms of BC may occur in the presence of low-level, persistent, mixed-phase clouds.
Guangdong Niu, Ximeng Qi, Liangduo Chen, Lian Xue, Shiyi Lai, Xin Huang, Jiaping Wang, Xuguang Chi, Wei Nie, Veli-Matti Kerminen, Tuukka Petäjä, Markku Kulmala, and Aijun Ding
Atmos. Chem. Phys., 23, 7521–7534, https://doi.org/10.5194/acp-23-7521-2023, https://doi.org/10.5194/acp-23-7521-2023, 2023
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The reported below-cloud wet-scavenging coefficients (BWSCs) are much higher than theoretical data, but the reason remains unclear. Based on long-term observation, we find that air mass changing during rainfall events causes the overestimation of BWSCs. Thus, the discrepancy in BWSCs between observation and theory is not as large as currently believed. To obtain reasonable BWSCs and parameterizations from field observations, the effect of air mass changes needs to be considered.
Andreas Petzold, Ulrich Bundke, Anca Hienola, Paolo Laj, Cathrine Lund Myhre, Alex Vermeulen, Angeliki Adamaki, Werner Kutsch, Valerie Thouret, Damien Boulanger, Markus Fiebig, Markus Stocker, Zhiming Zhao, and Ari Asmi
EGUsphere, https://doi.org/10.5194/egusphere-2023-1423, https://doi.org/10.5194/egusphere-2023-1423, 2023
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The atmosphere-centred European environmental research infrastructures ACTRIS, IAGOS and ICOS can assume a leading role in atmospheric sciences thanks to their capacities for acquisition and reporting of long-term and high-quality observational data. We elaborate on the novel research opportunities which evolve from the combination of open access to data, data interoperability and tools and technologies offered by data-intensive science through the European Open Science Cloud.
Antonio Donateo, Gianluca Pappaccogli, Daniela Famulari, Mauro Mazzola, Federico Scoto, and Stefano Decesari
Atmos. Chem. Phys., 23, 7425–7445, https://doi.org/10.5194/acp-23-7425-2023, https://doi.org/10.5194/acp-23-7425-2023, 2023
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This work aims to measure the turbulent fluxes and the dry deposition velocity for size-segregated particles (from ultrafine to quasi-coarse range) at an Arctic site (Svalbard). Aiming to characterize the effect of surface properties on dry deposition, continuous observations were performed from the coldest months (on snow surface) to the snow melting period and throughout the summer (snow-free surface). A data fit of the deposition velocity as a function of particle diameters will be provided.
Hang Liu, Xiaole Pan, Shandong Lei, Yuting Zhang, Aodong Du, Weijie Yao, Guiqian Tang, Tao Wang, Jinyuan Xin, Jie Li, Yele Sun, Junji Cao, and Zifa Wang
Atmos. Chem. Phys., 23, 7225–7239, https://doi.org/10.5194/acp-23-7225-2023, https://doi.org/10.5194/acp-23-7225-2023, 2023
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We provide the average vertical profiles of black carbon (BC) concentration, size distribution and coating thickness at different times of the day in an urban area based on 112 vertical profiles. In addition, it is found that BC in the residual layer generally has a thicker coating, higher absorption enhancement and hygroscopicity than on the surface. Such aged BC could enter into the boundary layer and influence the BC properties in the early morning.
Cristina González-Flórez, Martina Klose, Andrés Alastuey, Sylvain Dupont, Jerónimo Escribano, Vicken Etyemezian, Adolfo Gonzalez-Romero, Yue Huang, Konrad Kandler, George Nikolich, Agnesh Panta, Xavier Querol, Cristina Reche, Jesús Yus-Díez, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 23, 7177–7212, https://doi.org/10.5194/acp-23-7177-2023, https://doi.org/10.5194/acp-23-7177-2023, 2023
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Atmospheric mineral dust consists of tiny mineral particles that are emitted by wind erosion from arid regions. Its particle size distribution (PSD) affects its impact on the Earth's system. Nowadays, there is an incomplete understanding of the emitted dust PSD and a lot of debate about its variability. Here, we try to address these issues based on the measurements performed during a wind erosion and dust emission field campaign in the Moroccan Sahara within the framework of FRAGMENT project.
Cited articles
Alfoldy, B., Giechaskiel, B., Hofmann, W., and Drossinos, Y.:
Size-distribution dependent lung deposition of diesel exhaust particles, J.
Aerosol Sci., 40, 652–663, https://doi.org/10.1016/j.jaerosci.2009.04.009, 2009.
Amanatidis, S., Ntziachristos, L., Karjalainen, P., Saukko, E., Simonen, P.,
Kuittinen, N., Aakko-Saksa, P., Timonen, H., Ronkko, T., and Keskinen, J.:
Comparative performance of a thermal denuder and a catalytic stripper in
sampling laboratory and marine exhaust aerosols, Aerosol Sci. Tech., 52,
420–432, https://doi.org/10.1080/02786826.2017.1422236, 2018.
Arnold, F., Pirjola, L., Ronkko, T., Reichl, U., Schlager, H., Lahde, T.,
Heikkila, J., and Keskinen, J.: First online measurements of sulfuric acid
gas in modern heavy-duty diesel engine exhaust: implications for
nanoparticle formation, Environ. Sci. Technol., 46, 11227–11234,
https://doi.org/10.1021/es302432s, 2012.
Ban-Weiss, G. A., Lunden, M. M., Kirchstetter, T. W., and Harley, R. A.:
Measurement of black carbon and particle number emission factors from
individual heavy-duty trucks, Environ. Sci. Technol., 43, 1419–1424,
https://doi.org/10.1021/es8021039, 2009.
Bergmann, M., Kirchner, U., Vogt, R., and Benter, T.: On-road and laboratory
investigation of low-level PM emissions of a modern diesel particulate
filter equipped diesel passenger car, Atmos. Environ., 43, 1908–1916,
https://doi.org/10.1016/j.atmosenv.2008.12.039, 2009.
Bishop, G. A. and Stedman, D. H.: A decade of on-road emissions
measurements, Environ. Sci. Technol., 42, 1651–1656,
https://doi.org/10.1021/es702413b, 2008.
Bishop, G. A., Peddle, A. M., Stedman, D. H., and Zhan, T.: On-road emission
measurements of reactive nitrogen compounds from three California cities,
Environ. Sci. Technol., 44, 3616–3620, https://doi.org/10.1021/es903722p,
2010.
Bishop, G. A., Schuchmann, B. G., and Stedman, D. H.: Heavy-duty truck
emissions in the South Coast Air Basin of California, Environ. Sci.
Technol., 47, 9523–9529, https://doi.org/10.1021/es401487b, 2013.
Bishop, G. A., Hottor-Raguindin, R., Stedman, D. H., McClintock, P.,
Theobald, E., Johnson, J. D., Lee, D. W., Zietsman, J., and Misra, C.:
On-road heavy-duty vehicle emissions monitoring system, Environ. Sci.
Technol., 49, 1639–1645, https://doi.org/10.1021/es505534e, 2015.
Biswas, S., Verma, V., Schauer, J. J., Cassee, F. R., Cho, A. K., and
Sioutas, C.: Oxidative potential of semi-volatile and non-volatile
particulate matter (PM) from heavy-duty vehicles retrofitted with emission
control technologies, Environ. Sci. Technol., 43, 3905–3912,
https://doi.org/10.1021/es9000592, 2009.
Bocchi, C., Bazzini, C., Fontana, F., Pinto, G., Martino, A., and Cassoni,
F.: Characterization of urban aerosol: seasonal variation of mutagenicity
and genotoxicity of PM2.5, PM1 and semi-volatile organic compounds, Mutat.
Res., 809, 16–23, https://doi.org/10.1016/j.mrgentox.2016.07.007, 2016.
Burgard, D. A. and Provinsal, M. N.: On-road, in-use gaseous emission
measurements by remote sensing of school buses equipped with diesel
oxidation catalysts and diesel particulate filters, J. Air Waste Manage., 59, 1468–1473, https://doi.org/10.3155/1047-3289.59.12.1468, 2009.
Burgard, D. A., Bishop, G. A., Stedman, D. H., Gessner, V. H., and
Daeschlein, C.: Remote sensing of in-use heavy-duty diesel trucks, Environ.
Sci. Technol., 40, 6938–6942, https://doi.org/10.1021/es060989a, 2006.
Campagnolo, D., Cattaneo, A., Corbella, L., Borghi, F., Del Buono, L.,
Rovelli, S., Spinazze, A., and Cavallo, D. M.: In-vehicle airborne fine and
ultra-fine particulate matter exposure: The impact of leading vehicle
emissions, Environ. Int., 123, 407–416,
https://doi.org/10.1016/j.envint.2018.12.020, 2019.
Carslaw, D. C. and Rhys-Tyler, G.: New insights from comprehensive on-road
measurements of NOx, NO2 and NH3 from vehicle emission remote sensing in
London, UK, Atmos. Environ., 81, 339–347,
https://doi.org/10.1016/j.atmosenv.2013.09.026, 2013.
Carslaw, D. C., Beevers, S. D., Tate, J. E., Westmoreland, E. J., and
Williams, M. L.: Recent evidence concerning higher NOx emissions from
passenger cars and light-duty vehicles, Atmos. Environ., 45, 7053–7063,
https://doi.org/10.1016/j.atmosenv.2011.09.063, 2011.
Carslaw, D. C., Farren, N. J., Vaughan, A. R., Drysdale, W. S., Young, S.,
and Lee, J. D.: The diminishing importance of nitrogen dioxide emissions
from road vehicle exhaust, Atmos. Environ., 1, 100002,
https://doi.org/10.1016/j.aeaoa.2018.100002, 2019.
Chen, L., Wang, Z., Liu, S., and Qu, L.: Using a chassis dynamometer to
determine the influencing factors for the emissions of Euro VI vehicles,
Transport. Res. D-Tr. E., 65, 564–573,
https://doi.org/10.1016/j.trd.2018.09.022, 2018.
Cheung, H. H. Y., Tan, H., Xu, H., Li, F., Wu, C., Yu, J. Z., and Chan, C. K.: Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China, Atmos. Chem. Phys., 16, 8431–8446, https://doi.org/10.5194/acp-16-8431-2016, 2016.
Clark, N. N., Gautam, M., Rapp, B. L., Lyons, D. W., Graboski,
M. S., McCormick, L., Alleman, T. L., and Norton, P.: Diesel
and cng transit bus emissions characterization by two chassis dynamometer
laboratories: Results and issues, Soc. Autom. Eng.,
1999-01-1469, 1999.
Cui, M., Chen, Y., Feng, Y., Li, C., Zheng, J., Tian, C., Yan, C., and Zheng, M.: Measurement of PM and its chemical composition in real-world emissions from non-road and on-road diesel vehicles, Atmos. Chem. Phys., 17, 6779–6795, https://doi.org/10.5194/acp-17-6779-2017, 2017.
Dallmann, T. R., DeMartini, S. J., Kirchstetter, T. W., Herndon, S. C.,
Onasch, T. B., Wood, E. C., and Harley, R. A.: On-road measurement of gas
and particle-phase pollutant emission factors for individual heavy-duty
diesel trucks, Environ. Sci. Technol., 46, 8511–8518,
https://doi.org/10.1021/es301936c, 2012.
Donahue, N. M., Robinson, A. L., Stanier, C. O., and Pandis, S. N.: Coupled
partitioning, dilution, and chemical aging of semivolatile organics,
Environ. Sci. Technol., 40, 2635–2643, https://doi.org/10.1021/es052297c,
2006.
Dreher, D. B. and Harley, R. A.: A fuel-based inventory for heavy-duty
diesel truck emissions, J. Air Waste Manage., 48, 352–358,
https://doi.org/10.1080/10473289.1998.10463686, 1998.
Du, Y., Xu, X., Chu, M., Guo, Y., and Wang, J.: Air particulate matter and
cardiovascular disease: the epidemiological, biomedical and clinical
evidence, J. Thorac. Dis., 8, E8–E19,
https://doi.org/10.3978/j.issn.2072-1439.2015.11.37 2016.
Edwards, R., Larivé, J., Rickeard, D., and Weindorf, W.: Well-to-Wheels
analysis of future automotive fuels and powertrains in the European context:
Well-to-Tank Appendix 2-Version 4a, Joint Research Centre of the European
Commission, EUCAR, and CONCAWE, 1–133, https://doi.org/10.2790/95629, 2014.
EEA: Air Quality in Europe – 2018 Report. European Environment Agency Report No. 12/2018, ISSN 1977-8449, available at: https://www.eea.europa.eu/publications/air-quality-in-europe-2018 (last access: 8 May 2019), 2018.
Franco, V., Kousoulidou, M., Muntean, M., Ntziachristos, L., Hausberger, S.,
and Dilara, P.: Road vehicle emission factors development: A review, Atmos.
Environ., 70, 84–97, https://doi.org/10.1016/j.atmosenv.2013.01.006, 2013.
Gentner, D. R., Jathar, S. H., Gordon, T. D., Bahreini, R., Day, D. A., El
Haddad, I., Hayes, P. L., Pieber, S. M., Platt, S. M., de Gouw, J.,
Goldstein, A. H., Harley, R. A., Jimenez, J. L., Prevot, A. S., and
Robinson, A. L.: Review of Urban Secondary Organic Aerosol Formation from
Gasoline and Diesel Motor Vehicle Emissions, Environ. Sci. Technol., 51,
1074–1093, https://doi.org/10.1021/acs.est.6b04509, 2017.
Gertler, A. W.: Diesel vs. gasoline emissions: Does PM from diesel or
gasoline vehicles dominate in the US?, Atmos. Environ., 39, 2349–2355,
https://doi.org/10.1016/j.atmosenv.2004.05.065, 2005.
Giechaskiel, B., Alfoldy, B., and Drossinos, Y.: A metric for health effects
studies of diesel exhaust particles, J. Aerosol Sci., 40, 639–651,
https://doi.org/10.1016/j.jaerosci.2009.04.008, 2009.
Giechaskiel, B., Mamakos, A., Andersson, J., Dilara, P., Martini, G.,
Schindler, W., and Bergmann, A.: Measurement of Automotive Nonvolatile
Particle Number Emissions within the European Legislative Framework: A
Review, Aerosol Sci. Tech., 46, 719–749,
https://doi.org/10.1080/02786826.2012.661103, 2012.
Giechaskiel, B., Schwelberger, M., Delacroix, C., Marchetti, M., Feijen, M.,
Prieger, K., Andersson, S., and Karlsson, H. L.: Experimental assessment of
solid particle number Portable Emissions Measurement Systems (PEMS) for
heavy-duty vehicles applications, J. Aerosol Sci., 123, 161–170,
https://doi.org/10.1016/j.jaerosci.2018.06.014, 2018.
Gkatzelis, G. I., Papanastasiou, D. K., Florou, K., Kaltsonoudis, C., Louvaris, E., and Pandis, S. N.: Measurement of nonvolatile particle number size distribution, Atmos. Meas. Tech., 9, 103–114, https://doi.org/10.5194/amt-9-103-2016, 2016.
Grigoratos, T., Fontaras, G., Giechaskiel, B., and Zacharof, N.: Real-world
emissions performance of heavy-duty Euro VI diesel vehicles, Atmos.
Environ., 201, 348–359, https://doi.org/10.1016/j.atmosenv.2018.12.042,
2019.
Guo, J. D., Ge, Y. S., Hao, L. J., Tan, J. W., Li, J. Q., and Feng, X. Y.:
On-road measurement of regulated pollutants from diesel and CNG buses with
urea selective catalytic reduction systems, Atmos. Environ., 99, 1–9,
https://doi.org/10.1016/j.atmosenv.2014.07.032, 2014.
Hak, C. S., Hallquist, M., Ljungstrom, E., Svane, M., and Pettersson, J. B.
C.: A new approach to in-situ determination of roadside particle emission
factors of individual vehicles under conventional driving conditions, Atmos.
Environ., 43, 2481–2488, https://doi.org/10.1016/j.atmosenv.2009.01.041,
2009.
Hallquist, Å. M., Jerksjö, M., Fallgren, H., Westerlund, J., and Sjödin, Å.: Particle and gaseous emissions from individual diesel and CNG buses, Atmos. Chem. Phys., 13, 5337–5350, https://doi.org/10.5194/acp-13-5337-2013, 2013.
HBEFA3.3: available online at: http://www.hbefa.net, last access: 10 May
2019.
Hallquist, M., Wenger, J. C., Baltensperger, U., Rudich, Y., Simpson, D., Claeys, M., Dommen, J., Donahue, N. M., George, C., Goldstein, A. H., Hamilton, J. F., Herrmann, H., Hoffmann, T., Iinuma, Y., Jang, M., Jenkin, M. E., Jimenez, J. L., Kiendler-Scharr, A., Maenhaut, W., McFiggans, G., Mentel, Th. F., Monod, A., Prévôt, A. S. H., Seinfeld, J. H., Surratt, J. D., Szmigielski, R., and Wildt, J.: The formation, properties and impact of secondary organic aerosol: current and emerging issues, Atmos. Chem. Phys., 9, 5155–5236, https://doi.org/10.5194/acp-9-5155-2009, 2009.
Haugen, M. J., Bishop, G. A., Thiruvengadam, A., and Carder, D. K.:
Evaluation of Heavy-and Medium-Duty On-Road Vehicle Emissions in
California's South Coast Air Basin, Environ. Sci. Technol., 52, 13298–13305,
https://doi.org/10.1021/acs.est.8b03994, 2018.
He, C., Li, J., Ma, Z., Tan, J., and Zhao, L.: High NO2/NOx emissions
downstream of the catalytic diesel particulate filter: An influencing factor
study, J. Environ. Sci.-China, 35, 55–61,
https://doi.org/10.1016/j.jes.2015.02.009, 2015.
He, L., Hu, J., Zhang, S., Wu, Y., Guo, X., Guo, X., Song, J., Zu, L.,
Zheng, X., and Bao, X.: Investigating real-world emissions of China's
heavy-duty diesel trucks: Can SCR effectively mitigate NOx emissions for
highway trucks, Aerosol Air. Qual. Res., 17, 2585–2594, https://doi.org/10.4209/aaqr.2016.12.0531, 2017.
Heeb, N. V., Schmid, P., Kohler, M., Gujer, E., Zennegg, M., Wenger, D.,
Wichser, A., Ulrich, A., Gfeller, U., Honegger, P., Zeyer, K., Emmenegger,
L., Petermann, J. L., Czerwinski, J., Mosimann, T., Kasper, M., and Mayer,
A.: Impact of low- and high-oxidation diesel particulate filters on
genotoxic exhaust constituents, Environ. Sci. Technol., 44, 1078–1084,
https://doi.org/10.1021/es9019222, 2010.
Herner, J. D., Hu, S., Robertson, W. H., Huai, T., Collins, J. F., Dwyer,
H., and Ayala, A.: Effect of advanced aftertreatment for PM and NOx control
on heavy-duty diesel truck emissions, Environ. Sci. Technol., 43, 5928–5933,
https://doi.org/10.1021/es9008294, 2009.
Herner, J. D., Hu, S., Robertson, W. H., Huai, T., Chang, M.-C. O., Rieger,
P., and Ayala, A.: Effect of advanced aftertreatment for PM and NOx
reduction on heavy-duty diesel engine ultrafine particle emissions, Environ.
Sci. Technol., 45, 2413–2419, https://doi.org/10.1021/es102792y, 2011.
Huffman, J. A., Ziemann, P. J., Jayne, J. T., Worsnop, D. R., and Jimenez,
J. L.: Development and characterization of a fast-stepping/scanning
thermodenuder for chemically-resolved aerosol volatility measurements,
Aerosol Sci. Tech., 42, 395–407, https://doi.org/10.1080/02786820802104981,
2008.
Janhäll, S. and Hallquist, M.: A novel method for determination of
size-resolved, submicrometer particle traffic emission factors, Environ.
Sci. Technol., 39, 7609–7615, https://doi.org/10.1021/es048208y, 2005.
Jarvinen, A., Timonen, H., Karjalainen, P., Bloss, M., Simonen, P.,
Saarikoski, S., Kuuluvainen, H., Kalliokoski, J., Dal Maso, M., Niemi, J.
V., Keskinen, J., and Ronklo, T.: Particle emissions of Euro VI, EEV and
retrofitted EEV city buses in real traffic, Environ. Pollut., 250, 708–716,
https://doi.org/10.1016/j.envpol.2019.04.033, 2019.
Jiang, Y., Yang, J., Cocker III, D., Karavalakis, G., Johnson, K. C., and
Durbin, T. D.: Characterizing emission rates of regulated pollutants from
model year 2012+ heavy-duty diesel vehicles equipped with DPF and SCR
systems, Sci. Total Environ., 619–620, 765–771,
https://doi.org/10.1016/j.scitotenv.2017.11.120, 2018.
Kittelson, D. B., Watts, W. F., and Johnson, J.: Diesel aerosol sampling methodology – CRC E-43: final report, University of Minnesota, Report for the Coordinating Research Council, available at: https://www.crcao.com (last access: 3 February 2020), 2002.
Ko, J., Myung, C. L., and Park, S.: Impacts of ambient temperature, DPF
regeneration, and traffic congestion on NOx emissions from a Euro
6-compliant diesel vehicle equipped with an LNT under real-world driving
conditions, Atmos. Environ., 200, 1–14,
https://doi.org/10.1016/j.atmosenv.2018.11.029, 2019.
Kousoulidou, M., Ntziachristos, L., Mellios, G., and Samaras, Z.:
Road-transport emission projections to 2020 in European urban environments,
Atmos. Environ., 42, 7465–7475,
https://doi.org/10.1016/j.atmosenv.2008.06.002, 2008.
Kozawa, K. H., Park, S. S., Mara, S. L., and Herner, J. D.: Verifying
emission reductions from heavy-duty diesel trucks operating on Southern
California freeways, Environ. Sci. Technol., 48, 1475–1483,
https://doi.org/10.1021/es4044177, 2014.
Lau, C. F., Rakowska, A., Townsend, T., Brimblecombe, P., Chan, T. L., Yam,
Y. S., Mocnik, G., and Ning, Z.: Evaluation of diesel fleet emissions and
control policies from plume chasing measurements of on-road vehicles, Atmos.
Environ., 122, 171–182, https://doi.org/10.1016/j.atmosenv.2015.09.048,
2015.
Le Breton, M., Psichoudaki, M., Hallquist, M., Watne, Å., Lutz, A., and
Hallquist, Å.: Application of a FIGAERO ToF CIMS for on-line
characterization of real-world fresh and aged particle emissions from buses,
Aerosol Sci. Tech., 53, 244–259, https://doi.org/10.1080/02786826.2019.1566592,
2019.
Li, X., Dallmann, T. R., May, A. A., Stanier, C. O., Grieshop, A. P.,
Lipsky, E. M., Robinson, A. L., and Presto, A. A.: Size distribution of
vehicle emitted primary particles measured in a traffic tunnel, Atmos.
Environ., 191, 9–18, https://doi.org/10.1016/j.atmosenv.2018.07.052, 2018.
Liu, Q., Hallquist, Å. M., Fallgren, H., Jerksjö, M.,
Jutterström, S., Salberg, H., Hallquist, M., Le Breton, M., Pei, X., and
Pathak, R. K.: Roadside assessment of a modern city bus fleet: Gaseous and
particle emissions, Atmos. Environ., 3, 100044,
https://doi.org/10.1016/j.aeaoa.2019.100044, 2019.
Liu, T., Zhou, L., Liu, Q., Lee, B. P., Yao, D., Lu, H., Lyu, X., Guo, H., and Chan, C. K.: Secondary organic aerosol formation from urban roadside air in Hong Kong, Environ. Sci. Technol., 53, 3001–3009, https://doi.org/10.1021/acs.est.8b06587, 2019.
Liu, Z. G., Vasys, V. N., Dettmann, M. E., Schauer, J. J., Kittelson, D. B.,
and Swanson, J.: Comparison of Strategies for the Measurement of Mass
Emissions from Diesel Engines Emitting Ultra-Low Levels of Particulate
Matter, Aerosol Sci. Tech., 43, 1142–1152,
https://doi.org/10.1080/02786820903219035, 2009.
Lv, Y., Li, X., Xu, T. T., Cheng, T. T., Yang, X., Chen, J. M., Iinuma, Y., and Herrmann, H.: Size distributions of polycyclic aromatic hydrocarbons in urban atmosphere: sorption mechanism and source contributions to respiratory deposition, Atmos. Chem. Phys., 16, 2971–2983, https://doi.org/10.5194/acp-16-2971-2016, 2016.
Mahmoudzadeh Andwari, A., Pesiridis, A., Esfahanian, V., Salavati-Zadeh, A.,
Karvountzis-Kontakiotis, A., and Muralidharan, V.: A comparative study of
the effect of turbo compounding and ORC waste heat recovery systems on the
performance of a turbocharged heavy-duty diesel engine, Energies, 10, 1087,
https://doi.org/10.3390/en10081087, 2017.
Manigrasso, M., Vernale, C., and Avino, P.: Traffic aerosol lobar doses
deposited in the human respiratory system, Environ. Sci. Pollut. R.,
24, 13866–13873, https://doi.org/10.1007/s11356-015-5666-1, 2017.
Maricq, M. M.: Chemical characterization of particulate emissions from
diesel engines: A review, J. Aerosol Sci., 38, 1079–1118,
https://doi.org/10.1016/j.jaerosci.2007.08.001, 2007.
Maricq, M. M. and Ning, X.: The effective density and fractal dimension of
soot particles from premixed flames and motor vehicle exhaust, J. Aerosol
Sci., 35, 1251–1274, https://doi.org/10.1016/j.jaerosci.2004.05.002, 2004.
Martinet, S., Liu, Y., Louis, C., Tassel, P., Perret, P., Chaumond, A., and
Andre, M.: Euro 6 Unregulated Pollutant Characterization and Statistical
Analysis of After-Treatment Device and Driving-Condition Impact on Recent
Passenger-Car Emissions, Environ. Sci. Technol., 51, 5847–5855,
https://doi.org/10.1021/acs.est.7b00481, 2017.
Martini, G., Giechaskiel, B., and Dilara, P.: Future European emission
standards for vehicles: the importance of the UN-ECE Particle Measurement
Programme, Biomarkers, 14, 29–33,
https://doi.org/10.1080/13547500902965393, 2009.
May, A. A., Nguyen, N. T., Presto, A. A., Gordon, T. D., Lipsky, E. M.,
Karve, M., Gutierrez, A., Robertson, W. H., Zhang, M., Brandow, C., Chang,
O., Chen, S. Y., Cicero-Fernandez, P., Dinkins, L., Fuentes, M., Huang, S.
M., Ling, R., Long, J., Maddox, C., Massetti, J., McCauley, E., Miguel, A.,
Na, K., Ong, R., Pang, Y. B., Rieger, P., Sax, T., Truong, T., Vo, T.,
Chattopadhyay, S., Maldonado, H., Maricq, M. M., and Robinson, A. L.: Gas-
and particle-phase primary emissions from in-use, on-road gasoline and
diesel vehicles, Atmos. Environ., 88, 247–260,
https://doi.org/10.1016/j.atmosenv.2014.01.046, 2014.
Mendoza-Villafuerte, P., Suarez-Bertoa, R., Giechaskiel, B., Riccobono, F.,
Bulgheroni, C., Astorga, C., and Perujo, A.: NOx, NH3, N2O and PN real
driving emissions from a Euro VI heavy-duty vehicle. Impact of regulatory
on-road test conditions on emissions, Sci. Total Environ., 609, 546–555,
https://doi.org/10.1016/j.scitotenv.2017.07.168, 2017.
Moody, A. and Tate, J.: In Service CO2 and NOX Emissions of Euro 6/VI Cars,
Light-and Heavy-dutygoods Vehicles in Real London driving: Taking the Road
into the Laboratory, Journal of Earth Sciences and Geotechnical Engineering,
7, 51–62, 2017.
Pirjola, L., Dittrich, A., Niemi, J. V., Saarikoski, S., Timonen, H.,
Kuuluvainen, H., Jarvinen, A., Kousa, A., Ronkko, T., and Hillamo, R.:
Physical and Chemical Characterization of Real-World Particle Number and
Mass Emissions from City Buses in Finland, Environ. Sci. Technol., 50,
294–304, https://doi.org/10.1021/acs.est.5b04105, 2016.
Pirjola, L., Niemi, J. V., Saarikoski, S., Aurela, M., Enroth, J., Carbone,
S., Saarnio, K., Kuuluvainen, H., Kousa, A., Ronkko, T., and Hillamo, R.:
Physical and chemical characterization of urban winter-time aerosols by
mobile measurements in Helsinki, Finland, Atmos. Environ., 158, 60–75,
https://doi.org/10.1016/j.atmosenv.2017.03.028, 2017.
Preble, C., Cados, T., Harley, R., and Kirchstetter, T.: Impacts of Aging Emission Control Systems on In-Use Heavy-Duty Diesel Truck Emission Rates, American Geophysical Union Fall Meeting, 11–15 December 2017, New Orleans, Louisiana, 2017.
Preble, C. V., Dallmann, T. R., Kreisberg, N. M., Hering, S. V., Harley, R.
A., and Kirchstetter, T. W.: Effects of Particle Filters and Selective
Catalytic Reduction on Heavy-Duty Diesel Drayage Truck Emissions at the Port
of Oakland, Environ. Sci. Technol., 49, 8864–8871,
https://doi.org/10.1021/acs.est.5b01117, 2015.
Preble, C. V., Cados, T. E., Harley, R. A., and Kirchstetter, T. W.: In-Use
Performance and Durability of Particle Filters on Heavy-Duty Diesel Trucks,
Environ. Sci. Technol., 52, 11913–11921,
https://doi.org/10.1021/acs.est.8b02977, 2018.
Quiros, D. C., Hu, S. H., Hu, S. S., Lee, E. S., Sardar, S., Wang, X. L.,
Olfert, J. S., Jung, H. J. S., Zhu, Y. F., and Huai, T.: Particle effective
density and mass during steady-state operation of GDI, PFI, and diesel
passenger cars, J. Aerosol Sci., 83, 39–54,
https://doi.org/10.1016/j.jaerosci.2014.12.004, 2015.
Quiros, D. C., Thiruvengadam, A., Pradhan, S., Besch, M., Thiruvengadam, P.,
Demirgok, B., Carder, D., Oshinuga, A., Huai, T., and Hu, S.: Real-world
emissions from modern heavy-duty diesel, natural gas, and hybrid diesel
trucks operating along major California freight corridors, Emission Control
Science and Technology, 2, 156–172,
https://doi.org/10.1007/s40825-016-0044-0, 2016.
Quiros, D. C., Smith, J. D., Ham, W. A., Robertson, W. H., Huai, T., Ayala,
A., and Hu, S.: Deriving fuel-based emission factor thresholds to interpret
heavy-duty vehicle roadside plume measurements, J. Air Waste Manage.,
68, 969–987, https://doi.org/10.1080/10962247.2018.1460637, 2018.
Rexeis, M., Röck, M., and Hausberger, S.: Comparison of Fuel Consumption
and Emissions for Representative Heavy-Duty Vehicles in Europe, Trans. Res. B., The National Academies of Sciences, Engineering, and Medicine, Washington, DC, 63 pp., 2018.
Ristimaki, J., Vaaraslahti, K., Lappi, M., and Keskinen, J.: Hydrocarbon
condensation in heavy-duty diesel exhaust, Environ. Sci. Technol., 41,
6397–6402, https://doi.org/10.1021/es0624319, 2007.
Robinson, A. L., Donahue, N. M., Shrivastava, M. K., Weitkamp, E. A., Sage,
A. M., Grieshop, A. P., Lane, T. E., Pierce, J. R., and Pandis, S. N.:
Rethinking organic aerosols: semivolatile emissions and photochemical aging,
Science, 315, 1259–1262, https://doi.org/10.1126/science.1133061, 2007.
Rymaniak, L., Ziolkowski, A., and Gallas, D.: Particle number and
particulate mass emissions of heavy-duty vehicles in real operating
conditions, MATEC Web of Conferences, 00025, https://doi.org/10.1051/matecconf/201711800025, 2017.
Sakurai, H., Park, K., McMurry, P. H., Zarling, D. D., Kittelson, D. B., and
Ziemann, P. J.: Size-dependent mixing characteristics of volatile and
nonvolatile components in diesel exhaust aerosols, Environ. Sci. Technol.,
37, 5487–5495, https://doi.org/10.1021/es034362t, 2003a.
Sakurai, H., Tobias, H. J., Park, K., Zarling, D., Docherty, K. S.,
Kittelson, D. B., McMurry, P. H., and Ziemann, P. J.: On-line measurements
of diesel nanoparticle composition and volatility, Atmos. Environ., 37,
1199–1210, https://doi.org/10.1016/S1352-2310(02)01017-8, 2003b.
Smit, R., Keramydas, C., Ntziachristos, L., Lo, T. S., Ng, K. L., Wong, H.
L. A., and Wong, C.: Evaluation of real-world gaseous emissions performance
of SCR and DPF bus retrofits, Environ. Sci. Technol., 53, 4440–4449,
https://doi.org/10.1021/acs.est.8b07223, 2019.
Tan, Y., Henderick, P., Yoon, S., Herner, J., Montes, T., Boriboonsomsin,
K., Johnson, K., Scora, G., Sandez, D., and Durbin, T. D.: On-Board
Sensor-Based NOx Emissions from Heavy-Duty Diesel Vehicles, Environ. Sci.
Technol., 53, 5504–5511, https://doi.org/10.1021/acs.est.8b07048, 2019.
Thiruvengadam, A., Besch, M. C., Carder, D. K., Oshinuga, A., and Gautam,
M.: Influence of real-world engine load conditions on nanoparticle emissions
from a DPF and SCR equipped heavy-duty diesel engine, Environ. Sci.
Technol., 46, 1907–1913, https://doi.org/10.1021/es203079n, 2012.
Thiruvengadam, A., Besch, M. C., Thiruvengadam, P., Pradhan, S., Carder, D.,
Kappanna, H., Gautam, M., Oshinuga, A., Hogo, H., and Miyasato, M.: Emission
rates of regulated pollutants from current technology heavy-duty diesel and
natural gas goods movement vehicles, Environ. Sci. Technol., 49, 5236–5244,
https://doi.org/10.1021/acs.est.5b00943, 2015.
Vaaraslahti, K., Virtanen, A., Ristimaki, J., and Keskinen, J.: Nucleation
mode formation in heavy-duty diesel exhaust with and without a particulate
filter, Environ. Sci. Technol., 38, 4884–4890,
https://doi.org/10.1021/es0353255, 2004.
Van Setten, B. A., Makkee, M., and Moulijn, J. A.: Science and technology of
catalytic diesel particulate filters, Cataly. Rev., 43, 489–564,
https://doi.org/10.1081/CR-120001810, 2001.
Vojtisek-Lom, M., Pechout, M., Dittrich, L., Beranek, V., Kotek, M.,
Schwarz, J., Vodicka, P., Milcova, A., Rossnerova, A., Ambroz, A., and
Topinka, J.: Polycyclic aromatic hydrocarbons (PAH) and their genotoxicity
in exhaust emissions from a diesel engine during extended low-load operation
on diesel and biodiesel fuels, Atmos. Environ., 109, 9–18,
https://doi.org/10.1016/j.atmosenv.2015.02.077, 2015.
Wang, T., Quiros, D. C., Thiruvengadam, A., Pradhan, S., Hu, S., Huai, T.,
Lee, E. S., and Zhu, Y.: Total Particle Number Emissions from Modern Diesel,
Natural Gas, and Hybrid Heavy-Duty Vehicles During On-Road Operation,
Environ. Sci. Technol., 51, 6990–6998,
https://doi.org/10.1021/acs.est.6b06464, 2017.
Watne, Å. K., Psichoudaki, M., Ljungström, E., Le Breton, M., Hallquist, M.,
Jerksjö, M., Fallgren, H., Jutterström, S., and Hallquist, Å. M.: Fresh and
Oxidized Emissions from In-Use Transit Buses Running on Diesel, Biodiesel,
and CNG, Environ. Sci. Technol., 52, 7720–7728,
https://doi.org/10.1021/acs.est.8b01394, 2018.
Williams, M. and Minjares, R.: A technical summary of Euro 6/VI vehicle
emission standards, International Council for Clean Transportation (ICCT),
Washington, DC, available at: https://theicct.org/sites/default/files/publications/ICCT_Euro6-VI_briefing_june2016.pdf (last access: 10 July 2017), 2016.
Zavala, M., Molina, L. T., Yacovitch, T. I., Fortner, E. C., Roscioli, J. R., Floerchinger, C., Herndon, S. C., Kolb, C. E., Knighton, W. B., Paramo, V. H., Zirath, S., Mejía, J. A., and Jazcilevich, A.: Emission factors of black carbon and co-pollutants from diesel vehicles in Mexico City, Atmos. Chem. Phys., 17, 15293–15305, https://doi.org/10.5194/acp-17-15293-2017, 2017.
Zhang, S. J., Wu, Y., Liu, H., Huang, R. K., Yang, L. H. Z., Li, Z. H., Fu,
L. X., and Hao, J. M.: Real-world fuel consumption and CO2 emissions of
urban public buses in Beijing, Appl. Energ., 113, 1645–1655,
https://doi.org/10.1016/j.apenergy.2013.09.017, 2014.
Zheng, Z., Johnson, K. C., Liu, Z., Durbin, T. D., Hu, S., Huai, T.,
Kittelson, D. B., and Jung, H. S.: Investigation of solid particle number
measurement: Existence and nature of sub-23 nm particles under PMP
methodology, J. Aerosol Sci., 42, 883–897,
https://doi.org/10.1016/j.jaerosci.2011.08.003, 2011.
Zheng, Z., Durbin, T. D., Xue, J., Johnson, K. C., Li, Y., Hu, S., Huai, T.,
Ayala, A., Kittelson, D. B., and Jung, H. S.: Comparison of particle mass
and solid particle number (SPN) emissions from a heavy-duty diesel vehicle
under on-road driving conditions and a standard testing cycle, Environ. Sci.
Technol., 48, 1779–1786, https://doi.org/10.1021/es403578b, 2014.
Zheng, Z. Q., Durbin, T. D., Karavalakis, G., Johnson, K. C., Chaudhary, A.,
Cocker, D. R., Herner, J. D., Robertson, W. H., Huai, T., Ayala, A.,
Kittelson, D. B., and Jung, H. S.: Nature of Sub-23-nm Particles Downstream
of the European Particle Measurement Programme (PMP)-Compliant System: A
Real-Time Data Perspective, Aerosol Sci. Tech., 46, 886–896,
https://doi.org/10.1080/02786826.2012.679167, 2012.
Zhu, Y. F., Hinds, W. C., Kim, S., Shen, S., and Sioutas, C.: Study of
ultrafine particles near a major highway with heavy-duty diesel traffic,
Atmos. Environ., 36, 4323–4335,
https://doi.org/10.1016/S1352-2310(02)00354-0, 2002.
Short summary
The study reports the transition in the atmospheric emission of particles and gases from on-road heavy-duty trucks (HDTs) caused by the modernisation of the fleet. We measured particle number (PN), particle mass (PM), black carbon (BC), nitrogen oxides (NOx), carbon monoxide (CO), hydrocarbon (HC), particle size distributions, and volatility in the plumes of 556 individual HDTs. Significant but different changes in emissions were evident for various pollutants with respect to emission standards.
The study reports the transition in the atmospheric emission of particles and gases from on-road...
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