Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2859-2023
© Author(s) 2023. 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-23-2859-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Mar 2023
Research article |
| 02 Mar 2023
| 02 Mar 2023
Comparison of aqueous secondary organic aerosol (aqSOA) product distributions from guaiacol oxidation by non-phenolic and phenolic methoxybenzaldehydes as photosensitizers in the absence and presence of ammonium nitrate
Beatrix Rosette Go Mabato
School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China
City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
Yong Jie Li
Department of Civil and Environmental Engineering, and Centre for Regional Oceans, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR 999078, China
Dan Dan Huang
State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China
Yalin Wang
Department of Civil and Environmental Engineering, and Centre for Regional Oceans, Faculty of Science and Technology, University of Macau, Taipa, Macau SAR 999078, China
School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China
City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
Low-Carbon and Climate Impact Research Centre of School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
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Zhancong Liang, Yangxi Chu, Masao Gen, and Chak K. Chan
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Shang Gao, Mona Kurppa, Chak K. Chan, and Keith Ngan
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Beatrix Rosette Go Mabato, Yan Lyu, Yan Ji, Yong Jie Li, Dan Dan Huang, Xue Li, Theodora Nah, Chun Ho Lam, and Chak K. Chan
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Shijie Liu, Dandan Huang, Yiqian Wang, Si Zhang, Xiaodi Liu, Can Wu, Wei Du, and Gehui Wang
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Yuliang Liu, Wei Nie, Yuanyuan Li, Dafeng Ge, Chong Liu, Zhengning Xu, Liangduo Chen, Tianyi Wang, Lei Wang, Peng Sun, Ximeng Qi, Jiaping Wang, Zheng Xu, Jian Yuan, Chao Yan, Yanjun Zhang, Dandan Huang, Zhe Wang, Neil M. Donahue, Douglas Worsnop, Xuguang Chi, Mikael Ehn, and Aijun Ding
Atmos. Chem. Phys., 21, 14789–14814, https://doi.org/10.5194/acp-21-14789-2021, https://doi.org/10.5194/acp-21-14789-2021, 2021
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Xi Cheng, Qi Chen, Yong Jie Li, Yan Zheng, Keren Liao, and Guancong Huang
Atmos. Chem. Phys., 21, 12005–12019, https://doi.org/10.5194/acp-21-12005-2021, https://doi.org/10.5194/acp-21-12005-2021, 2021
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Ru-Jin Huang, Yao He, Jing Duan, Yongjie Li, Qi Chen, Yan Zheng, Yang Chen, Weiwei Hu, Chunshui Lin, Haiyan Ni, Wenting Dai, Junji Cao, Yunfei Wu, Renjian Zhang, Wei Xu, Jurgita Ovadnevaite, Darius Ceburnis, Thorsten Hoffmann, and Colin D. O'Dowd
Atmos. Chem. Phys., 20, 9101–9114, https://doi.org/10.5194/acp-20-9101-2020, https://doi.org/10.5194/acp-20-9101-2020, 2020
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Jia Yin Sun, Cheng Wu, Dui Wu, Chunlei Cheng, Mei Li, Lei Li, Tao Deng, Jian Zhen Yu, Yong Jie Li, Qianni Zhou, Yue Liang, Tianlin Sun, Lang Song, Peng Cheng, Wenda Yang, Chenglei Pei, Yanning Chen, Yanxiang Cen, Huiqing Nian, and Zhen Zhou
Atmos. Chem. Phys., 20, 2445–2470, https://doi.org/10.5194/acp-20-2445-2020, https://doi.org/10.5194/acp-20-2445-2020, 2020
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Atmospheric aging processes (AAPs) can lead to black carbon (BC) light absorption enhancement (Eabs), which remained poorly characterized at a long timescale. By applying a newly developed approach, the minimum R squared method (MRS), this study investigated the temporal variations of BC Eabs at both seasonal and diel scales in an urban environment. Factors affecting the temporal variability of BC Eabs were also analyzed, including variability in emission sources and various types of AAPs.
Liyuan Zhou, Åsa M. Hallquist, Mattias Hallquist, Christian M. Salvador, Samuel M. Gaita, Åke Sjödin, Martin Jerksjö, Håkan Salberg, Ingvar Wängberg, Johan Mellqvist, Qianyun Liu, Berto P. Lee, and Chak K. Chan
Atmos. Chem. Phys., 20, 1701–1722, https://doi.org/10.5194/acp-20-1701-2020, https://doi.org/10.5194/acp-20-1701-2020, 2020
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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.
Mingjin Tang, Chak K. Chan, Yong Jie Li, Hang Su, Qingxin Ma, Zhijun Wu, Guohua Zhang, Zhe Wang, Maofa Ge, Min Hu, Hong He, and Xinming Wang
Atmos. Chem. Phys., 19, 12631–12686, https://doi.org/10.5194/acp-19-12631-2019, https://doi.org/10.5194/acp-19-12631-2019, 2019
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Hygroscopicity is one of the most important properties of aerosol particles, and a number of experimental techniques, which differ largely in principles, configurations and cost, have been developed to investigate hygroscopic properties of atmospherically relevant particles. Our paper provides a comprehensive and critical review of available techniques for aerosol hygroscopicity studies.
Carly L. Reddington, Luke Conibear, Christoph Knote, Ben J. Silver, Yong J. Li, Chak K. Chan, Steve R. Arnold, and Dominick V. Spracklen
Atmos. Chem. Phys., 19, 11887–11910, https://doi.org/10.5194/acp-19-11887-2019, https://doi.org/10.5194/acp-19-11887-2019, 2019
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We use a high-resolution model over South and East Asia to explore air quality and human health benefits of eliminating emissions from six man-made pollution sources. We find that preventing emissions from either residential energy use, industry, or open biomass burning yields the largest reductions in ground-level particulate matter pollution and its associated disease burden over this region. We also summarize previous estimates of the source-specific disease burden in China and India.
Zhujie Li, Haobo Tan, Jun Zheng, Li Liu, Yiming Qin, Nan Wang, Fei Li, Yongjie Li, Mingfu Cai, Yan Ma, and Chak K. Chan
Atmos. Chem. Phys., 19, 11669–11685, https://doi.org/10.5194/acp-19-11669-2019, https://doi.org/10.5194/acp-19-11669-2019, 2019
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Comprehensive field measurements were conducted to investigate aerosol compositions, optical properties, source origins, and radiative forcing effects in Guangzhou. Particulate brown carbon (BrC) light absorption was differentiated from that of black carbon. BrC was mostly due to primary emissions, such as straw burning, rather than secondary formation. BrC may cause ∼2.3 W m−2 radiative forcing at the top of the atmosphere and contribute to ∼15.8 % of the aerosol warming effect.
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 developed the relationship between the chemical and optical characteristics of BrC in Guangzhou, China. We determined wavelength-dependent mass absorption coefficients of organic aerosol with different sources. The BrC absorption coefficient was associated with N-containing ion fragments and depended on their degrees of unsaturation/cyclization and oxygenation.
Michael Le Breton, Åsa M. Hallquist, Ravi Kant Pathak, David Simpson, Yujue Wang, John Johansson, Jing Zheng, Yudong Yang, Dongjie Shang, Haichao Wang, Qianyun Liu, Chak Chan, Tao Wang, Thomas J. Bannan, Michael Priestley, Carl J. Percival, Dudley E. Shallcross, Keding Lu, Song Guo, Min Hu, and Mattias Hallquist
Atmos. Chem. Phys., 18, 13013–13030, https://doi.org/10.5194/acp-18-13013-2018, https://doi.org/10.5194/acp-18-13013-2018, 2018
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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.
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.
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.
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.
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.
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.
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.
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
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
Related subject area
Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Photoenhanced sulfate formation by the heterogeneous uptake of SO2 on non-photoactive mineral dust
Comparison of water-soluble and water-insoluble organic compositions attributing to different light absorption efficiency between residential coal and biomass burning emissions
Suppressed atmospheric chemical aging of cooking organic aerosol particles in wintertime conditions
Formation and loss of light absorbance by phenolic aqueous SOA by ●OH and an organic triplet excited state
Technical Note: A technique to convert NO2 to NO2− with S(IV) and its application to measuring nitrate photolysis
Distribution, chemical, and molecular composition of high and low molecular weight humic-like substances in ambient aerosols
Desorption lifetimes and activation energies influencing gas–surface interactions and multiphase chemical kinetics
Molecular analysis of secondary organic aerosol and brown carbon from the oxidation of indole
Secondary organic aerosol formed by Euro 5 gasoline vehicle emissions: chemical composition and gas-to-particle phase partitioning
Characterization of the particle size distribution, mineralogy and Fe mode of occurrence of dust-emitting sediments across the Mojave Desert, California, USA
Assessment of the contribution of residential waste burning to ambient PM10 concentrations in Hungary and Romania
Source differences in the components and cytotoxicity of PM2.5 from automobile exhaust, coal combustion, and biomass burning contributing to urban aerosol toxicity
Chamber studies of OH + dimethyl sulfoxide and dimethyl disulfide: insights into the dimethyl sulfide oxidation mechanism
Low-temperature ice nucleation of sea spray and secondary marine aerosols under cirrus cloud conditions
Probing Iceland's Dust-Emitting Sediments: Particle Size Distribution, Mineralogy, Cohesion, Fe Mode of Occurrence, and Reflectance Spectra Signatures
Temperature-dependent aqueous OH kinetics of C2–C10 linear and terpenoid alcohols and diols: new rate coefficients, structure–activity relationship, and atmospheric lifetimes
A possible unaccounted source of nitrogen-containing compound formation in aerosols: amines reacting with secondary ozonides
Measurement Report: Effects of transition metal ions on the optical properties of humic-like substances revealing structural preference
Seasonal variations in photooxidant formation and light absorption in aqueous extracts of ambient particles
Variability in sediment particle size, mineralogy, and Fe mode of occurrence across dust-source inland drainage basins: the case of the lower Drâa Valley, Morocco
Gas–particle partitioning of toluene oxidation products: an experimental and modeling study
Chemically speciated air pollutant emissions from open burning of household solid waste from South Africa
Bulk and molecular-level composition of primary organic aerosol from wood, straw, cow dung, and plastic burning
Volatile oxidation products and secondary organosiloxane aerosol from D5 + OH at varying OH exposures
Molecular fingerprints and health risks of smoke from home-use incense burning
High enrichment of heavy metals in fine particulate matter through dust aerosol generation
Production of ice-nucleating particles (INPs) by fast-growing phytoplankton
Technical note: In situ measurements and modelling of the oxidation kinetics in films of a cooking aerosol proxy using a quartz crystal microbalance with dissipation monitoring (QCM-D)
Contrasting impacts of humidity on the ozonolysis of monoterpenes: insights into the multi-generation chemical mechanism
Quantifying the seasonal variations in and regional transport of PM2.5 in the Yangtze River Delta region, China: characteristics, sources, and health risks
Opinion: Atmospheric multiphase chemistry – past, present, and future
Distinct photochemistry in glycine particles mixed with different atmospheric nitrate salts
Effects of storage conditions on the molecular-level composition of organic aerosol particles
Characterization of gas and particle emissions from open burning of household solid waste from South Africa
Chemically distinct particle-phase emissions from highly controlled pyrolysis of three wood types
Predicting photooxidant concentrations in aerosol liquid water based on laboratory extracts of ambient particles
Physicochemical characterization of free troposphere and marine boundary layer ice-nucleating particles collected by aircraft in the eastern North Atlantic
Large differences of highly oxygenated organic molecules (HOMs) and low-volatile species in secondary organic aerosols (SOAs) formed from ozonolysis of β-pinene and limonene
Impact of fossil and non-fossil fuel sources on the molecular compositions of water-soluble humic-like substances in PM2.5 at a suburban site of Yangtze River Delta, China
Technical note: Improved synthetic routes to cis- and trans-(2-methyloxirane-2,3-diyl)dimethanol (cis- and trans-β-isoprene epoxydiol)
Technical note: Intercomparison study of the elemental carbon radiocarbon analysis methods using synthetic known samples
Chemical evolution of primary and secondary biomass burning aerosols during daytime and nighttime
Formation of highly oxygenated organic molecules from the oxidation of limonene by OH radical: significant contribution of H-abstraction pathway
Measurement report: Atmospheric aging of combustion-derived particles – impact on stable free radical concentration and its ability to produce reactive oxygen species in aqueous media
Photoaging of phenolic secondary organic aerosol in the aqueous phase: evolution of chemical and optical properties and effects of oxidants
An intercomparison study of four different techniques for measuring the chemical composition of nanoparticles
Simultaneous formation of sulfate and nitrate via co-uptake of SO2 and NO2 by aqueous NaCl droplets: combined effect of nitrate photolysis and chlorine chemistry
Photo-induced shrinking of aqueous glycine aerosol droplets
Sulfate formation via aerosol-phase SO2 oxidation by model biomass burning photosensitizers: 3,4-dimethoxybenzaldehyde, vanillin and syringaldehyde using single-particle mixing-state analysis
Yields and molecular composition of gas-phase and secondary organic aerosol from the photooxidation of the volatile consumer product benzyl alcohol: formation of highly oxygenated and hydroxy nitro-aromatic compounds
Wangjin Yang, Jiawei Ma, Hongxing Yang, Fu Li, and Chong Han
Atmos. Chem. Phys., 24, 6757–6768, https://doi.org/10.5194/acp-24-6757-2024, https://doi.org/10.5194/acp-24-6757-2024, 2024
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We provide evidence that light enhances the conversion of SO2 to sulfates on non-photoactive mineral dust, where triplet states of SO2 (3SO2) can act as a pivotal trigger to generate sulfates. Photochemical sulfate formation depends on H2O, O2, and basicity of mineral dust. The SO2 photochemistry on non-photoactive mineral dust contributes to sulfates, highlighting previously unknown pathways to better explain the missing sources of atmospheric sulfates.
Lu Zhang, Jin Li, Yaojie Li, Xinlei Liu, Zhihan Luo, Guofeng Shen, and Shu Tao
Atmos. Chem. Phys., 24, 6323–6337, https://doi.org/10.5194/acp-24-6323-2024, https://doi.org/10.5194/acp-24-6323-2024, 2024
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Brown carbon (BrC) is related to radiative forcing and climate change. The BrC fraction from residential coal and biomass burning emissions, which were the major source of BrC, was characterized at the molecular level. The CHOS aromatic compounds explained higher light absorption efficiencies of biomass burning emissions compared to coal. The unique formulas of coal combustion aerosols were characterized by higher unsaturated compounds, and such information could be used for source appointment.
Wenli Liu, Longkun He, Yingjun Liu, Keren Liao, Qi Chen, and Mikinori Kuwata
Atmos. Chem. Phys., 24, 5625–5636, https://doi.org/10.5194/acp-24-5625-2024, https://doi.org/10.5194/acp-24-5625-2024, 2024
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Cooking is a major source of particles in urban areas. Previous studies demonstrated that the chemical lifetimes of cooking organic aerosols (COAs) were much shorter (~minutes) than the values reported by field observations (~hours). We conducted laboratory experiments to resolve the discrepancy by considering suppressed reactivity under low temperature. The parameterized k2–T relationships and observed surface temperature data were used to estimate the chemical lifetimes of COA particles.
Stephanie Arciva, Lan Ma, Camille Mavis, Chrystal Guzman, and Cort Anastasio
Atmos. Chem. Phys., 24, 4473–4485, https://doi.org/10.5194/acp-24-4473-2024, https://doi.org/10.5194/acp-24-4473-2024, 2024
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We measured changes in light absorption during the aqueous oxidation of six phenols with hydroxyl radical (●OH) or an organic triplet excited state (3C*). All the phenols formed light-absorbing secondary brown carbon (BrC), which then decayed with continued oxidation. Extrapolation to ambient conditions suggest ●OH is the dominant sink of secondary phenolic BrC in fog/cloud drops, while 3C* controls the lifetime of this light absorption in particle water.
Aaron Lieberman, Julietta Picco, Murat Onder, and Cort Anastasio
Atmos. Chem. Phys., 24, 4411–4419, https://doi.org/10.5194/acp-24-4411-2024, https://doi.org/10.5194/acp-24-4411-2024, 2024
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We developed a method that uses aqueous S(IV) to quantitatively convert NO2 to NO2−, which allows both species to be quantified using the Griess method. As an example of the utility of the method, we quantified both photolysis channels of nitrate, with and without a scavenger for hydroxyl radical (·OH). The results show that without a scavenger, ·OH reacts with nitrite to form nitrogen dioxide, suppressing the apparent quantum yield of NO2− and enhancing that of NO2.
Xingjun Fan, Ao Cheng, Xufang Yu, Tao Cao, Dan Chen, Wenchao Ji, Yongbing Cai, Fande Meng, Jianzhong Song, and Ping'an Peng
Atmos. Chem. Phys., 24, 3769–3783, https://doi.org/10.5194/acp-24-3769-2024, https://doi.org/10.5194/acp-24-3769-2024, 2024
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Molecular-level characteristics of high molecular weight (HMW) and low MW (LMW) humic-like substances (HULIS) were comprehensively investigated, where HMW HULIS had larger chromophores and larger molecular size than LMW HULIS and exhibited higher aromaticity and humification. Electrospray ionization high-resolution mass spectrometry revealed more aromatic molecules in HMW HULIS. HMW HULIS had more CHON compounds, while LMW HULIS had more CHO compounds.
Daniel A. Knopf, Markus Ammann, Thomas Berkemeier, Ulrich Pöschl, and Manabu Shiraiwa
Atmos. Chem. Phys., 24, 3445–3528, https://doi.org/10.5194/acp-24-3445-2024, https://doi.org/10.5194/acp-24-3445-2024, 2024
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The initial step of interfacial and multiphase chemical processes involves adsorption and desorption of gas species. This study demonstrates the role of desorption energy governing the residence time of the gas species at the environmental interface. A parameterization is formulated that enables the prediction of desorption energy based on the molecular weight, polarizability, and oxygen-to-carbon ratio of the desorbing chemical species. Its application to gas–particle interactions is discussed.
Feng Jiang, Kyla Siemens, Claudia Linke, Yanxia Li, Yiwei Gong, Thomas Leisner, Alexander Laskin, and Harald Saathoff
Atmos. Chem. Phys., 24, 2639–2649, https://doi.org/10.5194/acp-24-2639-2024, https://doi.org/10.5194/acp-24-2639-2024, 2024
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We investigated the optical properties, chemical composition, and formation mechanisms of secondary organic aerosol (SOA) and brown carbon (BrC) from the oxidation of indole with and without NO2 in the Aerosol Interaction and Dynamics in the Atmosphere (AIDA) simulation chamber. This work is one of the very few to link the optical properties and chemical composition of indole SOA with and without NO2 by simulation chamber experiments.
Evangelia Kostenidou, Baptiste Marques, Brice Temime-Roussel, Yao Liu, Boris Vansevenant, Karine Sartelet, and Barbara D'Anna
Atmos. Chem. Phys., 24, 2705–2729, https://doi.org/10.5194/acp-24-2705-2024, https://doi.org/10.5194/acp-24-2705-2024, 2024
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Secondary organic aerosol (SOA) from gasoline vehicles can be a significant source of particulate matter in urban areas. Here the chemical composition of secondary volatile organic compounds and SOA produced by photo-oxidation of Euro 5 gasoline vehicle emissions was studied. The volatility of the SOA formed was calculated. Except for the temperature and the concentration of the aerosol, additional parameters may play a role in the gas-to-particle partitioning.
Adolfo González-Romero, Cristina González-Flórez, Agnesh Panta, Jesús Yus-Díez, Patricia Córdoba, Andres Alastuey, Natalia Moreno, Melani Hernández-Chiriboga, Konrad Kandler, Martina Klose, Roger N. Clark, Bethany L. Ehlmann, Rebecca N. Greenberger, Abigail M. Keebler, Phil Brodrick, Robert Green, Paul Ginoux, Xavier Querol, and Carlos Pérez García-Pando
EGUsphere, https://doi.org/10.5194/egusphere-2024-434, https://doi.org/10.5194/egusphere-2024-434, 2024
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In this research, we studied the dust-emitting properties of crusts and aeolian ripples from the Mojave Desert. These properties are key to understand the effect of dust upon climate. We found two different playa lakes according to the groundwater regime which implies differences on crusts cohesion state and its mineralogy, which can affect the dust emission potential and properties. We also compare them with Moroccan Sahara crusts and Icelandic top sediments.
András Hoffer, Aida Meiramova, Ádám Tóth, Beatrix Jancsek-Turóczi, Gyula Kiss, Ágnes Rostási, Erika Andrea Levei, Luminita Marmureanu, Attila Machon, and András Gelencsér
Atmos. Chem. Phys., 24, 1659–1671, https://doi.org/10.5194/acp-24-1659-2024, https://doi.org/10.5194/acp-24-1659-2024, 2024
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Specific tracer compounds identified previously in controlled test burnings of different waste types in the laboratory were detected and quantified in ambient PM10 samples collected in five Hungarian and four Romanian settlements. Back-of-the-envelope calculations based on the relative emission factors of individual tracers suggested that the contribution of solid waste burning particulate emissions to ambient PM10 mass concentrations may be as high as a few percent.
Xiao-San Luo, Weijie Huang, Guofeng Shen, Yuting Pang, Mingwei Tang, Weijun Li, Zhen Zhao, Hanhan Li, Yaqian Wei, Longjiao Xie, and Tariq Mehmood
Atmos. Chem. Phys., 24, 1345–1360, https://doi.org/10.5194/acp-24-1345-2024, https://doi.org/10.5194/acp-24-1345-2024, 2024
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PM2.5 are air pollutants threatening health globally, but they are a mixture of chemical compositions from many sources and result in unequal toxicity. Which composition from which source of PM2.5 as the most hazardous object is a question hindering effective pollution control policy-making. With chemical and toxicity experiments, we found automobile exhaust and coal combustion to be priority emissions with higher toxic compositions for precise air pollution control, ensuring public health.
Matthew B. Goss and Jesse H. Kroll
Atmos. Chem. Phys., 24, 1299–1314, https://doi.org/10.5194/acp-24-1299-2024, https://doi.org/10.5194/acp-24-1299-2024, 2024
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The chemistry driving dimethyl sulfide (DMS) oxidation and subsequent sulfate particle formation in the atmosphere is poorly constrained. We oxidized two related compounds (dimethyl sulfoxide and dimethyl disulfide) in the laboratory under varied NOx conditions and measured the gas- and particle-phase products. These results demonstrate that both the OH addition and OH abstraction pathways for DMS oxidation contribute to particle formation via mechanisms that do not involve the SO2 intermediate.
Ryan J. Patnaude, Kathryn A. Moore, Russell J. Perkins, Thomas C. J. Hill, Paul J. DeMott, and Sonia M. Kreidenweis
Atmos. Chem. Phys., 24, 911–928, https://doi.org/10.5194/acp-24-911-2024, https://doi.org/10.5194/acp-24-911-2024, 2024
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In this study we examined the effect of atmospheric aging on sea spray aerosols (SSAs) to form ice and how newly formed secondary marine aerosols (SMAs) may freeze at cirrus temperatures (< −38 °C). Results show that SSAs freeze at different relative humidities (RHs) depending on the temperature and that the ice-nucleating ability of SSA was not hindered by atmospheric aging. SMAs are shown to freeze at high RHs and are likely inefficient at forming ice at cirrus temperatures.
Adolfo González-Romero, Cristina González-Flórez, Agnesh Panta, Jesús Yus-Díez, Patricia Córdoba, Andres Alastuey, Natalia Moreno, Konrad Kandler, Martina Klose, Roger N. Clark, Bethany L. Ehlmann, Rebecca N. Greenberger, Abigail M. Keebler, Phil Brodrick, Robert O. Green, Xavier Querol, and Carlos Pérez García-Pando
EGUsphere, https://doi.org/10.5194/egusphere-2024-157, https://doi.org/10.5194/egusphere-2024-157, 2024
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The knowledge of properties from dust emitted in high latitudes as Iceland (HLD) is scarce. This study focuses on the particle size, mineralogy, cohesion and iron mode of occurrence and reflectance spectra of dust-emitting sediments. Icelandic top sediments have lower cohesion state, coarser particle size, distinctive mineralogy, and threefold bulk Fe content, with a large presence of magnetite compared to Saharan crusts.
Bartłomiej Witkowski, Priyanka Jain, Beata Wileńska, and Tomasz Gierczak
Atmos. Chem. Phys., 24, 663–688, https://doi.org/10.5194/acp-24-663-2024, https://doi.org/10.5194/acp-24-663-2024, 2024
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This article reports the results of the kinetic measurements for the aqueous oxidation of the 29 aliphatic alcohols by hydroxyl radical (OH) at different temperatures. The data acquired and the literature data were used to optimize a model for predicting the aqueous OH reactivity of alcohols and carboxylic acids and to estimate the atmospheric lifetimes of five terpenoic alcohols. The kinetic data provided new insights into the mechanism of aqueous oxidation of aliphatic molecules by the OH.
Junting Qiu, Xinlin Shen, Jiangyao Chen, Guiying Li, and Taicheng An
Atmos. Chem. Phys., 24, 155–166, https://doi.org/10.5194/acp-24-155-2024, https://doi.org/10.5194/acp-24-155-2024, 2024
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We studied reactions of secondary ozonides (SOZs) with amines. SOZs formed from ozonolysis of β-caryophyllene and α-humulene are found to be reactive to ethylamine and methylamine. Products from SOZs with various conformations reacting with the same amine had different functional groups. Our findings indicate that interaction of SOZs with amines in the atmosphere is very complicated, which is potentially a hitherto unrecognized source of N-containing compound formation.
Juanjuan Qin, Leiming Zhang, Yuanyuan Qin, Shaoxuan Shi, Jingnan Li, Zhao Shu, Yuwei Gao, Ting Qi, Jihua Tan, and Xinming Wang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2632, https://doi.org/10.5194/egusphere-2023-2632, 2024
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The present research unveiled that acidity dominants, while transition metal ions harmonize, the light absorption properties of HULIS. Cu2+ has obvious quenching effects on HULIS by complexation, hydrogen substitution, or electrostatic adsorption with aromatic structures of HULIS. Such effects are less pronounced from Mn2+, Ni2+, and Zn2+; Cu2+. Oxidized HULIS might contain electron-donating groups, whereas N-containing compounds might contain electron-withdrawing groups.
Lan Ma, Reed Worland, Laura Heinlein, Chrystal Guzman, Wenqing Jiang, Christopher Niedek, Keith J. Bein, Qi Zhang, and Cort Anastasio
Atmos. Chem. Phys., 24, 1–21, https://doi.org/10.5194/acp-24-1-2024, https://doi.org/10.5194/acp-24-1-2024, 2024
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We measured concentrations of three photooxidants – the hydroxyl radical, triplet excited states of organic carbon, and singlet molecular oxygen – in fine particles collected over a year. Concentrations are highest in extracts of fresh biomass burning particles, largely because they have the highest particle concentrations and highest light absorption. When normalized by light absorption, rates of formation for each oxidant are generally similar for the four particle types we observed.
Adolfo González-Romero, Cristina González-Flórez, Agnesh Panta, Jesús Yus-Díez, Cristina Reche, Patricia Córdoba, Natalia Moreno, Andres Alastuey, Konrad Kandler, Martina Klose, Clarissa Baldo, Roger N. Clark, Zongbo Shi, Xavier Querol, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 23, 15815–15834, https://doi.org/10.5194/acp-23-15815-2023, https://doi.org/10.5194/acp-23-15815-2023, 2023
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The effect of dust emitted from desertic surfaces upon climate and ecosystems depends on size and mineralogy, but data from soil mineral atlases of desert soils are scarce. We performed particle-size distribution, mineralogy, and Fe speciation in southern Morocco. Results show coarser particles with high quartz proportion are near the elevated areas, while in depressed areas, sizes are finer, and proportions of clays and nano-Fe oxides are higher. This difference is important for dust modelling.
Victor Lannuque, Barbara D'Anna, Evangelia Kostenidou, Florian Couvidat, Alvaro Martinez-Valiente, Philipp Eichler, Armin Wisthaler, Markus Müller, Brice Temime-Roussel, Richard Valorso, and Karine Sartelet
Atmos. Chem. Phys., 23, 15537–15560, https://doi.org/10.5194/acp-23-15537-2023, https://doi.org/10.5194/acp-23-15537-2023, 2023
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Large uncertainties remain in understanding secondary organic aerosol (SOA) formation from toluene oxidation. In this study, speciation measurements in gaseous and particulate phases were carried out, providing partitioning and volatility data on individual toluene SOA components at different temperatures. A new detailed oxidation mechanism was developed to improve modeled speciation, and effects of different processes involved in gas–particle partitioning at the molecular scale are explored.
Xiaoliang Wang, Hatef Firouzkouhi, Judith C. Chow, John G. Watson, Steven Sai Hang Ho, Warren Carter, and Alexandra S. M. De Vos
Atmos. Chem. Phys., 23, 15375–15393, https://doi.org/10.5194/acp-23-15375-2023, https://doi.org/10.5194/acp-23-15375-2023, 2023
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Open burning of municipal solid waste emits chemicals that are harmful to the environment. This paper reports source profiles and emission factors for PM2.5 species and acidic/alkali gases from laboratory combustion of 10 waste categories (including plastics and biomass) that represent open burning in South Africa. Results will be useful for health and climate impact assessments, speciated emission inventories, source-oriented dispersion models, and receptor-based source apportionment.
Jun Zhang, Kun Li, Tiantian Wang, Erlend Gammelsæter, Rico K. Y. Cheung, Mihnea Surdu, Sophie Bogler, Deepika Bhattu, Dongyu S. Wang, Tianqu Cui, Lu Qi, Houssni Lamkaddam, Imad El Haddad, Jay G. Slowik, Andre S. H. Prevot, and David M. Bell
Atmos. Chem. Phys., 23, 14561–14576, https://doi.org/10.5194/acp-23-14561-2023, https://doi.org/10.5194/acp-23-14561-2023, 2023
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We conducted burning experiments to simulate various types of solid fuel combustion, including residential burning, wildfires, agricultural burning, cow dung, and plastic bag burning. The chemical composition of the particles was characterized using mass spectrometers, and new potential markers for different fuels were identified using statistical analysis. This work improves our understanding of emissions from solid fuel burning and offers support for refined source apportionment.
Hyun Gu Kang, Yanfang Chen, Yoojin Park, Thomas Berkemeier, and Hwajin Kim
Atmos. Chem. Phys., 23, 14307–14323, https://doi.org/10.5194/acp-23-14307-2023, https://doi.org/10.5194/acp-23-14307-2023, 2023
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D5 is an emerging anthropogenic pollutant that is ubiquitous in indoor and urban environments, and the OH oxidation of D5 forms secondary organosiloxane aerosol (SOSiA). Application of a kinetic box model that uses a volatility basis set (VBS) showed that consideration of oxidative aging (aging-VBS) predicts SOSiA formation much better than using a standard-VBS model. Ageing-dependent parameterization is needed to accurately model SOSiA to assess the implications of siloxanes for air quality.
Kai Song, Rongzhi Tang, Jingshun Zhang, Zichao Wan, Yuan Zhang, Kun Hu, Yuanzheng Gong, Daqi Lv, Sihua Lu, Yu Tan, Ruifeng Zhang, Ang Li, Shuyuan Yan, Shichao Yan, Baoming Fan, Wenfei Zhu, Chak K. Chan, Maosheng Yao, and Song Guo
Atmos. Chem. Phys., 23, 13585–13595, https://doi.org/10.5194/acp-23-13585-2023, https://doi.org/10.5194/acp-23-13585-2023, 2023
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Incense burning is common in Asia, posing threats to human health and air quality. However, less is known about its emissions and health risks. Full-volatility organic species from incense-burning smoke are detected and quantified. Intermediate-volatility volatile organic compounds (IVOCs) are crucial organics accounting for 19.2 % of the total emission factors (EFs) and 40.0 % of the secondary organic aerosol (SOA) estimation, highlighting the importance of incorporating IVOCs into SOA models.
Qianqian Gao, Shengqiang Zhu, Kaili Zhou, Jinghao Zhai, Shaodong Chen, Qihuang Wang, Shurong Wang, Jin Han, Xiaohui Lu, Hong Chen, Liwu Zhang, Lin Wang, Zimeng Wang, Xin Yang, Qi Ying, Hongliang Zhang, Jianmin Chen, and Xiaofei Wang
Atmos. Chem. Phys., 23, 13049–13060, https://doi.org/10.5194/acp-23-13049-2023, https://doi.org/10.5194/acp-23-13049-2023, 2023
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Dust is a major source of atmospheric aerosols. Its chemical composition is often assumed to be similar to the parent soil. However, this assumption has not been rigorously verified. Dust aerosols are mainly generated by wind erosion, which may have some chemical selectivity. Mn, Cd and Pb were found to be highly enriched in fine-dust (PM2.5) aerosols. In addition, estimation of heavy metal emissions from dust generation by air quality models may have errors without using proper dust profiles.
Daniel C. O. Thornton, Sarah D. Brooks, Elise K. Wilbourn, Jessica Mirrielees, Alyssa N. Alsante, Gerardo Gold-Bouchot, Andrew Whitesell, and Kiana McFadden
Atmos. Chem. Phys., 23, 12707–12729, https://doi.org/10.5194/acp-23-12707-2023, https://doi.org/10.5194/acp-23-12707-2023, 2023
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A major uncertainty in our understanding of clouds and climate is the sources and properties of the aerosol on which clouds grow. We found that aerosol containing organic matter from fast-growing marine phytoplankton was a source of ice-nucleating particles (INPs). INPs facilitate freezing of ice crystals at warmer temperatures than otherwise possible and therefore change cloud formation and properties. Our results show that ecosystem processes and the properties of sea spray aerosol are linked.
Adam Milsom, Shaojun Qi, Ashmi Mishra, Thomas Berkemeier, Zhenyu Zhang, and Christian Pfrang
Atmos. Chem. Phys., 23, 10835–10843, https://doi.org/10.5194/acp-23-10835-2023, https://doi.org/10.5194/acp-23-10835-2023, 2023
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Aerosols and films are found indoors and outdoors. Our study measures and models reactions of a cooking aerosol proxy with the atmospheric oxidant ozone relying on a low-cost but sensitive technique based on mass changes and film rigidity. We found that film morphology changed and film rigidity increased with evidence of surface crust formation during ozone exposure. Our modelling results demonstrate clear potential to take this robust method to the field for reaction monitoring.
Shan Zhang, Lin Du, Zhaomin Yang, Narcisse Tsona Tchinda, Jianlong Li, and Kun Li
Atmos. Chem. Phys., 23, 10809–10822, https://doi.org/10.5194/acp-23-10809-2023, https://doi.org/10.5194/acp-23-10809-2023, 2023
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In this study, we have investigated the distinct impacts of humidity on the ozonolysis of two structurally different monoterpenes (limonene and Δ3-carene). We found that the molecular structure of precursors can largely influence the SOA formation under high RH by impacting the multi-generation reactions. Our results could advance knowledge on the roles of water content in aerosol formation and inform ongoing research on particle environmental effects and applications in models.
Yangzhihao Zhan, Min Xie, Wei Zhao, Tijian Wang, Da Gao, Pulong Chen, Jun Tian, Kuanguang Zhu, Shu Li, Bingliang Zhuang, Mengmeng Li, Yi Luo, and Runqi Zhao
Atmos. Chem. Phys., 23, 9837–9852, https://doi.org/10.5194/acp-23-9837-2023, https://doi.org/10.5194/acp-23-9837-2023, 2023
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Although the main source contribution of pollution is secondary inorganic aerosols in Nanjing, health risks mainly come from industry sources and vehicle emissions. Therefore, the development of megacities should pay more attention to the health burden of vehicle emissions, coal combustion, and industrial processes. This study provides new insight into assessing the relationship between source apportionment and health risks and can provide valuable insight into air pollution strategies.
Jonathan P. D. Abbatt and A. R. Ravishankara
Atmos. Chem. Phys., 23, 9765–9785, https://doi.org/10.5194/acp-23-9765-2023, https://doi.org/10.5194/acp-23-9765-2023, 2023
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With important climate and air quality impacts, atmospheric multiphase chemistry involves gas interactions with aerosol particles and cloud droplets. We summarize the status of the field and discuss potential directions for future growth. We highlight the importance of a molecular-level understanding of the chemistry, along with atmospheric field studies and modeling, and emphasize the necessity for atmospheric multiphase chemists to interact widely with scientists from neighboring disciplines.
Zhancong Liang, Zhihao Cheng, Ruifeng Zhang, Yiming Qin, and Chak K. Chan
Atmos. Chem. Phys., 23, 9585–9595, https://doi.org/10.5194/acp-23-9585-2023, https://doi.org/10.5194/acp-23-9585-2023, 2023
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In this study, we found that the photolysis of sodium nitrate leads to a much quicker decay of free amino acids (FAAs, with glycine as an example) in the particle phase than ammonium nitrate photolysis, which is likely due to the molecular interactions between FAAs and different nitrate salts. Since sodium nitrate likely co-exists with FAAs in the coarse-mode particles, particulate nitrate photolysis can possibly contribute to a rapid decay of FAAs and affect atmospheric nitrogen cycling.
Julian Resch, Kate Wolfer, Alexandre Barth, and Markus Kalberer
Atmos. Chem. Phys., 23, 9161–9171, https://doi.org/10.5194/acp-23-9161-2023, https://doi.org/10.5194/acp-23-9161-2023, 2023
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Detailed chemical analysis of organic aerosols is necessary to better understand their effects on climate and health. Aerosol samples are often stored for days to months before analysis. We examined the effects of storage conditions (i.e., time, temperature, and aerosol storage on filters or as solvent extracts) on composition and found significant changes in the concentration of individual compounds, indicating that sample storage can strongly affect the detailed chemical particle composition.
Xiaoliang Wang, Hatef Firouzkouhi, Judith C. Chow, John G. Watson, Warren Carter, and Alexandra S. M. De Vos
Atmos. Chem. Phys., 23, 8921–8937, https://doi.org/10.5194/acp-23-8921-2023, https://doi.org/10.5194/acp-23-8921-2023, 2023
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Open burning of household and municipal solid waste is a common practice in developing countries and is a significant source of air pollution. However, few studies have measured emissions from open burning of waste. This study determined gas and particulate emissions from open burning of 10 types of household solid-waste materials. These results can improve emission inventories, air quality management, and assessment of the health and climate effects of open burning of household waste.
Anita M. Avery, Mariam Fawaz, Leah R. Williams, Tami Bond, and Timothy B. Onasch
Atmos. Chem. Phys., 23, 8837–8854, https://doi.org/10.5194/acp-23-8837-2023, https://doi.org/10.5194/acp-23-8837-2023, 2023
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Pyrolysis is the thermal decomposition of fuels like wood which occurs during combustion or as an isolated process. During combustion, some pyrolysis products are emitted directly, while others are oxidized in the combustion process. This work describes the chemical composition of particle-phase pyrolysis products in order to investigate both the uncombusted emissions from wildfires and the fuel that participates in combustion.
Lan Ma, Reed Worland, Wenqing Jiang, Christopher Niedek, Chrystal Guzman, Keith J. Bein, Qi Zhang, and Cort Anastasio
Atmos. Chem. Phys., 23, 8805–8821, https://doi.org/10.5194/acp-23-8805-2023, https://doi.org/10.5194/acp-23-8805-2023, 2023
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Although photooxidants are important in airborne particles, little is known of their concentrations. By measuring oxidants in a series of particle dilutions, we predict their concentrations in aerosol liquid water (ALW). We find •OH concentrations in ALW are on the order of 10−15 M, similar to their cloud/fog values, while oxidizing triplet excited states and singlet molecular oxygen have ALW values of ca. 10−13 M and 10−12 M, respectively, roughly 10–100 times higher than in cloud/fog drops.
Daniel A. Knopf, Peiwen Wang, Benny Wong, Jay M. Tomlin, Daniel P. Veghte, Nurun N. Lata, Swarup China, Alexander Laskin, Ryan C. Moffet, Josephine Y. Aller, Matthew A. Marcus, and Jian Wang
Atmos. Chem. Phys., 23, 8659–8681, https://doi.org/10.5194/acp-23-8659-2023, https://doi.org/10.5194/acp-23-8659-2023, 2023
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Ambient particle populations and associated ice-nucleating particles (INPs)
were examined from particle samples collected on board aircraft in the marine
boundary layer and free troposphere in the eastern North Atlantic during
summer and winter. Chemical imaging shows distinct differences in the
particle populations seasonally and with sampling altitudes, which are
reflected in the INP types. Freezing parameterizations are derived for
implementation in cloud-resolving and climate models.
Dandan Liu, Yun Zhang, Shujun Zhong, Shuang Chen, Qiaorong Xie, Donghuan Zhang, Qiang Zhang, Wei Hu, Junjun Deng, Libin Wu, Chao Ma, Haijie Tong, and Pingqing Fu
Atmos. Chem. Phys., 23, 8383–8402, https://doi.org/10.5194/acp-23-8383-2023, https://doi.org/10.5194/acp-23-8383-2023, 2023
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Based on ultra-high-resolution mass spectrometry analysis, we found that β-pinene oxidation-derived highly oxygenated organic molecules (HOMs) exhibit higher yield at high ozone concentration, while limonene oxidation-derived HOMs exhibit higher yield at moderate ozone concentration. The distinct molecular response of HOMs and low-volatile species in different biogenic secondary organic aerosols to ozone concentrations provides a new clue for more accurate air quality prediction and management.
Mengying Bao, Yan-Lin Zhang, Fang Cao, Yihang Hong, Yu-Chi Lin, Mingyuan Yu, Hongxing Jiang, Zhineng Cheng, Rongshuang Xu, and Xiaoying Yang
Atmos. Chem. Phys., 23, 8305–8324, https://doi.org/10.5194/acp-23-8305-2023, https://doi.org/10.5194/acp-23-8305-2023, 2023
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The interaction between the sources and molecular compositions of humic-like substances (HULIS) at Nanjing, China, was explored. Significant fossil fuel source contributions to HULIS were found in the 14C results from biomass burnng and traffic emissions. Increasing biogenic secondary organic aerosol (SOA) products and anthropogenic aromatic compounds were detected in summer and winter, respectively.
Molly Frauenheim, Jason D. Surratt, Zhenfa Zhang, and Avram Gold
Atmos. Chem. Phys., 23, 7859–7866, https://doi.org/10.5194/acp-23-7859-2023, https://doi.org/10.5194/acp-23-7859-2023, 2023
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We report synthesis of the isoprene-derived photochemical oxidation products trans- and cis-β-epoxydiols in high overall yields from inexpensive, readily available starting compounds. Protection/deprotection steps or time-consuming purification is not required, and the reactions can be scaled up to gram quantities. The procedures provide accessibility of these important compounds to atmospheric chemistry laboratories with only basic capabilities in organic synthesis.
Xiangyun Zhang, Jun Li, Sanyuan Zhu, Junwen Liu, Ping Ding, Shutao Gao, Chongguo Tian, Yingjun Chen, Ping'an Peng, and Gan Zhang
Atmos. Chem. Phys., 23, 7495–7502, https://doi.org/10.5194/acp-23-7495-2023, https://doi.org/10.5194/acp-23-7495-2023, 2023
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The results show that 14C elemental carbon (EC) was not only related to the isolation method but also to the types and proportions of the biomass sources in the sample. The hydropyrolysis (Hypy) method, which can be used to isolate a highly stable portion of ECHypy and avoid charring, is a more effective and stable approach for the matrix-independent 14C quantification of EC in aerosols, and the 13C–ECHypy and non-fossil ECHypy values of SRM1649b were –24.9 ‰ and 11 %, respectively.
Amir Yazdani, Satoshi Takahama, John K. Kodros, Marco Paglione, Mauro Masiol, Stefania Squizzato, Kalliopi Florou, Christos Kaltsonoudis, Spiro D. Jorga, Spyros N. Pandis, and Athanasios Nenes
Atmos. Chem. Phys., 23, 7461–7477, https://doi.org/10.5194/acp-23-7461-2023, https://doi.org/10.5194/acp-23-7461-2023, 2023
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Organic aerosols directly emitted from wood and pellet stove combustion are found to chemically transform (approximately 15 %–35 % by mass) under daytime aging conditions simulated in an environmental chamber. A new marker for lignin-like compounds is found to degrade at a different rate than previously identified biomass burning markers and can potentially provide indication of aging time in ambient samples.
Hao Luo, Luc Vereecken, Hongru Shen, Sungah Kang, Iida Pullinen, Mattias Hallquist, Hendrik Fuchs, Andreas Wahner, Astrid Kiendler-Scharr, Thomas F. Mentel, and Defeng Zhao
Atmos. Chem. Phys., 23, 7297–7319, https://doi.org/10.5194/acp-23-7297-2023, https://doi.org/10.5194/acp-23-7297-2023, 2023
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Oxidation of limonene, an element emitted by trees and chemical products, by OH, a daytime oxidant, forms many highly oxygenated organic molecules (HOMs), including C10-20 compounds. HOMs play an important role in new particle formation and growth. HOM formation can be explained by the chemistry of peroxy radicals. We found that a minor branching ratio initial pathway plays an unexpected, significant role. Considering this pathway enables accurate simulations of HOMs and other concentrations.
Heather L. Runberg and Brian J. Majestic
Atmos. Chem. Phys., 23, 7213–7223, https://doi.org/10.5194/acp-23-7213-2023, https://doi.org/10.5194/acp-23-7213-2023, 2023
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Environmentally persistent free radicals (EPFRs) are an emerging pollutant found in soot particles. Understanding how these change as they move through the atmosphere is important to human health. Here, soot was generated in the laboratory and exposed to simulated sunlight. The concentrations and characteristics of EPFRs in the soot were measured and found to be unchanged. However, it was also found that the ability of soot to form hydroxyl radicals was stronger for fresh soot.
Wenqing Jiang, Christopher Niedek, Cort Anastasio, and Qi Zhang
Atmos. Chem. Phys., 23, 7103–7120, https://doi.org/10.5194/acp-23-7103-2023, https://doi.org/10.5194/acp-23-7103-2023, 2023
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We studied how aqueous-phase secondary organic aerosol (aqSOA) form and evolve from a phenolic carbonyl commonly present in biomass burning smoke. The composition and optical properties of the aqSOA are significantly affected by photochemical reactions and are dependent on the oxidants' concentration and identity in water. During photoaging, the aqSOA initially becomes darker, but prolonged aging leads to the formation of volatile products, resulting in significant mass loss and photobleaching.
Lucía Caudillo, Mihnea Surdu, Brandon Lopez, Mingyi Wang, Markus Thoma, Steffen Bräkling, Angela Buchholz, Mario Simon, Andrea C. Wagner, Tatjana Müller, Manuel Granzin, Martin Heinritzi, Antonio Amorim, David M. Bell, Zoé Brasseur, Lubna Dada, Jonathan Duplissy, Henning Finkenzeller, Xu-Cheng He, Houssni Lamkaddam, Naser G. A. Mahfouz, Vladimir Makhmutov, Hanna E. Manninen, Guillaume Marie, Ruby Marten, Roy L. Mauldin, Bernhard Mentler, Antti Onnela, Tuukka Petäjä, Joschka Pfeifer, Maxim Philippov, Ana A. Piedehierro, Birte Rörup, Wiebke Scholz, Jiali Shen, Dominik Stolzenburg, Christian Tauber, Ping Tian, António Tomé, Nsikanabasi Silas Umo, Dongyu S. Wang, Yonghong Wang, Stefan K. Weber, André Welti, Marcel Zauner-Wieczorek, Urs Baltensperger, Richard C. Flagan, Armin Hansel, Jasper Kirkby, Markku Kulmala, Katrianne Lehtipalo, Douglas R. Worsnop, Imad El Haddad, Neil M. Donahue, Alexander L. Vogel, Andreas Kürten, and Joachim Curtius
Atmos. Chem. Phys., 23, 6613–6631, https://doi.org/10.5194/acp-23-6613-2023, https://doi.org/10.5194/acp-23-6613-2023, 2023
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In this study, we present an intercomparison of four different techniques for measuring the chemical composition of nanoparticles. The intercomparison was performed based on the observed chemical composition, calculated volatility, and analysis of the thermograms. We found that the methods generally agree on the most important compounds that are found in the nanoparticles. However, they do see different parts of the organic spectrum. We suggest potential explanations for these differences.
Ruifeng Zhang and Chak Keung Chan
Atmos. Chem. Phys., 23, 6113–6126, https://doi.org/10.5194/acp-23-6113-2023, https://doi.org/10.5194/acp-23-6113-2023, 2023
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Research into sulfate and nitrate formation from co-uptake of NO2 and SO2, especially under irradiation, is rare. We studied the co-uptake of NO2 and SO2 by NaCl droplets under various conditions, including irradiation and dark, and RHs, using Raman spectroscopy flow cell and kinetic model simulation. Significant nitrate formation from NO2 hydrolysis can be photolyzed to generate OH radicals that can further react with chloride to produce reactive chlorine species and promote sulfate formation.
Shinnosuke Ishizuka, Oliver Reich, Grégory David, and Ruth Signorell
Atmos. Chem. Phys., 23, 5393–5402, https://doi.org/10.5194/acp-23-5393-2023, https://doi.org/10.5194/acp-23-5393-2023, 2023
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Photosensitizers play an important role in the photochemistry of atmospheric aerosols. Our study provides evidence that mesoscopic glycine clusters forming in aqueous droplets act as unconventional photosensitizers in the visible light spectrum. We observed the influence of these photoactive molecular aggregates in single optically trapped aqueous droplets. Such mesoscopic photosensitizers might be more important for aerosol photochemistry than previously anticipated.
Liyuan Zhou, Zhancong Liang, Beatrix Rosette Go Mabato, Rosemarie Ann Infante Cuevas, Rongzhi Tang, Mei Li, Chunlei Cheng, and Chak K. Chan
Atmos. Chem. Phys., 23, 5251–5261, https://doi.org/10.5194/acp-23-5251-2023, https://doi.org/10.5194/acp-23-5251-2023, 2023
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This study reveals the sulfate formation in photosensitized particles from biomass burning under UV and SO2, of which the relative atmospheric importance in sulfate production was qualitatively compared to nitrate photolysis. On the basis of single-particle aerosol mass spectrometry measurements, the number percentage of sulfate-containing particles and relative peak area of sulfate in single-particle spectra exhibited a descending order of 3,4-dimethoxybenzaldehyde > vanillin > syringaldehyde.
Mohammed Jaoui, Kenneth S. Docherty, Michael Lewandowski, and Tadeusz E. Kleindienst
Atmos. Chem. Phys., 23, 4637–4661, https://doi.org/10.5194/acp-23-4637-2023, https://doi.org/10.5194/acp-23-4637-2023, 2023
Short summary
Short summary
VCPs are a class of chemicals widely used in industrial and consumer products (e.g., coatings, adhesives, inks, personal care products) and are an important component of total VOCs in urban atmospheres. This study provides SOA yields and detailed chemical analysis of the gas- and aerosol-phase products of the photooxidation of one of these VCPs, benzyl alcohol. These results will allow better links between characterized sources and their resulting criteria for pollutant formation.
Cited articles
Anastasio, C., Faust, B. C., and Rao, C. J.: Aromatic carbonyl compounds as
aqueous-phase photochemical sources of hydrogen peroxide in acidic sulfate
aerosols, fogs, and clouds. 1. Non-phenolic methoxybenzaldehydes and
methoxyacetophenones with reductants (phenols), Environ. Sci. Technol., 31,
218–232, https://doi.org/10.1021/es960359g, 1997.
Aregahegn, K. Z., Felber, T., Tilgner, A., Hoffmann, E. H., Schaefer, T.,
and Herrmann, H.: Kinetics and mechanisms of aqueous-phase reactions of
triplet-state imidazole-2-carboxaldehyde and 3,4-dimethoxybenzaldehyde with
α,β-unsaturated carbonyl compounds, J. Phys. Chem. A, 126,
8727–8740, https://doi.org/10.1021/acs.jpca.2c05015, 2022.
Bateman, A. P., Laskin, J., Laskin, A., and Nizkorodov, S. A.: Applications
of high-resolution electrospray ionization mass spectrometry to measurements
of average oxygen to carbon ratios in secondary organic aerosols, Environ.
Sci. Technol., 46, 8315–832, https://doi.org/10.1021/es3017254, 2012.
Bianco, A., Passananti, M., Brigante, M., and Mailhot, G.: Photochemistry of
the cloud aqueous phase: a review, Molecules, 25, 423,
https://doi.org/10.3390/molecules25020423, 2020.
Calvert, J. G. and Madronich, S.: Theoretical study of the initial products
of the atmospheric oxidation of hydrocarbons, J. Geophys. Res., 92,
2211–2220, https://doi.org/10.1029/JD092iD02p02211, 1987.
Chen, H., Ge, X., and Ye, Z.: Aqueous-phase secondary organic aerosol
formation via reactions with organic triplet excited states – a short
review, Curr. Pollut. Rep., 4,
8–12, https://doi.org/10.1007/s40726-018-0079-7, 2018.
Chen, Y., Li, N., Li, X., Tao, Y., Luo, S., Zhao, Z., Ma, S., Huang, H.,
Chen, Y., Ye, Z., and Ge, X.: Secondary organic aerosol formation from
3C⚫-initiated oxidation of 4-ethylguaiacol in atmospheric
aqueous-phase, Sci. Total Environ., 723, 137953,
https://doi.org/10.1016/j.scitotenv.2020.137953, 2020.
Chen, Z. and Anastasio, C.: Concentrations of a triplet excited state are
enhanced in illuminated ice, Environ. Sci.-Processes Impacts, 19, 12–21,
https://doi.org/10.1039/C6EM00534A, 2017.
Collett Jr., J. L., Hoag, K. J., Sherman, D. E., Bator, A., and Richards, L.
W.: Spatial and temporal variations in San Joaquin Valley fog chemistry,
Atmos. Environ., 33, 129–140,
https://doi.org/10.1016/S1352-2310(98)00136-8, 1998.
De Haan, D. O., Tolbert, M. A., and Jimenez, J. L.: Atmospheric
condensed-phase reactions of glyoxal with methylamine, Geophys. Res. Lett.,
36, L11819, https://doi.org/10.1029/2009GL037441, 2009.
De Haan, D. O., Hawkins, L. N., Kononenko, J. A., Turley, J. J., Corrigan,
A. L., Tolbert, M. A., and Jimenez, J. L.: Formation of nitrogen-containing
oligomers by methylglyoxal and amines in simulated evaporating cloud
droplets, Environ. Sci. Technol., 45, 984–991,
https://doi.org/10.1021/es102933x, 2011.
De Haan, D. O., Pajunoja, A., Hawkins, L. N., Welsh, H. G., Jimenez, N. G.,
De Loera, A., Zauscher, M., Andretta, A. D., Joyce, B. W., De Haan, A. C.,
Riva, M., Cui, T., Surratt, J. D., Cazaunau, M., Formenti, P., Gratien, A.,
Pangui, E., and Doussin, J.-F.: Methylamine's effects on
methylglyoxal-containing aerosol: chemical, physical, and optical changes,
ACS Earth Space Chem., 3, 1706–1716,
https://doi.org/10.1021/acsearthspacechem.9b00103, 2019.
Du, Y., Fu, Q. S., Li, Y., and Su, Y.: Photodecomposition of 4-chlorophenol
by reactive oxygen species in UV/air system, J. Hazard. Mater., 186,
491–496, https://doi.org/10.1016/j.jhazmat.2010.11.023, 2011.
Edye, L. A. and Richards, G. N.: Analysis of condensates from wood smoke.
components derived from polysaccharides and lignins, Environ. Sci. Technol.,
25, 1133–1137, https://doi.org/10.1021/es00018a018, 1991.
Felber, T., Schaefer, T., He, L., and Herrmann, H.: Aromatic carbonyl and
nitro compounds as photosensitizers and their photophysical properties in
the tropospheric aqueous phase, J. Phys. Chem. A, 125, 5078–5095,
https://doi.org/10.1021/acs.jpca.1c03503, 2021.
Fleming, L. T., Lin, P., Laskin, A., Laskin, J., Weltman, R., Edwards, R. D., Arora, N. K., Yadav, A., Meinardi, S., Blake, D. R., Pillarisetti, A., Smith, K. R., and Nizkorodov, S. A.: Molecular composition of particulate matter emissions from dung and brushwood burning household cookstoves in Haryana, India, Atmos. Chem. Phys., 18, 2461–2480, https://doi.org/10.5194/acp-18-2461-2018, 2018.
Galloway, M. M., Chhabra, P. S., Chan, A. W. H., Surratt, J. D., Flagan, R. C., Seinfeld, J. H., and Keutsch, F. N.: Glyoxal uptake on ammonium sulphate seed aerosol: reaction products and reversibility of uptake under dark and irradiated conditions, Atmos. Chem. Phys., 9, 3331–3345, https://doi.org/10.5194/acp-9-3331-2009, 2009.
Garcia, S. L. M., Pandit, S., Navea, J. G., and Grassian, V. H.: Nitrous
acid (HONO) formation from the irradiation of aqueous nitrate solutions in
the presence of marine chromophoric dissolved organic matter: comparison to
other organic photosensitizers, ACS Earth Space Chem., 5, 3056–3064,
https://doi.org/10.1021/acsearthspacechem.1c00292, 2021.
Gen, M., Huang, D. D., and Chan, C. K.: Reactive uptake of glyoxal by
ammonium-containing salt particles as a function of relative humidity,
Environ. Sci. Technol., 52, 6903–6911,
https://doi.org/10.1021/acs.est.8b00606, 2018.
Gen, M., Zhang, R., Huang, D. D., Li, Y. J., and Chan, C. K.: Heterogeneous
SO2 oxidation in sulfate formation by photolysis of particulate
nitrate, Environ. Sci. Technol. Lett., 6, 86–91,
https://doi.org/10.1021/acs.estlett.8b00681, 2019a.
Gen, M., Zhang, R., Huang, D. D., Li, Y. J., and Chan, C. K.: Heterogeneous
oxidation of SO2 in sulfate production during nitrate photolysis at 300
nm: effect of pH, relative humidity, irradiation intensity, and the presence
of organic compounds, Environ. Sci. Technol., 53, 8757–8766,
https://doi.org/10.1021/acs.est.9b01623, 2019b.
Gen, M., Liang, Z., Zhang, R., Mabato, B. R. G., and Chan, C. K.:
Particulate nitrate photolysis in the atmosphere, Environ. Sci.-Atmos., 2,
111–127, https://doi.org/10.1039/d1ea00087j, 2022.
George, C., Brüggemann, M., Hayeck, N., Tinel, L., and Donaldson, J.:
Interfacial photochemistry: physical chemistry of gas-liquid interfaces, in:
Developments in Physical & Theoretical Chemistry, edited by: Faust, J. A.
and House, J. E., Elsevier, 435–457,
https://doi.org/10.1016/B978-0-12-813641-6.00014-5, 2018.
Giulianelli, L., Gilardoni, S., Tarozzi, L., Rinaldi, M., Decesari, S.,
Carbone, C., Facchini, M. C., and Fuzzi, S.: Fog occurrence and chemical
composition in the Po valley over the last twenty years, Atmos. Environ.,
98, 394–401, https://doi.org/10.1016/j.atmosenv.2014.08.080, 2014.
Grace, D. N., Sharp, J. R., Holappa, R. E., Lugos, E. N., Sebold, M. B.,
Griffith, D. R., Hendrickson, H. P., and Galloway, M. M.: Heterocyclic
product formation in aqueous brown carbon systems, ACS Earth Space Chem., 3,
2472–2481, https://doi.org/10.1021/acsearthspacechem.9b00235, 2019.
Hawthorne, S. B., Miller, D. J., Langenfeld, J. J., and Krieger, M. S.:
PM-10 High-volume collection and quantitation of semi- and nonvolatile
phenols, methoxylated phenols, alkanes, and polycyclic aromatic hydrocarbons
from winter urban air and their relationship to wood smoke emissions,
Environ. Sci. Technol., 26, 2251–2262,
https://doi.org/10.1021/es00035a026, 1992.
Hems, R. F., Schnitzler, E. G., Bastawrous, M., Soong, R., Simpson, A. J.,
and Abbatt, J. P. D.: Aqueous photoreactions of wood smoke brown carbon, ACS
Earth Space Chem., 4, 1149–1160,
https://doi.org/10.1021/acsearthspacechem.0c00117, 2020.
Hoshino, M., Akimoto, H., and Okuda, M.: Photochemical oxidation of benzene,
toluene, and ethylbenzene initiated by OH radicals in the gas phase, Bull.
Chem. Soc. Jpn., 51, 718–724, https://doi.org/10.1246/bcsj.51.718, 1978.
Huang, D. D., Zhang, Q., Cheung, H. H. Y., Yu, L., Zhou, S., Anastasio, C.,
Smith, J. D., and Chan, C. K.: Formation and evolution of aqSOA from
aqueous-phase reactions of phenolic carbonyls: comparison between ammonium
sulfate and ammonium nitrate solutions, Environ. Sci. Technol., 52,
9215–9224, https://doi.org/10.1021/acs.est.8b03441, 2018.
Iinuma, Y., Böge, O., Gräfe, R., and Herrmann, H.:
Methyl-nitrocatechols: atmospheric tracer compounds for biomass burning
secondary organic aerosols, Environ. Sci. Technol., 44, 8453–8459,
https://doi.org/10.1021/es102938a, 2010.
Jiang, W., Misovich, M. V., Hettiyadura, A. P. S., Laskin, A., McFall, A.
S., Anastasio, C., and Zhang, Q.: Photosensitized reactions of a phenolic
carbonyl from wood combustion in the aqueous phase – chemical evolution and
light absorption properties of aqSOA, Environ. Sci. Technol., 55,
5199–5211, https://doi.org/10.1021/acs.est.0c07581, 2021.
Kampf, C. J., Jakob, R., and Hoffmann, T.: Identification and characterization of aging products in the glyoxal/ammonium sulfate system – implications for light-absorbing material in atmospheric aerosols, Atmos. Chem. Phys., 12, 6323–6333, https://doi.org/10.5194/acp-12-6323-2012, 2012.
Kebarle, P. A.: A brief overview of the mechanisms involved in electrospray
mass spectrometry, J. Mass Spectrom., 35, 804–817,
https://doi.org/10.1002/9783527628728.ch1, 2000.
Kitanovski, Z., Grgić, I., Vermeylen, R., Claeys, M., and Maenhaut, W.:
Liquid chromatography tandem mass spectrometry method for characterization
of monoaromatic nitro-compounds in atmospheric particulate matter, J.
Chromatogr. A, 1268, 35–43, https://doi.org/10.1016/j.chroma.2012.10.021,
2012.
Klodt, A. L., Romonosky, D. E., Lin, P., Laskin, J., Laskin, A., and
Nizkorodov, S. A.: Aqueous photochemistry of secondary organic aerosol of
α-pinene and α-humulene in the presence of hydrogen peroxide
or inorganic salts, ACS Earth Space Chem., 3, 12, 2736–2746,
https://doi.org/10.1021/acsearthspacechem.9b00222, 2019.
Kobayashi, S. and Higashimura, H.: Oxidative polymerization of phenols
revisited, Prog. Polym. Sci., 28, 1015–1048,
https://doi.org/10.1016/S0079-6700(03)00014-5, 2003.
Kourtchev, I., Fuller, S. J., Giorio, C., Healy, R. M., Wilson, E., O'Connor, I., Wenger, J. C., McLeod, M., Aalto, J., Ruuskanen, T. M., Maenhaut, W., Jones, R., Venables, D. S., Sodeau, J. R., Kulmala, M., and Kalberer, M.: Molecular composition of biogenic secondary organic aerosols using ultrahigh-resolution mass spectrometry: comparing laboratory and field studies, Atmos. Chem. Phys., 14, 2155–2167, https://doi.org/10.5194/acp-14-2155-2014, 2014.
Kourtchev, I., Godoi, R. H. M., Connors, S., Levine, J. G., Archibald, A. T., Godoi, A. F. L., Paralovo, S. L., Barbosa, C. G. G., Souza, R. A. F., Manzi, A. O., Seco, R., Sjostedt, S., Park, J.-H., Guenther, A., Kim, S., Smith, J., Martin, S. T., and Kalberer, M.: Molecular composition of organic aerosols in central Amazonia: an ultra-high-resolution mass spectrometry study, Atmos. Chem. Phys., 16, 11899–11913, https://doi.org/10.5194/acp-16-11899-2016, 2016.
Kroll, J. H., Donahue, N. M., Jimenez, J. L., Kessler, S. H., Canagaratna,
M. R., Wilson, K. R., Altieri, K. E., Mazzoleni, L. R., Wozniak, A. S.,
Bluhm, H., Mysak, E. R., Smith, J. D., Kolb, C. E., and Worsnop, D. R.:
Carbon oxidation state as a metric for describing the chemistry of
atmospheric organic aerosol, Nat. Chem., 3, 133–139,
https://doi.org/10.1038/nchem.948, 2011.
Kruve, A., Kaupmees, K., Liigand, J., and Leito, I.: Negative electrospray
ionization via deprotonation: predicting the ionization efficiency, Anal.
Chem., 86, 4822–4830, https://doi.org/10.1021/ac404066v, 2014.
Laskin, A., Smith, J. S., and Laskin, J.: Molecular characterization of
nitrogen-containing organic compounds in biomass burning aerosols using
high-resolution mass spectrometry, Environ. Sci. Technol., 43, 3764–3771,
https://doi.org/10.1021/es803456n, 2009.
Laskin, A., Laskin, J., and Nizkorodov, S. A.: Chemistry of atmospheric
brown carbon, Chem. Rev., 115, 4335–4382,
https://doi.org/10.1021/cr5006167, 2015.
Laskin, J., Laskin, A., Nizkorodov, S. A., Roach, P., Eckert, P., Gilles, M.
K., Wang, B., Lee, H. J., and Hu, Q.: Molecular selectivity of brown carbon
chromophores, Environ. Sci. Technol., 48, 12047–12055,
https://doi.org/10.1021/es503432r, 2014.
Lee, A. K. Y., Zhao, R., Li, R., Liggio, J., Li, S., and Abbatt, J. P. D.:
Formation of light absorbing organo-nitrogen species from evaporation of
droplets containing glyoxal and ammonium sulfate, Environ. Sci. Technol.,
47, 12819–12826, https://doi.org/10.1021/es402687w, 2013.
Lee, H. J., Aiona, P. K., Laskin, A., Laskin, J., and Nizkorodov, S. A.:
Effect of solar radiation on the optical properties and molecular
composition of laboratory proxies of atmospheric brown carbon, Environ. Sci.
Technol., 48, 10217–10226, https://doi.org/10.1021/es502515r, 2014.
Leifer, A.: The Kinetics of environmental aquatic photochemistry: Theory and
practice, American Chemical Society, Washington, DC, p. 100, 1988.
Leito, I., Herodes, K., Huopolainen, M., Virro, K., Künnapas, A., Kruve,
A., and Tanner, R.: Towards the electrospray ionization mass spectrometry
ionization efficiency scale of organic compounds, Rapid Commun. Mass Sp.,
22, 379–384, https://doi.org/10.1002/rcm.3371, 2008.
Li, F., Zhou, S., Du, L., Zhao, J., Hang, J., and Wang, X.: Aqueous-phase
chemistry of atmospheric phenolic compounds: A critical review of laboratory
studies, Sci. Total Environ., 856, 158895,
https://doi.org/10.1016/j.scitotenv.2022.158895, 2022.
Li, P., Li, X., Yang, C., Wang, X., Chen, J., and Collett Jr., J. L.: Fog
water chemistry in Shanghai, Atmos. Environ., 45, 4034–4041,
https://doi.org/10.1016/j.atmosenv.2011.04.036, 2011.
Li, X., Tao, Y., Zhu, L., Ma, S., Luo, S., Zhao, Z., Sun, N., Ge, X., and Ye, Z.: Optical and chemical properties and oxidative potential of aqueous-phase products from OH and 3C∗-initiated photooxidation of eugenol, Atmos. Chem. Phys., 22, 7793–7814, https://doi.org/10.5194/acp-22-7793-2022, 2022.
Li, Y. J., Huang, D. D., Cheung, H. Y., Lee, A. K. Y., and Chan, C. K.: Aqueous-phase photochemical oxidation and direct photolysis of vanillin – a model compound of methoxy phenols from biomass burning, Atmos. Chem. Phys., 14, 2871–2885, https://doi.org/10.5194/acp-14-2871-2014, 2014.
Liang, Z., Zhang, R., Gen, M., Chu, Y., and Chan, C. K.: Nitrate photolysis
in mixed sucrose–nitrate–sulfate particles at different relative
humidities, J. Phys. Chem. A, 125, 3739–3747,
https://doi.org/10.1021/acs.jpca.1c00669, 2021.
Lin, P., Yu, J. Z., Engling, G., and Kalberer, M.: Organosulfates in
humic-like substance fraction isolated from aerosols at seven locations in
East Asia: a study by ultra-high-resolution mass spectrometry, Environ. Sci.
Technol., 46, 13118–13127, https://doi.org/10.1021/es303570v, 2012.
Lin, P., Fleming, L. T., Nizkorodov, S. A., Laskin, J., and Laskin, A.:
Comprehensive molecular characterization of atmospheric brown carbon by high
resolution mass spectrometry with electrospray and atmospheric pressure
photoionization, Anal. Chem., 90, 12493–12502,
https://doi.org/10.1021/acs.analchem.8b02177, 2018.
Lipari, F., Dasch, J. M., and Scruggs, W. F.: Aldehyde emissions from
wood-burning fireplaces, Environ. Sci. Technol., 18, 326–330,
https://doi.org/10.1021/es00123a007, 1984.
Liu, C., Chen, D., and Chen, X.: Atmospheric reactivity of methoxyphenols: a
review, Environ. Sci. Technol., 56, 2897–2916,
https://doi.org/10.1021/acs.est.1c06535, 2022.
Liu, Y., Lu, J., Chen, Y., Liu, Y., Ye, Z., and Ge, X.: Aqueous-phase
production of secondary organic aerosols from oxidation of dibenzothiophene
(DBT), Atmosphere, 11, 151, https://doi.org/10.3390/atmos11020151, 2020.
Lobodin, V. V., Marshall, A. G., and Hsu, C. S.: Compositional space
boundaries for organic compounds, Anal. Chem., 84, 3410–3416,
https://doi.org/10.1021/ac300244f, 2012.
Lu, J., Ge, X., Liu, Y., Chen, Y., Xie, X., Ou, Y., Ye, Z., and Chen, M.:
Significant secondary organic aerosol production from aqueous-phase
processing of two intermediate volatility organic compounds, Atmos.
Environ., 211, 63–68, https://doi.org/10.1016/j.atmosenv.2019.05.014, 2019.
Ma, L., Guzman, C., Niedek, C., Tran, T., Zhang, Q., and Anastasio, C.:
Kinetics and mass yields of aqueous secondary organic aerosol from highly
substituted phenols reacting with a triplet excited state, Environ. Sci.
Technol., 55, 5772–5781, https://doi.org/10.1021/acs.est.1c00575, 2021.
Mabato, B. R. G., Gen, M., Chu, Y., and Chan, C. K.: Reactive uptake of
glyoxal by methylaminium-containing salts as a function of relative
humidity, ACS Earth Space Chem., 3, 150–157,
https://doi.org/10.1021/acsearthspacechem.8b00154, 2019.
Mabato, B. R. G., Lyu, Y., Ji, Y., Li, Y. J., Huang, D. D., Li, X., Nah, T., Lam, C. H., and Chan, C. K.: Aqueous secondary organic aerosol formation from the direct photosensitized oxidation of vanillin in the absence and presence of ammonium nitrate, Atmos. Chem. Phys., 22, 273–293, https://doi.org/10.5194/acp-22-273-2022, 2022.
Mazzoleni, L. R., Saranjampour, P., Dalbec, M. M., Samburova, V., Hallar, A.
G., Zielinska, B., Lowenthal, D. H., and Kohl, S.: Identification of
water-soluble organic carbon in non-urban aerosols using
ultrahigh-resolution FT-ICR mass spectrometry: organic anions, Environ.
Chem., 9, 285–297, https://doi.org/10.1071/EN11167, 2012.
Minero, C., Bono, F., Rubertelli, F., Pavino, D., Maurino, V., Pelizzetti,
E., and Vione, D.: On the effect of pH in aromatic photonitration upon
nitrate photolysis, Chemosphere, 66, 650–656,
https://doi.org/10.1016/j.chemosphere.2006.07.082, 2007.
Misovich, M. V., Hettiyadura, A. P. S., Jiang, W., Zhang, Q., and Laskin,
A.: Molecular-level study of the photo-oxidation of aqueous-phase guaiacyl
acetone in the presence of 3C∗: formation of brown carbon products, ACS
Earth Space Chem., 5, 1983–1996,
https://doi.org/10.1021/acsearthspacechem.1c00103, 2021.
Munger, J. W., Jacob, D. J., Waldman, J. M., and Hoffmann, M. R.: Fogwater
chemistry in an urban atmosphere, J. Geophys. Res.-Oceans, 88, 5109–5121,
https://doi.org/10.1029/JC088iC09p05109, 1983.
Ning, C., Gao, Y., Zhang, H., Yu, H., Wang, L., Geng, N., Cao, R., and Chen,
J.: Molecular characterization of dissolved organic matters in winter
atmospheric fine particulate matters (PM2.5) from a coastal city of
northeast China, Sci. Total Environ., 689, 312–321,
https://doi.org/10.1016/j.scitotenv.2019.06.418, 2019.
Nolte, C. G., Schauer, J. J., Cass, G. R., and Simoneit, B. R. T.: Highly
polar organic compounds present in wood smoke and in the ambient atmosphere,
Environ. Sci. Technol., 35, 1912–1919, https://doi.org/10.1021/es001420r,
2001.
Nozière, B., Dziedzic, P., and Coìrdova, A.: Products and kinetics of the
liquid-phase reaction of glyoxal catalyzed by ammonium ions
(NH
Nozière, B., Dziedzic, P., and Coìrdova, A.: Inorganic ammonium salts and
carbonate salts are efficient catalysts for aldol condensation in
atmospheric aerosols, Phys. Chem. Chem. Phys., 12, 3864–3872,
https://doi.org/10.1039/B924443C, 2010.
Nozière, B., Fache, F., Maxut, A., Fenet, B., Baudouin, A., Fine, L., and
Ferronato, C.: The hydrolysis of epoxides catalyzed by inorganic ammonium
salts in water: kinetic evidence for hydrogen bond catalysis, Phys. Chem.
Chem. Phys., 20, 1583–1590, https://doi.org/10.1039/C7CP06790A, 2018.
Ou, Y., Nie, D., Chen, H., Ye, Z., and Ge, X.: Characterization of products
from the aqueous-phase photochemical oxidation of benzene-diols, Atmosphere,
12, 534, https://doi.org/10.3390/atmos12050534, 2021.
Pang, H., Zhang, Q., Lu, X., Li, K., Chen, H., Chen, J., Yang, X., Ma, Y.,
Ma, J., and Huang, C.: Nitrite-mediated photooxidation of vanillin in the
atmospheric aqueous phase, Environ. Sci. Technol., 53, 14253–14263,
https://doi.org/10.1021/acs.est.9b03649, 2019.
Perry, R. H., Cooks, R. G., and Noll, R. J.: Orbitrap mass spectrometry:
instrumentation, ion motion and applications, Mass Spectrom. Rev., 27,
661–699, https://doi.org/10.1002/mas.20186, 2008.
Powelson, M. H., Espelien, B. M., Hawkins, L. N., Galloway, M. M., and De
Haan, D. O.: Brown carbon formation by aqueous-phase carbonyl compound
reactions with amines and ammonium sulfate, Environ. Sci. Technol., 48,
985–993, https://doi.org/10.1021/es4038325, 2014.
Pye, H. O. T., Nenes, A., Alexander, B., Ault, A. P., Barth, M. C., Clegg, S. L., Collett Jr., J. L., Fahey, K. M., Hennigan, C. J., Herrmann, H., Kanakidou, M., Kelly, J. T., Ku, I.-T., McNeill, V. F., Riemer, N., Schaefer, T., Shi, G., Tilgner, A., Walker, J. T., Wang, T., Weber, R., Xing, J., Zaveri, R. A., and Zuend, A.: The acidity of atmospheric particles and clouds, Atmos. Chem. Phys., 20, 4809–4888, https://doi.org/10.5194/acp-20-4809-2020, 2020.
Raja, S., Raghunathan, R., Yu, X., Lee, T., Chen, J., Kommalapati, R. R.,
Murugesan, K., Shen, X., Qingzhong, Y., Valsaraj, K. T., and Collett Jr., J. L.: Fog chemistry in the Texas-Louisiana Gulf Coast corridor, Atmos.
Environ., 42, 2048–2061, https://doi.org/10.1016/j.atmosenv.2007.12.004,
2008.
Rogge, W. F., Hildemann, L. M., Mazurek, M. A., and Cass, G. R.: Sources of
fine organic aerosol. 9. Pine, oak, and synthetic log combustion in
residential fireplaces, Environ. Sci. Technol., 32, 13–22,
https://doi.org/10.1021/es960930b, 1998.
Romonosky, D. E., Li, Y., Shiraiwa, M., Laskin, A., Laskin, J., and
Nizkorodov, S. A.: Aqueous photochemistry of secondary organic aerosol of
α-Pinene and α-Humulene oxidized with ozone, hydroxyl
radical, and nitrate radical, J. Phys. Chem. A, 121, 1298–1309,
https://doi.org/10.1021/acs.jpca.6b10900, 2017.
Sagebiel, J. C., Seiber, J. N., and Woodrow, J. E.: Comparison of headspace
and gas-stripping methods for determining the Henry's law constant (H) for
organic compounds of low to intermediate H, Chemosphere, 25, 1763–1768,
https://doi.org/10.1016/0045-6535(92)90017-L, 1992.
Schauer, J. J., Kleeman, M. J., Cass, G. R., and Simoneit, B. R. T.:
Measurement of emissions from air pollution sources. 3. C1-C29
organic compounds from fireplace combustion of wood, Environ. Sci. Technol.,
35, 1716–1728, https://doi.org/10.1021/es001331e, 2001.
Schmidt, A.-C., Herzschuh, R., Matysik, F.-M., and Engewald, W.: Investigation
of the ionisation and fragmentation behaviour of different nitroaromatic
compounds occurring as polar metabolites of explosives using electrospray
ionisation tandem mass spectrometry, Rapid Commun. Mass Sp., 20, 2293–2302,
https://doi.org/10.1002/rcm.2591, 2006.
Shapiro, E. L., Szprengiel, J., Sareen, N., Jen, C. N., Giordano, M. R., and McNeill, V. F.: Light-absorbing secondary organic material formed by glyoxal in aqueous aerosol mimics, Atmos. Chem. Phys., 9, 2289–2300, https://doi.org/10.5194/acp-9-2289-2009, 2009.
Siegmann, K. and Sattler, K.: Formation mechanism for polycyclic aromatic
hydrocarbons in methane flames, J. Chem. Phys., 112, 698–709,
https://doi.org/10.1063/1.480648, 2000.
Simoneit, B. R. T.: Biomass burning – a review of organic tracers for
smoke from incomplete combustion, Appl. Geochem., 17, 129–162,
https://doi.org/10.1016/S0883-2927(01)00061-0, 2002.
Simoneit, B. R. T., Rogge, W. F., Mazurek, M. A., Standley, L. J.,
Hildemann, L. M., and Cass, G. R.: Lignin pyrolysis products, lignans, and
resin acids as specific tracers of plant classes in emissions from biomass
combustion, Environ. Sci. Technol., 27, 2533–2541,
https://doi.org/10.1021/es00048a034, 1993.
Simoneit, B. R. T., Schauer, J. J., Nolte, C. G., Oros, D. R., Elias, V. O.,
Fraser, M. P., Rogge, W. F., and Cass, G. R.: Levoglucosan, a tracer for
cellulose in biomass burning and atmospheric particles, Atmos. Environ., 33,
173–182, https://doi.org/10.1016/S1352-2310(98)00145-9, 1999.
Simpson, C. D., Paulsen, M., Dills, R. L., Liu, L.-J. S., and Kalman, D. A.:
Determination of methoxyphenols in ambient atmospheric particulate matter:
tracers for wood combustion, Environ. Sci. Technol., 39, 631–637,
https://doi.org/10.1021/es0486871, 2005.
Slikboer, S., Grandy, L., Blair, S. L., Nizkorodov, S. A., Smith, R. W., and
Al-Abadleh, H. A.: Formation of light absorbing soluble secondary organics
and insoluble polymeric particles from the dark reaction of catechol and
guaiacol with Fe(III), Environ. Sci. Technol., 49, 7793–7801,
https://doi.org/10.1021/acs.est.5b01032, 2015.
Smith, D. F., Kleindienst, T. E., and McIver, C. D.: Primary product
distributions from the reaction of OH with m-, p-xylene, 1,2,4-and
1,3,5-trimethylbenzene, J. Atmos. Chem., 34, 339–364,
https://doi.org/10.1023/A:1006277328628, 1999.
Smith, J. D., Sio, V., Yu, L., Zhang, Q., and Anastasio, C.: Secondary
organic aerosol production from aqueous reactions of atmospheric phenols
with an organic triplet excited state, Environ. Sci. Technol., 48,
1049–1057, https://doi.org/10.1021/es4045715, 2014.
Smith, J. D., Kinney, H., and Anastasio, C.: Aqueous benzene-diols react
with an organic triplet excited state and hydroxyl radical to form secondary
organic aerosol, Phys. Chem. Chem. Phys., 17, 10227–10237,
https://doi.org/10.1039/C4CP06095D, 2015.
Smith, J. D., Kinney, H., and Anastasio, C.: Phenolic carbonyls undergo
rapid aqueous photodegradation to form low-volatility, light-absorbing
products, Atmos. Environ., 126, 36–44,
https://doi.org/10.1016/j.atmosenv.2015.11.035, 2016.
Song, J., Li, M., Jiang, B., Wei, S., Fan, X., and Peng, P.: Molecular
characterization of water-soluble humic like substances in smoke particles
emitted from combustion of biomass materials and coal using
ultrahigh-resolution electrospray ionization Fourier transform ion cyclotron
resonance mass spectrometry, Environ. Sci. Technol., 52, 2575–2585,
https://doi.org/10.1021/acs.est.7b06126, 2018.
Sun, Y. L., Zhang, Q., Anastasio, C., and Sun, J.: Insights into secondary organic aerosol formed via aqueous-phase reactions of phenolic compounds based on high resolution mass spectrometry, Atmos. Chem. Phys., 10, 4809–4822, https://doi.org/10.5194/acp-10-4809-2010, 2010.
US EPA: Estimation Programs Interface Suite™ for
Microsoft® Windows, v 4.1, United States Environmental
Protection Agency, Washington, DC, USA, 2012.
Wang, K., Huang, R.-J., Brüggemann, M., Zhang, Y., Yang, L., Ni, H., Guo, J., Wang, M., Han, J., Bilde, M., Glasius, M., and Hoffmann, T.: Urban organic aerosol composition in eastern China differs from north to south: molecular insight from a liquid chromatography–mass spectrometry (Orbitrap) study, Atmos. Chem. Phys., 21, 9089–9104, https://doi.org/10.5194/acp-21-9089-2021, 2021.
Wang, X., Hayeck, N., Brüggemann, M., Yao, L., Chen, H., Zhang, C.,
Emmelin, C., Chen, J., George, C., and Wang, L.: Chemical characterization
of organic aerosols in Shanghai: A study by ultrahigh-performance liquid
chromatography coupled with orbitrap mass spectrometry, J. Geophys. Res.-Atmos., 122, 11703–11722, https://doi.org/10.1002/2017JD026930, 2017.
Wang, Y., Huang, D. D., Huang, W., Liu, B., Chen, Q., Huang, R., Gen, M.,
Mabato, B. R. G., Chan, C. K., Li, X., Hao, T., Tan, Y., Hoi, K. I., Mok, K.
M., and Li, Y. J.: Enhanced nitrite production from the aqueous photolysis
of nitrate in the presence of vanillic acid and implications for the roles
of light-absorbing organics, Environ. Sci. Technol., 55, 15694–15704,
https://doi.org/10.1021/acs.est.1c04642, 2021.
Wang, Y., Huang, W., Tian, L., Wang, Y., Li, F., Huang, D. D., Zhang, R.,
Mabato, B. R. G., Huang, R., Chen, Q., Ge, X., Du, L., Ma, Y. G., Gen, M.,
Hoi, K. I., Mok, K. M., Yu, J. Z., Chan, C. K., Li, X., and Li, Y. J.: Decay
kinetics and absorption changes of methoxyphenols and nitrophenols during
nitrate-mediated aqueous photochemical oxidation at 254 and 313 nm, ACS
Earth Space Chem., 6, 1115–1125,
https://doi.org/10.1021/acsearthspacechem.2c00021, 2022.
Yang, J., Au, W. C., Law, H., Leung, C. H., Lam, C. H, and Nah, T.: pH
affects the aqueous-phase nitrate-mediated photooxidation of phenolic
compounds: implications for brown carbon formation and evolution, Environ.
Sci.-Process. Impacts, https://doi.org/10.1039/D2EM00004K, 2022.
Yasmeen, F., Vermeylen, R., Szmigielski, R., Iinuma, Y., Böge, O., Herrmann, H., Maenhaut, W., and Claeys, M.: Terpenylic acid and related compounds: precursors for dimers in secondary organic aerosol from the ozonolysis of α- and β-pinene, Atmos. Chem. Phys., 10, 9383–9392, https://doi.org/10.5194/acp-10-9383-2010, 2010.
Yaws, C. L.: Handbook of vapor pressure, volume 3: Organic compounds C8 to
C28, Gulf Publishing Company, Houston, Texas, 1994.
Ye, Z., Qu, Z., Ma, S., Luo, S., Chen, Y., Chen, H., Chen, Y., Zhao, Z.,
Chen, M., and Ge, X.: A comprehensive investigation of aqueous-phase
photochemical oxidation of 4-ethylphenol, Sci. Total Environ., 685,
976–985, https://doi.org/10.1016/j.scitotenv.2019.06.276, 2019.
Yu, G., Bayer, A. R., Galloway, M. M., Korshavn, K. J., Fry, C. G., and
Keutsch, F. N.: Glyoxal in aqueous ammonium sulfate solutions: products,
kinetics and hydration effects, Environ. Sci. Technol., 45, 6336–6342,
https://doi.org/10.1021/es200989n, 2011.
Yu, L., Smith, J., Laskin, A., Anastasio, C., Laskin, J., and Zhang, Q.: Chemical characterization of SOA formed from aqueous-phase reactions of phenols with the triplet excited state of carbonyl and hydroxyl radical, Atmos. Chem. Phys., 14, 13801–13816, https://doi.org/10.5194/acp-14-13801-2014, 2014.
Yu, L., Smith, J., Laskin, A., George, K. M., Anastasio, C., Laskin, J., Dillner, A. M., and Zhang, Q.: Molecular transformations of phenolic SOA during photochemical aging in the aqueous phase: competition among oligomerization, functionalization, and fragmentation, Atmos. Chem. Phys., 16, 4511–4527, https://doi.org/10.5194/acp-16-4511-2016, 2016.
Zhang, Q. and Anastasio, C.: Conversion of fogwater and aerosol organic
nitrogen to ammonium, nitrate, and NOx during exposure to simulated
sunlight and ozone, Environ. Sci. Technol., 37, 3522–3530,
https://doi.org/10.1021/es034114x, 2003.
Zhang, R., Gen, M., Huang, D. D., Li, Y. J., and Chan, C. K.: Enhanced
sulfate production by nitrate photolysis in the presence of halide ions in
atmospheric particles, Environ. Sci. Technol., 54, 3831–3839,
https://doi.org/10.1021/acs.est.9b06445, 2020.
Zhang, R., Gen, M., Fu, T.-M., and Chan, C. K.: Production of formate via
oxidation of glyoxal promoted by particulate nitrate photolysis, Environ.
Sci. Technol., 55, 5711–5720, https://doi.org/10.1021/acs.est.0c0819, 2021.
Zhang, R., Gen, M., Liang, Z., Li, Y. J., and Chan, C. K.: Photochemical
reactions of glyoxal during particulate ammonium nitrate photolysis: Brown
carbon formation, enhanced glyoxal decay, and organic phase formation,
Environ. Sci. Technol., 56, 1605–1614,
https://doi.org/10.1021/acs.est.1c07211, 2022.
Zielinski, T., Bolzacchini, E., Cataldi, M., Ferrero, L., Graßl, S.,
Hansen, G., Mateos, D., Mazzola, M., Neuber, R., Pakszys, P., Posyniak, M.,
Ritter, C., Severi, M., Sobolewski, P., Traversi, R., and Velasco-Merino,
C.: Study of chemical and optical properties of biomass burning aerosols
during long-range transport events toward the Arctic in summer 2017,
Atmosphere, 11, 84, https://doi.org/10.3390/atmos11010084, 2020.
Short summary
We compared non-phenolic and phenolic methoxybenzaldehydes as photosensitizers for aqueous secondary organic aerosol (aqSOA) formation under cloud and fog conditions. We showed that the structural features of photosensitizers affect aqSOA formation. We also elucidated potential interactions between photosensitization and ammonium nitrate photolysis. Our findings are useful for evaluating the importance of photosensitized reactions on aqSOA formation, which could improve aqSOA predictive models.
We compared non-phenolic and phenolic methoxybenzaldehydes as photosensitizers for aqueous...
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