Articles | Volume 18, issue 8
https://doi.org/10.5194/acp-18-5879-2018
© Author(s) 2018. 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-18-5879-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Apr 2018
Research article |
| 26 Apr 2018
| 26 Apr 2018
Chemical characteristics of size-resolved atmospheric aerosols in Iasi, north-eastern Romania: nitrogen-containing inorganic compounds control aerosol chemistry in the area
Alina Giorgiana Galon-Negru
“Alexandru Ioan Cuza” University of Iasi, Faculty of Chemistry, Department of Chemistry, 11 Carol I, 700506 Iasi, Romania
Romeo Iulian Olariu
“Alexandru Ioan Cuza” University of Iasi, Faculty of Chemistry, Department of Chemistry, 11 Carol I, 700506 Iasi, Romania
“Alexandru Ioan Cuza” University of Iasi, Integrated Centre of Environmental Science Studies in the North Eastern Region, 11 Carol I, Iasi 700506, Romania
Cecilia Arsene
CORRESPONDING AUTHOR
“Alexandru Ioan Cuza” University of Iasi, Faculty of Chemistry, Department of Chemistry, 11 Carol I, 700506 Iasi, Romania
“Alexandru Ioan Cuza” University of Iasi, Integrated Centre of Environmental Science Studies in the North Eastern Region, 11 Carol I, Iasi 700506, Romania
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Caterina Mapelli, Juliette V. Schleicher, Alex Hawtin, Conor D. Rankine, Fiona C. Whiting, Fergal Byrne, C. Rob McElroy, Claudiu Roman, Cecilia Arsene, Romeo I. Olariu, Iustinian G. Bejan, and Terry J. Dillon
Atmos. Chem. Phys., 22, 14589–14602, https://doi.org/10.5194/acp-22-14589-2022, https://doi.org/10.5194/acp-22-14589-2022, 2022
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Solvents represent an important source of pollution from the chemical industry. New "green" solvents aim to replace toxic solvents with new molecules made from renewable sources and designed to be less harmful. Whilst these new molecules are selected according to toxicity and other characteristics, no consideration has yet been included on air quality. Studying the solvent breakdown in air, we found that TMO has a lower impact on air quality than traditional solvents with similar properties.
Claudiu Roman, Cecilia Arsene, Iustinian Gabriel Bejan, and Romeo Iulian Olariu
Atmos. Chem. Phys., 22, 2203–2219, https://doi.org/10.5194/acp-22-2203-2022, https://doi.org/10.5194/acp-22-2203-2022, 2022
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Gas-phase reaction rate coefficients of OH radicals with four nitrocatechols have been investigated for the first time by using ESC-Q-UAIC chamber facilities. The reactivity of all investigated nitrocatechols is influenced by the formation of the intramolecular H-bonds that are connected to the deactivating electromeric effect of the NO2 group. For the 3-nitrocatechol compounds, the electromeric effect of the
freeOH group is diminished by the deactivating E-effect of the NO2 group.
Related subject area
Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Evolution and chemical characteristics of organic aerosols during wintertime PM2.5 episodes in Shanghai, China: insights gained from online measurements of organic molecular markers
Arctic observations of hydroperoxymethyl thioformate (HPMTF) – seasonal behavior and relationship to other oxidation products of dimethyl sulfide at the Zeppelin Observatory, Svalbard
A 1-year aerosol chemical speciation monitor (ACSM) source analysis of organic aerosol particle contributions from anthropogenic sources after long-range transport at the TROPOS research station Melpitz
Contributions of primary emissions and secondary formation to nitrated aromatic compounds in themountain background region of Southeast China
Mist cannon trucks can exacerbate the formation of water-soluble organic aerosol and PM2.5 pollution in the road environment
Amino acids, carbohydrates, and lipids in the tropical oligotrophic Atlantic Ocean: sea-to-air transfer and atmospheric in situ formation
Ambient carbonaceous aerosol levels in Cyprus and the role of pollution transport from the Middle East
High contribution of anthropogenic combustion sources to atmospheric inorganic reactive nitrogen in South China evidenced by isotopes
Measurement report: Diurnal variations of brown carbon during two distinct seasons in a megacity in northeast China
Vertical profiles of volatile organic compounds and fine particles in atmospheric air by using an aerial drone with miniaturized samplers and portable devices
Multiple pathways for the formation of secondary organic aerosol in the North China Plain in summer
Insights into characteristics and formation mechanisms of secondary organic aerosols in the Guangzhou urban area
An attribution of the low single-scattering albedo of biomass burning aerosol over the southeastern Atlantic
Measurement report: Rapid changes of chemical characteristics and health risks for highly time resolved trace elements in PM2.5 in a typical industrial city in response to stringent clean air actions
Measurement report: Summertime fluorescence characteristics of atmospheric water-soluble organic carbon in the marine boundary layer of the western Arctic Ocean
Efficient production of singlet oxygen and organic triplet excited states in aqueous PM2.5 in Hong Kong, South China
High frequency of new particle formation events driven by summer monsoon in the central Tibetan Plateau, China
Chemical precursors of new particle formation in coastal New Zealand
Insights into the single-particle composition, size, mixing state, and aspect ratio of freshly emitted mineral dust from field measurements in the Moroccan Sahara using electron microscopy
Night-time NO emissions strongly suppress chlorine and nitrate radical formation during the winter in Delhi
Seasonal variation of aerosol iron solubility in coarse and fine particles at an inland city in northwestern China
Unambiguous identification of N-containing oxygenated organic molecules using a chemical-ionization Orbitrap (CI-Orbitrap) in an eastern Chinese megacity
Estimating hub-height wind speed based on a machine learning algorithm: implications for wind energy assessment
Characteristics and degradation of organic aerosols from cooking sources based on hourly observations of organic molecular markers in urban environments
Characteristics of particulate-bound n-alkanes indicating sources of PM2.5 in Beijing, China
Characterization of volatile organic compounds and submicron organic aerosol in a traffic environment
Non-volatile marine and non-refractory continental sources of particle-phase amine during the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES)
Effects of transport on a biomass burning plume from Indochina during EMeRGe-Asia identified by WRF-Chem
Measurement report: A one-year study to estimate maritime contributions to PM10 in a coastal area in Northern France
The shifting of secondary inorganic aerosol formation mechanisms during haze aggravation: the decisive role of aerosol liquid water
Collective geographical ecoregions and precursor sources driving Arctic new particle formation
Measurement report: Chemical components and 13C and 15N isotope ratios of fine aerosols over Tianjin, North China: year-round observations
Impact of biogenic secondary organic aerosol (SOA) loading on the molecular composition of wintertime PM2.5 in urban Tianjin: an insight from Fourier transform ion cyclotron resonance mass spectrometry
Impacts of biomass burning and photochemical processing on the light absorption of brown carbon in the southeastern Tibetan Plateau
Measurement report: New insights into the mixing structures of black carbon on the eastern Tibetan Plateau: soot redistribution and fractal dimension enhancement by liquid‒liquid phase separation
Fates of secondary organic aerosols in the atmosphere identified from compound-specific dual-carbon isotope analysis of oxalic acid
Measurement report: Aerosol vertical profiles over the western North Atlantic Ocean during the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES)
Characteristics of fine particle matter at the top of Shanghai Tower
Measurement report: Abundance and fractional solubilities of aerosol metals in urban Hong Kong – insights into factors that control aerosol metal dissolution in an urban site in South China
Measurement report: Intensive biomass burning emissions and rapid nitrate formation drive severe haze formation in the Sichuan Basin, China – insights from aerosol mass spectrometry
African smoke particles act as cloud condensation nuclei in the wintertime tropical North Atlantic boundary layer over Barbados
Measurement report: Changes in light absorption and molecular composition of water-soluble humic-like substances during a winter haze bloom-decay process in Guangzhou, China
Influence of natural and anthropogenic aerosol on cloud base droplet size distributions in clouds over the South China Sea and Western Pacific
Varying chiral ratio of pinic acid enantiomers above the Amazon rainforest
Impact of aging on the sources, volatility, and viscosity of organic aerosols in Chinese outflows
The Important Contribution of Secondary Formation and Biomass Burning to Oxidized Organic Nitrogen (OON) in a Polluted Urban Area: Insights from In Situ FIGAERO-CIMS Measurements
Biogenic and anthropogenic sources of isoprene and monoterpenes and their secondary organic aerosol in Delhi, India
In-depth study of the formation processes of single atmospheric particles in the southeastern margin of Tibetan Plateau
Different physicochemical behaviors of nitrate and ammonium during transport: a case study on Mt. Hua, China
A method for using stationary networks to observe long-term trends of on-road emission factors of primary aerosol from heavy-duty vehicles
Shuhui Zhu, Min Zhou, Liping Qiao, Dan Dan Huang, Qiongqiong Wang, Shan Wang, Yaqin Gao, Shengao Jing, Qian Wang, Hongli Wang, Changhong Chen, Cheng Huang, and Jian Zhen Yu
Atmos. Chem. Phys., 23, 7551–7568, https://doi.org/10.5194/acp-23-7551-2023, https://doi.org/10.5194/acp-23-7551-2023, 2023
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Organic aerosol (OA) is increasingly important in urban PM2.5 pollution as inorganic ions are becoming lower. We investigated the chemical characteristics of OA during nine episodes in Shanghai. The availability of bi-hourly measured molecular markers revealed that the control of local urban sources such as vehicular and cooking emissions lessened the severity of local episodes. Regional control of precursors and biomass burning would reduce PM2.5 episodes influenced by regional transport.
Karolina Siegel, Yvette Gramlich, Sophie L. Haslett, Gabriel Freitas, Radovan Krejci, Paul Zieger, and Claudia Mohr
Atmos. Chem. Phys., 23, 7569–7587, https://doi.org/10.5194/acp-23-7569-2023, https://doi.org/10.5194/acp-23-7569-2023, 2023
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Hydroperoxymethyl thioformate (HPMTF) is a recently discovered oxidation product of dimethyl sulfide (DMS). We present a full year of concurrent gas- and particle-phase observations of HPMTF and other DMS oxidation products from the Arctic. We did not observe significant amounts of HPMTF in the particle phase but a good agreement between gas-phase HMPTF and methanesulfonic acid in the summer. Our study provides information about the relationship between HPMTF and other DMS oxidation products.
Samira Atabakhsh, Laurent Poulain, Gang Chen, Francesco Canonaco, André S. H. Prévôt, Mira Pöhlker, Alfred Wiedensohler, and Hartmut Herrmann
Atmos. Chem. Phys., 23, 6963–6988, https://doi.org/10.5194/acp-23-6963-2023, https://doi.org/10.5194/acp-23-6963-2023, 2023
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The study focuses on the aerosol chemical variations found in the rural-background station of Melpitz based on ACSM and MAAP measurements. Source apportionment on both organic aerosol (OA) and black carbon (eBC) was performed, and source seasonality was also linked to air mass trajectories. Overall, three anthropogenic sources were identified in OA and eBC plus two additional aged OA. Our results demonstrate the influence of transported coal-combustion-related OA even during summer time.
Yanqin Ren, Gehui Wang, Jie Wei, Jun Tao, Zhisheng Zhang, and Hong Li
Atmos. Chem. Phys., 23, 6835–6848, https://doi.org/10.5194/acp-23-6835-2023, https://doi.org/10.5194/acp-23-6835-2023, 2023
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Nine quantified nitrated aromatic compounds (NACs) in PM2.5 were examined at the peak of Mt. Wuyi. They manifested a significant rise in overall abundance in the winter and autumn. The transport of contaminants had a significant impact on NACs. Under low-NOx conditions, the formation of NACs was comparatively sensitive to NO2, suggesting that NACs would become significant in the aerosol characteristics when nitrate concentrations decreased as a result of emission reduction measures.
Yu Xu, Xin-Ni Dong, Chen He, Dai-She Wu, Hong-Wei Xiao, and Hua-Yun Xiao
Atmos. Chem. Phys., 23, 6775–6788, https://doi.org/10.5194/acp-23-6775-2023, https://doi.org/10.5194/acp-23-6775-2023, 2023
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The air pollution associated with fine particles and secondary organic aerosol is not weakened by the application of mist cannon trucks but rather is aggravated. Our results provide not only new insights into the formation processes of aerosol water-soluble organic compounds associated with the water mist sprayed by mist cannon trucks in the road atmospheric environment but also crucial information for the decision makers to regulate the operation of mist cannon trucks in many cities in China.
Manuela van Pinxteren, Sebastian Zeppenfeld, Khanneh Wadinga Fomba, Nadja Triesch, Sanja Frka, and Hartmut Herrmann
Atmos. Chem. Phys., 23, 6571–6590, https://doi.org/10.5194/acp-23-6571-2023, https://doi.org/10.5194/acp-23-6571-2023, 2023
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Important marine organic carbon compounds were identified in the Atlantic Ocean and marine aerosol particles. These compounds were strongly enriched in the atmosphere. Their enrichment was, however, not solely explained via sea-to-air transfer but also via atmospheric in situ formation. The identified compounds constituted about 50 % of the organic carbon on the aerosol particles, and a pronounced coupling between ocean and atmosphere for this oligotrophic region could be concluded.
Aliki Christodoulou, Iasonas Stavroulas, Mihalis Vrekoussis, Maximillien Desservettaz, Michael Pikridas, Elie Bimenyimana, Jonilda Kushta, Matic Ivančič, Martin Rigler, Philippe Goloub, Konstantina Oikonomou, Roland Sarda-Estève, Chrysanthos Savvides, Charbel Afif, Nikos Mihalopoulos, Stéphane Sauvage, and Jean Sciare
Atmos. Chem. Phys., 23, 6431–6456, https://doi.org/10.5194/acp-23-6431-2023, https://doi.org/10.5194/acp-23-6431-2023, 2023
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Our study presents, for the first time, a detailed source identification of aerosols at an urban background site in Cyprus (eastern Mediterranean), a region strongly impacted by climate change and air pollution. Here, we identify an unexpected high contribution of long-range transported pollution from fossil fuel sources in the Middle East, highlighting an urgent need to further characterize these fast-growing emissions and their impacts on regional atmospheric composition, climate, and health.
Tingting Li, Jun Li, Zeyu Sun, Hongxing Jiang, Chongguo Tian, and Gan Zhang
Atmos. Chem. Phys., 23, 6395–6407, https://doi.org/10.5194/acp-23-6395-2023, https://doi.org/10.5194/acp-23-6395-2023, 2023
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N-NH4+ and N-NO3- were vital components in nitrogenous aerosols and contributed 69 % to total nitrogen in PM2.5. Coal combustion was still the most important source of urban atmospheric NO3-. However, the non-agriculture sources play an increasingly important role in NH4+ emissions.
Yuan Cheng, Xu-bing Cao, Jiu-meng Liu, Ying-jie Zhong, Qin-qin Yu, Qiang Zhang, and Ke-bin He
Atmos. Chem. Phys., 23, 6241–6253, https://doi.org/10.5194/acp-23-6241-2023, https://doi.org/10.5194/acp-23-6241-2023, 2023
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Brown carbon (BrC) aerosols were explored in the northernmost megacity in China during a frigid winter and an agricultural-fire-impacted spring. BrC was more light absorbing at night for both seasons, with more pronounced diurnal variations in spring, and the dominant drivers were identified as regulations on heavy-duty diesel trucks and open burning, respectively. Agricultural fires resulted in unique absorption spectra of BrC, which were characterized by a distinct peak at ∼365 nm.
Eka Dian Pusfitasari, Jose Ruiz-Jimenez, Aleksi Tiusanen, Markus Suuronen, Jesse Haataja, Yusheng Wu, Juha Kangasluoma, Krista Luoma, Tuukka Petäjä, Matti Jussila, Kari Hartonen, and Marja-Liisa Riekkola
Atmos. Chem. Phys., 23, 5885–5904, https://doi.org/10.5194/acp-23-5885-2023, https://doi.org/10.5194/acp-23-5885-2023, 2023
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A miniaturized air-sampling drone system was successfully applied for the collection of volatile organic compounds (VOCs) and for the measurement of black carbon (BC) and total particle number concentrations in atmospheric air. Here we report, for the first time, the vertical profiles of BC and aerosol number concentrations above the boreal forest in Hyytiälä (Finland) at high altitudes close to the boundary layer in autumn 2021. VOC composition with its distribution was studied as well.
Yifang Gu, Ru-Jin Huang, Jing Duan, Wei Xu, Chunshui Lin, Haobin Zhong, Ying Wang, Haiyan Ni, Quan Liu, Ruiguang Xu, Litao Wang, and Yong Jie Li
Atmos. Chem. Phys., 23, 5419–5433, https://doi.org/10.5194/acp-23-5419-2023, https://doi.org/10.5194/acp-23-5419-2023, 2023
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Secondary organic aerosol (SOA) can be produced by various pathways, but its formation mechanisms are unclear. Observations were conducted in the North China Plain during a highly oxidizing atmosphere in summer. We found that fast photochemistry dominated SOA formation during daytime. Two types of aqueous-phase chemistry (nocturnal and daytime processing) take place at high relative humidity. The potential transformation from primary organic aerosol (POA) to SOA was also an important pathway.
Miaomiao Zhai, Ye Kuang, Li Liu, Yao He, Biao Luo, Wanyun Xu, Jiangchuan Tao, Yu Zou, Fei Li, Changqin Yin, Chunhui Li, Hanbing Xu, and Xuejiao Deng
Atmos. Chem. Phys., 23, 5119–5133, https://doi.org/10.5194/acp-23-5119-2023, https://doi.org/10.5194/acp-23-5119-2023, 2023
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Using year-long aerosol mass spectrometer measurements, roles of secondary organic aerosols (SOA) during haze formations in an urban area of southern China were systematically analyzed. Almost all severe haze events were accompanied by continuous daytime and nighttime SOA formations, whereas coordinated gas-phase photochemistry and aqueous-phase reactions likely played significant roles in quick daytime SOA formations, and nitrate radicals played significant roles in nighttime SOA formations.
Amie Dobracki, Paquita Zuidema, Steven G. Howell, Pablo Saide, Steffen Freitag, Allison C. Aiken, Sharon P. Burton, Arthur J. Sedlacek III, Jens Redemann, and Robert Wood
Atmos. Chem. Phys., 23, 4775–4799, https://doi.org/10.5194/acp-23-4775-2023, https://doi.org/10.5194/acp-23-4775-2023, 2023
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Southern Africa produces approximately one-third of the world’s carbon from fires. The thick smoke layer can flow westward, interacting with the southeastern Atlantic cloud deck. The net radiative impact can alter regional circulation patterns, impacting rainfall over Africa. We find that the smoke is highly absorbing of sunlight, mostly because it contains more black carbon than smoke over the Northern Hemisphere.
Rui Li, Yining Gao, Yubao Chen, Meng Peng, Weidong Zhao, Gehui Wang, and Jiming Hao
Atmos. Chem. Phys., 23, 4709–4726, https://doi.org/10.5194/acp-23-4709-2023, https://doi.org/10.5194/acp-23-4709-2023, 2023
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A random forest model was used to isolate the effects of emission and meteorology to trace elements in PM2.5 in Tangshan. The results suggested that control measures facilitated decreases of Ga, Co, Pb, Zn, and As, due to the strict implementation of coal-to-gas strategies and optimisation of industrial structure and layout. However, the deweathered levels of Ca, Cr, and Fe only displayed minor decreases, indicating that ferrous metal smelting and vehicle emission controls should be enhanced.
Jinyoung Jung, Yuzo Miyazaki, Jin Hur, Yun Kyung Lee, Mi Hae Jeon, Youngju Lee, Kyoung-Ho Cho, Hyun Young Chung, Kitae Kim, Jung-Ok Choi, Catherine Lalande, Joo-Hong Kim, Taejin Choi, Young Jun Yoon, Eun Jin Yang, and Sung-Ho Kang
Atmos. Chem. Phys., 23, 4663–4684, https://doi.org/10.5194/acp-23-4663-2023, https://doi.org/10.5194/acp-23-4663-2023, 2023
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This study examined the summertime fluorescence properties of water-soluble organic carbon (WSOC) in aerosols over the western Arctic Ocean. We found that the WSOC in fine-mode aerosols in coastal areas showed a higher polycondensation degree and aromaticity than in sea-ice-covered areas. The fluorescence properties of atmospheric WSOC in the summertime marine Arctic boundary can improve our understanding of the WSOC chemical and biological linkages at the ocean–sea-ice–atmosphere interface.
Yuting Lyu, Yin Hau Lam, Yitao Li, Nadine Borduas-Dedekind, and Theodora Nah
EGUsphere, https://doi.org/10.5194/egusphere-2023-739, https://doi.org/10.5194/egusphere-2023-739, 2023
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We measured singlet oxygen (1O2) and triplet excited states of organic matter (3C∗) in illuminated aqueous extracts of PM2.5 collected in different seasons at different sites in Hong Kong, South China. In contrast to the locations, seasonality had significant effects on 3C∗ and 1O2 production due to seasonal variations in long-range air mass transport. The steady-state concentrations of 3C∗ and 1O2 correlated with the concentration and absorbance of water-soluble organic carbon.
Lizi Tang, Min Hu, Dongjie Shang, Xin Fang, Jianjiong Mao, Wanyun Xu, Jiacheng Zhou, Weixiong Zhao, Yaru Wang, Chong Zhang, Yingjie Zhang, Jianlin Hu, Limin Zeng, Chunxiang Ye, Song Guo, and Zhijun Wu
Atmos. Chem. Phys., 23, 4343–4359, https://doi.org/10.5194/acp-23-4343-2023, https://doi.org/10.5194/acp-23-4343-2023, 2023
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There was an evident distinction in the frequency of new particle formation (NPF) events at Nam Co station on the Tibetan Plateau: 15 % in pre-monsoon season and 80 % in monsoon season. The frequent NPF events in monsoon season resulted from the higher frequency of southerly air masses, which brought the organic precursors to participate in the NPF process. It increased the amount of aerosol and CCN compared with those in pre-monsoon season, which may markedly affect earth's radiation balance.
Maija Peltola, Clémence Rose, Jonathan V. Trueblood, Sally Gray, Mike Harvey, and Karine Sellegri
Atmos. Chem. Phys., 23, 3955–3983, https://doi.org/10.5194/acp-23-3955-2023, https://doi.org/10.5194/acp-23-3955-2023, 2023
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We measured the chemical composition of ambient ions at a coastal New Zealand site and connected these data with aerosol size distribution data to study the chemical precursors of new particle formation at the site. Our results showed that iodine oxides and sulfur species were important for particle formation in marine air, while in land-influenced air sulfuric acid and organics were connected to new particle formation events.
Agnesh Panta, Konrad Kandler, Andres Alastuey, Cristina González-Flórez, Adolfo González-Romero, Martina Klose, Xavier Querol, Cristina Reche, Jesús Yus-Díez, and Carlos Pérez García-Pando
Atmos. Chem. Phys., 23, 3861–3885, https://doi.org/10.5194/acp-23-3861-2023, https://doi.org/10.5194/acp-23-3861-2023, 2023
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Desert dust is a major aerosol component of the Earth system and affects the climate. Dust properties are influenced by particle size, mineralogy, shape, and mixing state. This work characterizes freshly emitted individual mineral dust particles from a major source region using electron microscopy. Our new insights into critical particle-specific information will contribute to better constraining climate models that consider mineralogical variations in their representation of the dust cycle.
Sophie L. Haslett, David M. Bell, Varun Kumar, Jay G. Slowik, Dongyu S. Wang, Suneeti Mishra, Neeraj Rastogi, Atinderpal Singh, Dilip Ganguly, Joel Thornton, Feixue Zheng, Yuanyuan Li, Wei Nie, Yongchun Liu, Wei Ma, Chao Yan, Markku Kulmala, Kaspar R. Daellenbach, David Hadden, Urs Baltensperger, Andre S. H. Prevot, Sachchida N. Tripathi, and Claudia Mohr
EGUsphere, https://doi.org/10.5194/egusphere-2023-497, https://doi.org/10.5194/egusphere-2023-497, 2023
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In Delhi, some aspects of daytime and night-time atmospheric chemistry are “flipped,” and parodoxically, vehicle emissions may be limiting other forms of particle production. This is because the night-time emissions of nitrogen oxide (NO) by traffic, as well as biomass burning, prevents some chemical processes that would otherwise create even more particles, and worsen the urban haze.
Huanhuan Zhang, Rui Li, Chengpeng Huang, Xiaofei Li, Shuwei Dong, Fu Wang, Tingting Li, Yizhu Chen, Guohua Zhang, Yan Ren, Qingcai Chen, Ru-jin Huang, Siyu Chen, Tao Xue, Xinming Wang, and Mingjin Tang
Atmos. Chem. Phys., 23, 3543–3559, https://doi.org/10.5194/acp-23-3543-2023, https://doi.org/10.5194/acp-23-3543-2023, 2023
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This work investigated the seasonal variation of aerosol Fe solubility for coarse and fine particles in Xi’an, a megacity in northwestern China severely affected by anthropogenic emission and desert dust aerosol. In addition, we discussed in depth what controlled aerosol Fe solubility at different seasons for coarse and fine particles.
Yiqun Lu, Yingge Ma, Dan Dan Huang, Shengrong Lou, Sheng'ao Jing, Yaqin Gao, Hongli Wang, Yanjun Zhang, Hui Chen, Yunhua Chang, Naiqiang Yan, Jianmin Chen, Christian George, Matthieu Riva, and Cheng Huang
Atmos. Chem. Phys., 23, 3233–3245, https://doi.org/10.5194/acp-23-3233-2023, https://doi.org/10.5194/acp-23-3233-2023, 2023
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N-containing oxygenated organic molecules have been identified as important precursors of aerosol particles. We used an ultra-high-resolution mass spectrometer coupled with an online sample inlet to accurately measure their molecular composition, concentration level and variation patterns. We show their formation process and influencing factors in a Chinese megacity involving various volatile organic compound precursors and atmospheric oxidants, and we highlight the influence of PM2.5 episodes.
Boming Liu, Xin Ma, Jianping Guo, Hui Li, Shikuan Jin, Yingying Ma, and Wei Gong
Atmos. Chem. Phys., 23, 3181–3193, https://doi.org/10.5194/acp-23-3181-2023, https://doi.org/10.5194/acp-23-3181-2023, 2023
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Wind energy is one of the most essential clean and renewable forms of energy in today’s world. However, the traditional power law method generally estimates the hub-height wind speed by assuming a constant exponent between surface and hub-height wind speeds. This inevitably leads to significant uncertainties in estimating the wind speed profile. To minimize the uncertainties, we here use a machine learning algorithm known as random forest to estimate the wind speed at hub height.
Rui Li, Kun Zhang, Qing Li, Liumei Yang, Shunyao Wang, Zhiqiang Liu, Xiaojuan Zhang, Hui Chen, Yanan Yi, Jialiang Feng, Qiongqiong Wang, Ling Huang, Wu Wang, Yangjun Wang, Jian Zhen Yu, and Li Li
Atmos. Chem. Phys., 23, 3065–3081, https://doi.org/10.5194/acp-23-3065-2023, https://doi.org/10.5194/acp-23-3065-2023, 2023
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Molecular markers in organic aerosol (OA) provide specific source information on PM2.5, and the contribution of cooking emissions to OA is significant, especially in urban environments. This study investigates the variation in concentrations and oxidative degradation of fatty acids and corresponding oxidation products in ambient air, which can be a guide for the refinement of aerosol source apportionment and provide scientific support for the development of emission source control policies.
Jiyuan Yang, Guoyang Lei, Chang Liu, Yutong Wu, Kai Hu, Jinfeng Zhu, Junsong Bao, Weili Lin, and Jun Jin
Atmos. Chem. Phys., 23, 3015–3029, https://doi.org/10.5194/acp-23-3015-2023, https://doi.org/10.5194/acp-23-3015-2023, 2023
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The characteristics of n-alkanes and the contributions of various sources of PM2.5 in the atmosphere in Beijing were studied. There were marked seasonal and diurnal differences in the n-alkane concentrations (p<0.01). Particulate-bound n-alkanes were supplied by anthropogenic and biogenic sources; fossil fuel combustion was the dominant contributor. Vehicle exhausts strongly affect PM2.5 pollution. Controlling vehicle exhaust emissions is key to control n-alkane and PM2.5 pollution in Beijing.
Sanna Saarikoski, Heidi Hellén, Arnaud P. Praplan, Simon Schallhart, Petri Clusius, Jarkko V. Niemi, Anu Kousa, Toni Tykkä, Rostislav Kouznetsov, Minna Aurela, Laura Salo, Topi Rönkkö, Luis M. F. Barreira, Liisa Pirjola, and Hilkka Timonen
Atmos. Chem. Phys., 23, 2963–2982, https://doi.org/10.5194/acp-23-2963-2023, https://doi.org/10.5194/acp-23-2963-2023, 2023
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This study elucidates properties and sources of volatile organic compounds (VOCs) and organic aerosol (OA) in a traffic environment. Anthropogenic VOCs (aVOCs) were clearly higher than biogenic VOCs (bVOCs), but bVOCs produced a larger portion of oxidation products. OA consisted mostly of oxygenated OA, representing secondary OA (SOA). SOA was partly associated with bVOCs, but it was also related to long-range transport. Primary OA originated mostly from traffic.
Veronica Z. Berta, Lynn M. Russell, Derek J. Price, Chia-Li Chen, Alex K. Y. Lee, Patricia K. Quinn, Timothy S. Bates, Thomas G. Bell, and Michael J. Behrenfeld
Atmos. Chem. Phys., 23, 2765–2787, https://doi.org/10.5194/acp-23-2765-2023, https://doi.org/10.5194/acp-23-2765-2023, 2023
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Amines are compounds emitted from a variety of marine and continental sources and were measured by aerosol mass spectrometry and Fourier transform infrared spectroscopy during the North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) cruises. Secondary continental and primary marine sources of amines were identified by comparisons to tracers. The results show that the two methods are complementary for investigating amines in the marine environment.
Chuan-Yao Lin, Wan-Chin Chen, Yi-Yun Chien, Charles C. K. Chou, Chian-Yi Liu, Helmut Ziereis, Hans Schlager, Eric Förster, Florian Obersteiner, Ovid O. Krüger, Bruna A. Holanda, Mira L. Pöhlker, Katharina Kaiser, Johannes Schneider, Birger Bohn, Klaus Pfeilsticker, Benjamin Weyland, Maria Dolores Andrés Hernández, and John P. Burrows
Atmos. Chem. Phys., 23, 2627–2647, https://doi.org/10.5194/acp-23-2627-2023, https://doi.org/10.5194/acp-23-2627-2023, 2023
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During the EMeRGe campaign in Asia, atmospheric pollutants were measured on board the HALO aircraft. The WRF-Chem model was employed to evaluate the biomass burning (BB) plume transported from Indochina and its impact on the downstream areas. The combination of BB aerosol enhancement with cloud water resulted in a reduction in incoming shortwave radiation at the surface in southern China and the East China Sea, which potentially has significant regional climate implications.
Frédéric Ledoux, Cloé Roche, Gilles Delmaire, Gilles Roussel, Olivier Favez, Marc Fadel, and Dominique Courcot
EGUsphere, https://doi.org/10.5194/egusphere-2023-169, https://doi.org/10.5194/egusphere-2023-169, 2023
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The objective of this work is to quantify the emissions resulting from the marine compartment in Northern France whether from natural or human-made sources. Therefore, a one-year PM10 sampling campaign was conducted at a coastal French site. Results showed that sea-salts contributed 37 %, while secondary nitrate and sulfate contributed 41 %, biomass burning 10 %, and HFO combustion from shipping emissions 5 %. Sources contributing to more than 80 % of PM10 are of regional and/or long-range origins.
Fei Xie, Yue Su, Yongli Tian, Yanju Shi, Xingjun Zhou, Peng Wang, Ruihong Yu, Wei Wang, Jiang He, Jinyuan Xin, and Changwei Lü
Atmos. Chem. Phys., 23, 2365–2378, https://doi.org/10.5194/acp-23-2365-2023, https://doi.org/10.5194/acp-23-2365-2023, 2023
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This work finds the shifting of secondary inorganic aerosol formation mechanisms during haze aggravation and explains the decisive role of aerosol liquid water on a broader scale (~ 500 μg m3) in an ammonia-rich atmosphere based on the in situ high-resolution online monitoring datasets.
James Brean, David C. S. Beddows, Roy M. Harrison, Congbo Song, Peter Tunved, Johan Ström, Radovan Krejci, Eyal Freud, Andreas Massling, Henrik Skov, Eija Asmi, Angelo Lupi, and Manuel Dall'Osto
Atmos. Chem. Phys., 23, 2183–2198, https://doi.org/10.5194/acp-23-2183-2023, https://doi.org/10.5194/acp-23-2183-2023, 2023
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Our results emphasize how understanding the geographical variation in surface types across the Arctic is key to understanding secondary aerosol sources. We provide a harmonised analysis of new particle formation across the Arctic.
Zhichao Dong, Chandra Mouli Pavuluri, Zhanjie Xu, Yu Wang, Peisen Li, Pingqing Fu, and Cong-Qiang Liu
Atmos. Chem. Phys., 23, 2119–2143, https://doi.org/10.5194/acp-23-2119-2023, https://doi.org/10.5194/acp-23-2119-2023, 2023
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This study has provided comprehensive baseline data of carbonaceous and inorganic aerosols as well as their isotope ratios in the Tianjin region, North China, found that Tianjin aerosols were derived from coal combustion, biomass burning and photochemical reactions of VOCs, and also implied that the Tianjin aerosols were more aged during long-range atmospheric transport in summer via carbonaceous and isotope data analysis.
Shujun Zhong, Shuang Chen, Junjun Deng, Yanbing Fan, Qiang Zhang, Qiaorong Xie, Yulin Qi, Wei Hu, Libin Wu, Xiaodong Li, Chandra Mouli Pavuluri, Jialei Zhu, Xin Wang, Di Liu, Xiaole Pan, Yele Sun, Zifa Wang, Yisheng Xu, Haijie Tong, Hang Su, Yafang Cheng, Kimitaka Kawamura, and Pingqing Fu
Atmos. Chem. Phys., 23, 2061–2077, https://doi.org/10.5194/acp-23-2061-2023, https://doi.org/10.5194/acp-23-2061-2023, 2023
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This study investigated the role of the secondary organic aerosol (SOA) loading on the molecular composition of wintertime urban aerosols by ultrahigh-resolution mass spectrometry. Results demonstrate that the SOA loading is an important factor associated with the oxidation degree, nitrate group content, and chemodiversity of nitrooxy–organosulfates. Our study also found that the hydrolysis of nitrooxy–organosulfates is a possible pathway for the formation of organosulfates.
Jie Tian, Qiyuan Wang, Yongyong Ma, Jin Wang, Yongming Han, and Junji Cao
Atmos. Chem. Phys., 23, 1879–1892, https://doi.org/10.5194/acp-23-1879-2023, https://doi.org/10.5194/acp-23-1879-2023, 2023
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We investigated the light absorption properties of brown carbon (BrC) in the Tibetan Plateau (TP). BrC made a substantial contribution to the submicron aerosol absorption, which is related to the cross-border transport of biomass burning emission and secondary aerosol from Southeast Asia. The radiative effect of BrC was half that of black carbon, which can remarkably affect the radiative balance of the TP.
Qi Yuan, Yuanyuan Wang, Yixin Chen, Siyao Yue, Jian Zhang, Yinxiao Zhang, Liang Xu, Wei Hu, Dantong Liu, Pingqing Fu, Huiwang Gao, and Weijun Li
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-831, https://doi.org/10.5194/acp-2022-831, 2023
Preprint under review for ACP
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This study for the first time found large amounts of liquid-liquid phase separation particles with BC redistributing in organic coatings instead of sulfate cores in the eastern TP atmosphere. The entire particle size, OM-coating thickness, and BC size are key factors that affect the BC redistribution process. The BC redistribution process and high RH both promoted the morphological compaction of soot particles.
Buqing Xu, Jiao Tang, Tiangang Tang, Shizhen Zhao, Guangcai Zhong, Sanyuan Zhu, Jun Li, and Gan Zhang
Atmos. Chem. Phys., 23, 1565–1578, https://doi.org/10.5194/acp-23-1565-2023, https://doi.org/10.5194/acp-23-1565-2023, 2023
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We analyzed compound-specific dual-carbon isotope signatures (Δ14C and δ13C) of dominant secondary organic aerosol (SOA) tracer molecules (i.e., oxalic acid) to investigate the fates of SOAs in the atmosphere at five emission hotspots in China. The results indicated that SOA carbon sources and chemical processes producing SOAs vary spatially and seasonally, and these variations need to be included in Chinese climate projection models and air quality management practices.
Francesca Gallo, Kevin J. Sanchez, Bruce E. Anderson, Ryan Bennett, Matthew D. Brown, Ewan C. Crosbie, Chris Hostetler, Carolyn Jordan, Melissa Yang Martin, Claire E. Robinson, Lynn M. Russell, Taylor J. Shingler, Michael A. Shook, Kenneth L. Thornhill, Elizabeth B. Wiggins, Edward L. Winstead, Armin Wisthaler, Luke D. Ziemba, and Richard H. Moore
Atmos. Chem. Phys., 23, 1465–1490, https://doi.org/10.5194/acp-23-1465-2023, https://doi.org/10.5194/acp-23-1465-2023, 2023
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We integrate in situ ship- and aircraft-based measurements of aerosol, trace gases, and meteorological parameters collected during the NASA North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) field campaigns in the western North Atlantic Ocean region. A comprehensive characterization of the vertical profiles of aerosol properties under different seasonal regimes is provided for improving the understanding of aerosol key processes and aerosol–cloud interactions in marine regions.
Changqin Yin, Jianming Xu, Wei Gao, Liang Pan, Yixuan Gu, Qingyan Fu, and Fan Yang
Atmos. Chem. Phys., 23, 1329–1343, https://doi.org/10.5194/acp-23-1329-2023, https://doi.org/10.5194/acp-23-1329-2023, 2023
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The particle matter (PM2.5) at the top of the 632 m high Shanghai Tower was found to be higher than the surface from June to October due to unexpected larger PM2.5 levels during early to middle afternoon at Shanghai Tower. We suppose the significant chemical production of secondary species existed in the mid-upper planetary boundary layer. We found a high nitrate concentration at the tower site for both daytime and nighttime in winter, implying efficient gas-phase and heterogeneous formation.
Junwei Yang, Lan Ma, Xiao He, Wing Chi Au, Yanhao Miao, Wen-Xiong Wang, and Theodora Nah
Atmos. Chem. Phys., 23, 1403–1419, https://doi.org/10.5194/acp-23-1403-2023, https://doi.org/10.5194/acp-23-1403-2023, 2023
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Water-soluble metals play key roles in human health and atmospheric processes. We report the seasonal abundance and fractional solubilities of different metals in aerosols collected in urban Hong Kong as well as the key factors that modulated solubilities of the various metals in fine aerosols. Our results highlight the dual roles (i.e., acidifying the aerosol particle and providing a liquid reaction medium) that sulfate plays in the acid dissolution of metals in fine aerosols in Hong Kong.
Zhier Bao, Xinyi Zhang, Qing Li, Jiawei Zhou, Guangming Shi, Li Zhou, Fumo Yang, Shaodong Xie, Dan Zhang, Chongzhi Zhai, Zhenliang Li, Chao Peng, and Yang Chen
Atmos. Chem. Phys., 23, 1147–1167, https://doi.org/10.5194/acp-23-1147-2023, https://doi.org/10.5194/acp-23-1147-2023, 2023
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We characterised non-refractory fine particulate matter (PM2.5) during winter in the Sichuan Basin (SCB), Southwest China. The factors driving severe aerosol pollution were revealed, highlighting the importance of rapid nitrate formation and intensive biomass burning. Nitrate was primarily formed through gas-phase oxidation during daytime and aqueous-phase oxidation during nighttime. Controlling nitrate and biomass burning will benefit the mitigation of haze formation in the SCB.
Haley M. Royer, Mira L. Pöhlker, Ovid Krüger, Edmund Blades, Peter Sealy, Nurun Nahar Lata, Zezhen Cheng, Swarup China, Andrew P. Ault, Patricia K. Quinn, Paquita Zuidema, Christopher Pöhlker, Ulrich Pöschl, Meinrat Andreae, and Cassandra J. Gaston
Atmos. Chem. Phys., 23, 981–998, https://doi.org/10.5194/acp-23-981-2023, https://doi.org/10.5194/acp-23-981-2023, 2023
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This paper presents atmospheric particle chemical composition and measurements of aerosol water uptake properties collected at Ragged Point, Barbados, during the winter of 2020. The result of this study indicates the importance of small African smoke particles for cloud droplet formation in the tropical North Atlantic and highlights the large spatial and temporal pervasiveness of smoke over the Atlantic Ocean.
Chunlin Zou, Tao Cao, Meiju Li, Jianzhong Song, Bin Jiang, Wanglu Jia, Jun Li, Xiang Ding, Zhiqiang Yu, Gan Zhang, and Ping'an Peng
Atmos. Chem. Phys., 23, 963–979, https://doi.org/10.5194/acp-23-963-2023, https://doi.org/10.5194/acp-23-963-2023, 2023
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In this study, PM2.5 samples were obtained during a winter haze event in Guangzhou, China, and light absorption and molecular composition of humic-like substances (HULIS) were investigated by UV–Vis spectrophotometry and ultrahigh-resolution mass spectrometry. The findings obtained present some differences from the results reported in other regions of China and significantly enhanced our understanding of HULIS evolution during haze bloom-decay processes in the subtropic region of southern China.
Rose Marie Miller, Robert M. Rauber, Larry Di Girolamo, Matthew Rilloraza, Dongwei Fu, Greg M. McFarquhar, Stephen Nesbitt, Luke D. Ziemba, Sarah Woods, and K. Lee Thornhill
EGUsphere, https://doi.org/10.5194/egusphere-2022-1429, https://doi.org/10.5194/egusphere-2022-1429, 2023
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The influence of human-produced aerosols on clouds remains one of the uncertainties in radiative forcing of Earth’s climate. Measurements of aerosol chemistry from sources around the Philippines illustrate the linkage between aerosol chemical composition and cloud droplet characteristics. Differences in aerosol chemical composition in the marine layer from biomass burning, industrial and ship-produced, and marine aerosol are shown to impact cloud microphysical structure just above cloud base.
Denis Leppla, Nora Zannoni, Leslie Kremper, Jonathan Williams, Christopher Pöhlker, Marta Sá, Maria Christina Solci, and Thorsten Hoffmann
Atmos. Chem. Phys., 23, 809–820, https://doi.org/10.5194/acp-23-809-2023, https://doi.org/10.5194/acp-23-809-2023, 2023
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Chiral chemodiversity plays a critical role in biochemical processes such as insect and plant communication. Here we report on the measurement of chiral-specified secondary organic aerosol in the Amazon rainforest. The results show that the chiral ratio is mainly determined by large-scale emission processes. Characteristic emissions of chiral aerosol precursors from different forest ecosystems can thus provide large-scale information on different biogenic sources via chiral particle analysis.
Tingting Feng, Yingkun Wang, Weiwei Hu, Ming Zhu, Wei Song, Wei Chen, Yanyan Sang, Zheng Fang, Wei Deng, Hua Fang, Xu Yu, Cheng Wu, Bin Yuan, Shan Huang, Min Shao, Xiaofeng Huang, Lingyan He, Young Ro Lee, Lewis Gregory Huey, Francesco Canonaco, Andre S. H. Prevot, and Xinming Wang
Atmos. Chem. Phys., 23, 611–636, https://doi.org/10.5194/acp-23-611-2023, https://doi.org/10.5194/acp-23-611-2023, 2023
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To investigate the impact of aging processes on organic aerosols (OA), we conducted a comprehensive field study at a continental remote site using an on-line mass spectrometer. The results show that OA in the Chinese outflows were strongly influenced by upwind anthropogenic emissions. The aging processes can significantly decrease the OA volatility and result in a varied viscosity of OA under different circumstances, signifying the complex physiochemical properties of OA in aged plumes.
Yiyu Cai, Chenshuo Ye, Wei Chen, Weiwei Hu, Wei Song, Yuwen Peng, Shan Huang, Jipeng Qi, Sihang Wang, Chaomin Wang, Caihong Wu, Zelong Wang, Baolin Wang, Xiaofeng Huang, Lingyan He, Sasho Gligorovski, Bin Yuan, Min Shao, and Xinming Wang
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2023-8, https://doi.org/10.5194/acp-2023-8, 2023
Revised manuscript accepted for ACP
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We studied the variability and molecular composition of ambient oxidized organic nitrogen (OON) in both gas and particle phases using a state-of-the-art online mass spectrometer in urban air. Biomass burning and secondary formation were found to be the two major sources for OONs. Daytime nitrate radical chemistry for OON formation was important than previous thought. Our results improved the understanding of the sources and molecular composition of OON in the polluted urban atmosphere.
Daniel J. Bryant, Beth S. Nelson, Stefan J. Swift, Sri Hapsari Budisulistiorini, Will S. Drysdale, Adam R. Vaughan, Mike J. Newland, James R. Hopkins, James M. Cash, Ben Langford, Eiko Nemitz, W. Joe F. Acton, C. Nicholas Hewitt, Tuhin Mandal, Bhola R. Gurjar, Shivani, Ranu Gadi, James D. Lee, Andrew R. Rickard, and Jacqueline F. Hamilton
Atmos. Chem. Phys., 23, 61–83, https://doi.org/10.5194/acp-23-61-2023, https://doi.org/10.5194/acp-23-61-2023, 2023
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This paper investigates the sources of isoprene and monoterpene compounds and their particulate-phase oxidation products in Delhi, India. This was done to improve our understanding of the sources, concentrations, and fate of volatile emissions in megacities. By studying the chemical composition of offline filter samples, we report that a significant share of the oxidised organic aerosol in Delhi is from isoprene and monoterpenes. This has implications for human health and policy development.
Li Li, Qiyuan Wang, Jie Tian, Huikun Liu, Yong Zhang, Steven Sai Hang Ho, Weikang Ran, and Junji Cao
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-786, https://doi.org/10.5194/acp-2022-786, 2022
Preprint under review for ACP
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The Tibetan Plateau has a unique geographical location, but there is a lack of detailed research on the real-time characteristics of full aerosol composition. The finding from this study elaborated the changes of chemical characteristics between transport and local fine particles during premonsoon, revealed the size distribution and the mixing states of different individual particles, highlighted the contributions of photooxidation and aqueous reaction to the formation of the secondary species.
Can Wu, Cong Cao, Jianjun Li, Shaojun Lv, Jin Li, Xiaodi Liu, Si Zhang, Shijie Liu, Fan Zhang, Jingjing Meng, and Gehui Wang
Atmos. Chem. Phys., 22, 15621–15635, https://doi.org/10.5194/acp-22-15621-2022, https://doi.org/10.5194/acp-22-15621-2022, 2022
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Over the past decade, the relative abundance of NH4NO3 in aerosol has been enhanced in most urban areas of China, which profoundly affects the PM2.5 pollution episodes. Our work finds that fine-particle nitrate and ammonium exhibited distinct, different physicochemical behaviors in the aerosol aging process.
Helen L. Fitzmaurice and Ronald C. Cohen
Atmos. Chem. Phys., 22, 15403–15411, https://doi.org/10.5194/acp-22-15403-2022, https://doi.org/10.5194/acp-22-15403-2022, 2022
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We develop a novel method for finding heavy-duty vehicle (HDV) emission factors (g PM kg fuel) using regulatory sensor networks and publicly available traffic data. We find that particulate matter emission factors have decreased by a factor of ~ 9 in the past decade in the San Francisco Bay area. Because of the wide availability of similar data sets across the USA and globally, this method could be applied to other settings to understand long-term trends and regional differences in HDV emissions.
Cited articles
Adams, P. J., Seinfeld, J. H., and Koch, D. M.: Global concentration of
tropospheric sulfate, nitrate and ammonium aerosol simulated in a general
circulation model, J. Geophys. Res., 104, 13791–13823,
https://doi.org/10.1029/1999JD900083, 1999.
Akagi, S. K., Yokelson, R. J., Wiedinmyer, C., Alvarado, M. J., Reid, J. S.,
Karl, T., Crounse, J. D., and Wennberg, P. O.: Emission factors for open and
domestic biomass burning for use in atmospheric models, Atmos. Chem. Phys.,
11, 4039–4072, https://doi.org/10.5194/acp-11-4039-2011, 2011.
Aksoyoglu, S., Ciarelli, G., El-Haddad, I., Baltensperger, U., and
Prévôt, A. S. H.: Secondary inorganic aerosols in Europe: sources and
the significant influence of biogenic VOC emissions, especially on ammonium
nitrate, Atmos. Chem. Phys., 17, 7757–7773,
https://doi.org/10.5194/acp-17-7757-2017, 2017.
Alastuey, A., Querol, X., Rodríguez, S., Plana, F., Lopez-Soler, A.,
Ruiz, C., and Mantilla, E.: Monitoring of atmospheric particulate matter
around sources of inorganic secondary inorganic aerosol, Atmos. Environ.,
38, 4979–4992, https://doi.org/10.1016/j.atmosenv.2004.06.026, 2004.
Alastuey, A., Querol, X., Aas, W., Lucarelli, F., Pérez, N., Moreno, T.,
Cavalli, F., Areskoug, H., Balan, V., Catrambone, M., Ceburnis, D., Cerro, J.
C., Conil, S., Gevorgyan, L., Hueglin, C., Imre, K., Jaffrezo, J.-L., Leeson,
S. R., Mihalopoulos, N., Mitosinkova, M., O'Dowd, C. D., Pey, J., Putaud,
J.-P., Riffault, V., Ripoll, A., Sciare, J., Sellegri, K., Spindler, G., and
Yttri, K. E.: Geochemistry of PM10 over Europe during the EMEP intensive
measurement periods in summer 2012 and winter 2013, Atmos. Chem. Phys., 16,
6107–6129, https://doi.org/10.5194/acp-16-6107-2016, 2016.
Aneja, V. P., Chauhan, J. P., and Walker, J. T.: Characterization of
atmospheric ammonia emissions from swine waste storage and treatment
lagoons, J. Geophys. Res., 105, 11535–11545, https://doi.org/10.1029/2000JD900066,
2000.
Arsene, C., Olariu, R. I., and Mihalopoulos, N.: Chemical composition of
rainwater in the north-eastern Romania, Iasi region (2003–2006), Atmos.
Environ., 41, 9452–9467, https://doi.org/10.1016/j.atmosenv.2007.08.046, 2007.
Arsene, C., Olariu, R. I., Zarmpas, P., Kanakidou, M., and Mihalopoulos, N.:
Ion composition of coarse and fine particles in Iasi, north-eastern Romania.
Implications for aerosols chemistry in the area, Atmos. Environ., 45,
906–916, https://doi.org/10.1029/2000JD900066, 2011.
Athanasopoulou, E., Tombrou, M., Pandis, S. N., and Russell, A. G.: The role
of sea-salt emissions and heterogeneous chemistry in the air quality of
polluted coastal areas, Atmos. Chem. Phys., 8, 5755–5769,
https://doi.org/10.5194/acp-8-5755-2008, 2008.
Bacarella, A. L., Grunwald, E., Marshall, H. P., and Purlee, E. L.: The
potentiometric measurement of acid dissociation constants and pH in the
system methanol-water. pKa values for carboxylic acids and
anilinium ions, J. Org. Chem., 20, 747–762, https://doi.org/10.1021/jo01124a007, 1955.
Backes, A. M., Aulinger, A., Bieser, J., Matthias, V., and Quante, M.:
Ammonia emissions in Europe, part II: How ammonia emission abatement
strategies affect secondary aerosols, Atmos. Environ., 126, 153–161,
https://doi.org/10.1016/j.atmosenv.2015.11.039, 2016.
Bardouki, H., Liakakou, H., Economou, C., Sciare, J., Smolik, J., Zdimal, V.,
Eleftheriadis, K., Lazaridis, M., Dye, C., and Mihalopoulos, N.: Chemical
composition of size-resolved atmospheric aerosols in the eastern
Mediterranean during summer and winter, Atmos. Environ., 37, 195–208,
https://doi.org/10.1016/S1352-2310(02)00859-2, 2003.
Behera, S. N. and Sharma, M.: Transformation of atmospheric ammonia and acid
gases into components of PM2.5: an environmental chamber study, Environ.
Sci. Pollut. R., 19, 1187–1197, https://doi.org/10.4209/aaqr.2012.11.0328, 2012.
Behera, S. N., Betha, R., and Balasubramanian, R.: Insights into chemical
coupling among acidic gases, ammonia and secondary inorganic aerosols,
Aerosol Air Qual. Res., 13, 1282–1296, https://doi.org/10.1007/s11356-011-0635-9, 2013.
Bressi, M., Sciare, J., Ghersi, V., Bonnaire, N., Nicolas, J. B., Petit,
J.-E., Moukhtar, S., Rosso, A., Mihalopoulos, N., and Féron, A.: A
one-year comprehensive chemical characterisation of fine aerosol (PM2.5)
at urban, suburban and rural background sites in the region of Paris
(France), Atmos. Chem. Phys., 13, 7825–7844,
https://doi.org/10.5194/acp-13-7825-2013, 2013.
Brook, R. D.: Cardiovascular effects of air pollution, Clin. Sci., 115,
175–187, https://doi.org/10.1042/CS20070444, 2008.
Christian, T. J., Yokelson, R. J., Cárdenas, B., Molina, L. T., Engling, G.,
and Hsu, S.-C.: Trace gas and particle emissions from domestic and industrial
biofuel use and garbage burning in central Mexico, Atmos. Chem. Phys., 10,
565–584, https://doi.org/10.5194/acp-10-565-2010, 2010.
Clegg, S. L., Brimblecombe, P., and Wexler, A. S.: Thermodynamic model of
the system H+–NH
Cziczo, D. J., Nowak, J. B., Hu, J. H., and Abbatt, J. P. D.: Infrared
spectroscopy of model tropospheric aerosols as a function of relative
humidity: observation of deliquescence and crystallization, J. Geophys.
Res., 102, 18843–18850, https://doi.org/10.1029/97JD01361, 1997.
Directive 2008/50/EC: European Parliament and of the Council of 21 May 2008
on ambient air quality and cleaner air for Europe, Official Journal L 152,
11/06/2008, 0001–0044, 2008.
Dockery, D. W., Cunningham, J., Damokosh, A. I., Neas, L. M., Spengler, J.
D., Koutrakis, P., Ware, J. H., Raizenne, M., and Speizer, F. E.: Health
effects of acid aerosols on North American children: respiratory symptoms,
Environ. Health Persp., 104, 500–505, 1996.
Dominici, F., Peng, D. K., Bell, M. L., Pham, L., McDermott, A., Zeger, S.
L., and Samet, J. M.: Fine particulate air pollution and hospital admission
for cardiovascular and respiratory diseases, JAMA, 295, 1127–1134,
https://doi.org/10.1001/jama.295.10.1127, 2006.
Dougle P. G., Veefkind J. P., and ten Brink, H. M.: Cristallisation of
mixtures of ammonium nitrate, ammonium sulfate and soot, J. Aerosol Sci., 29,
375–386, https://doi.org/10.1016/S0021-8502(97)10003-9, 1998.
European Environment Agency (EEA) Report: Air quality in Europe-2015 report,
ISSN 1977–8449, Report No. 5, 2015.
Fang, T., Guo, H., Zeng, L., Verma, V., Nenes, A., and Weber, R. J.: Highly
acidic ambient particles, soluble metals, and oxidative potential: A link
between sulfate and aerosol toxicity, Environ. Sci. Technol., 51,
2611–2620, https://doi.org/10.1021/acs.est.6b06151, 2017.
Fountoukis, C. and Nenes, A.: ISORROPIA II: a computationally efficient
thermodynamic equilibrium model for
K+–Ca2+–Mg2+–NH
Fountoukis, C., Nenes, A., Sullivan, A., Weber, R., Van Reken, T., Fischer,
M., Matías, E., Moya, M., Farmer, D., and Cohen, R. C.: Thermodynamic
characterization of Mexico City aerosol during MILAGRO 2006, Atmos. Chem.
Phys., 9, 2141–2156, https://doi.org/10.5194/acp-9-2141-2009, 2009.
Freney, E. J., Sellegri, K., Canonaco, F., Colomb, A., Borbon, A., Michoud,
V., Doussin, J.-F., Crumeyrolle, S., Amarouche, N., Pichon, J.-M., Bourianne,
T., Gomes, L., Prevot, A. S. H., Beekmann, M., and Schwarzenböeck, A.:
Characterizing the impact of urban emissions on regional aerosol particles:
airborne measurements during the MEGAPOLI experiment, Atmos. Chem. Phys., 14,
1397–1412, https://doi.org/10.5194/acp-14-1397-2014, 2014.
Gerasopoulos, E., Koulouri, E., Kalivitis, N., Kouvarakis, G., Saarikoski,
S., Mäkelä, T., Hillamo, R., and Mihalopoulos, N.: Size-segregated
mass distributions of aerosols over Eastern Mediterranean: seasonal
variability and comparison with AERONET columnar size-distributions, Atmos.
Chem. Phys., 7, 2551–2561, https://doi.org/10.5194/acp-7-2551-2007, 2007.
Guo, H., Xu, L., Bougiatioti, A., Cerully, K. M., Capps, S. L., Hite Jr., J.
R., Carlton, A. G., Lee, S.-H., Bergin, M. H., Ng, N. L., Nenes, A., and
Weber, R. J.: Fine-particle water and pH in the southeastern United States,
Atmos. Chem. Phys., 15, 5211–5228, https://doi.org/10.5194/acp-15-5211-2015,
2015.
Guo, H., Sullivan, A. P., Campuzano-Jost, P., Schroder, J. C.,
Lopez-Hilfiker, F. D., Dibb, J. E., Jimenez, J. L., Thornton, J. A., Brown,
S. S., Nenes, A., and Weber, R. J.: Fine particle pH and the partitioning of
nitric acid during winter in the northeastern United States, J. Geophys.
Res.-Atmos., 121, 10355–10376, https://doi.org/10.1002/2016JD025311, 2016.
Gwynn, R. C., Burnett, R. T., and Thurston, G. D.: A time-series analysis of
acidic particulate matter and daily mortality and morbidity in the Buffalo,
New York, region, Environ. Health Persp., 108, 125–133, 2000.
Harrison, R. M. and Kitto, A. M. N.: Estimation of the rate constant for the
reaction of acid sulfate aerosol with NH3 gas from atmospheric
measurements, J. Atmos. Chem., 15, 133–143, https://doi.org/10.1007/BF00053755, 1992.
Hasheminassab, S., Daher, N., Saffari, A., Wang, D., Ostro, B. D., and
Sioutas, C.: Spatial and temporal variability of sources of ambient fine
particulate matter (PM2.5) in California, Atmos. Chem. Phys., 14,
12085–12097, https://doi.org/10.5194/acp-14-12085-2014, 2014.
Hennigan, C. J., Izumi, J., Sullivan, A. P., Weber, R. J., and Nenes, A.: A
critical evaluation of proxy methods used to estimate the acidity of
atmospheric particles, Atmos. Chem. Phys., 15, 2775–2790,
https://doi.org/10.5194/acp-15-2775-2015, 2015.
Hitzenberger, R., Ctyroky, P., Berner, A., Tursic, J., Podkrajsek, B., and
Grgic, I.: Size distribution of black (BC) and total carbon (TC) in Vienna
and Ljubljana, Chemosphere, 65, 2106–2113,
https://doi.org/10.1016/j.chemosphere.2006.06.042, 2006.
Holton, J. R.: An Introduction to Dynamic Meteorology, 4th Edn., Academic
Press, New York, 1979.
Huang, X.-F., He, L.-Y., Hu, M., Canagaratna, M. R., Sun, Y., Zhang, Q., Zhu,
T., Xue, L., Zeng, L.-W., Liu, X.-G., Zhang, Y.-H., Jayne, J. T., Ng, N. L.,
and Worsnop, D. R.: Highly time-resolved chemical characterization of
atmospheric submicron particles during 2008 Beijing Olympic Games using an
Aerodyne High-Resolution Aerosol Mass Spectrometer, Atmos. Chem. Phys., 10,
8933–8945, https://doi.org/10.5194/acp-10-8933-2010, 2010.
Ianniello, A., Spataro, F., Esposito, G., Allegrini, I., Rantica, E., Ancora,
M. P., Hu, M., and Zhu, T.: Occurrence of gas phase ammonia in the area of
Beijing (China), Atmos. Chem. Phys., 10, 9487–9503,
https://doi.org/10.5194/acp-10-9487-2010, 2010.
Ianniello, A., Spataro, F., Esposito, G., Allegrini, I., Hu, M., and Zhu, T.:
Chemical characteristics of inorganic ammonium salts in PM2.5 in the
atmosphere of Beijing (China), Atmos. Chem. Phys., 11, 10803–10822,
https://doi.org/10.5194/acp-11-10803-2011, 2011.
Ichim, L., Vlaicu, M., Draxineanu, A., and Alexandru, C.: Populatia Romaniei pe
localitati la 1 Ianuarie 2016, in INS 2016, edited by: Iagar, E. M., Pisica, S.,
and Baltateanu, L., ISSN: 2066-2181, Institutul National de Statistica, Romania, 130 pp., 2016.
IPCC, 2013: Summary for Policymakers, in: Climate Change 2013: The Physical
Science Basis. Contribution of Working Group I to the Fifth Assessment Report
of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F.,
Qin, D., Plattner, G. K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A.,
Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, United Kingdom
and New York, NY, USA, 1–30, https://doi.org/10.1017/CBO9781107415324.004, 2013.
ISORROPIA: http://isorropia.eas.gatech.edu/, last access: 11
July 2017.
James, P. M.: An objective classification method for Hess and Brezowsky
Grosswetterlagen over Europe, Theor. Appl. Climatol., 88, 17–42,
https://doi.org/10.1007/s00704-006-0239-3, 2007.
Jang, M., Czoschke, N. M., Lee, S., and Kamens, R. M.: Heterogeneous
atmospheric aerosol production by acid-catalyzed particle-phase reactions,
Science, 298, 814–817, https://doi.org/10.1126/science.1075798, 2002.
Kadowaki, S.: On the nature of the atmospheric oxidation processes of
SO2 to sulfate and of NO2 to nitrate on the basis of diurnal
variations of sulfate, nitrate, and other pollutants in an urban area,
Environ. Sci. Technol., 20, 1249–1253, https://doi.org/10.1021/es00154a009, 1986.
Kai, Z., Yuesi, W., Tianxue, W., Yousef, M., and Frank, M.: Properties of
nitrate, sulfate and ammonium in typical polluted atmospheric aerosols
(PM10) in Beijing, Atmos. Res., 84, 67–77,
https://doi.org/10.1016/j.atmosres.2006.05.004, 2007.
Karydis, V. A., Tsimpidi, A. P., Lei, W., Molina, L. T., and Pandis, S. N.:
Formation of semivolatile inorganic aerosols in the Mexico City Metropolitan
Area during the MILAGRO campaign, Atmos. Chem. Phys., 11, 13305–13323,
https://doi.org/10.5194/acp-11-13305-2011, 2011.
Karydis, V. A., Tsimpidi, A. P., Pozzer, A., Astitha, M., and Lelieveld, J.:
Effects of mineral dust on global atmospheric nitrate concentrations, Atmos.
Chem. Phys., 16, 1491–1509, https://doi.org/10.5194/acp-16-1491-2016, 2016.
Keene, W. C., Pszenny, A. A. P., Maben, J. R., Stevenson, E., and Wall, A.:
Closure evaluation of size-resolved aerosol pH in the New England coastal
atmosphere during summer, J. Geophys. Res., 109, D23307,
https://doi.org/10.1029/2004JD004801, 2004.
Kocak, M., Mihalopoulos, N., and Kubilay, N.: Contributions of natural
sources to high PM10 and PM2.5 events in the eastern
Mediterranean, Atmos. Environ., 41, 3806–3818,
https://doi.org/10.1016/j.atmosenv.2007.01.009, 2007.
Laongsri, B. and Harrison, R. M.: Atmospheric behaviour of particulate
oxalate at UK urban background and rural sites, Atmos. Environ., 71,
319–326, https://doi.org/10.1016/j.atmosenv.2013.02.015, 2013.
Lelieveld, J., Evans, J. S., Fnais, M., Giannadaki, D., and Pozzer, A.: The
contribution of outdoor air pollution sources to premature mortality on a
global scale, Nature, 525, 367–371, https://doi.org/10.1038/nature15371, 2015.
Li, T. C., Yuan, C. S., Lo, K. C., Hung, C. H., Wu, S. P., and Tong, C.:
Seasonal variation and chemical characteristics of atmospheric particles at
Three Islands in the Taiwan Street, Aerosol Air Qual. Res., 15, 2277–2290,
https://doi.org/10.4209/aaqr.2015.03.0153, 2015.
Li, W., Shi, Z., Zhang, D., Zhang, X., Li, P., Feng, Q., Yuan, Q., and Wang,
W.: Haze particles over a coal-burning region in the China Loess Plateau in
winter: three flight missions in December 2010, J. Geophys. Res., 117,
D12306, https://doi.org/10.1029/2012JD017720, 2012.
Markovic, M. Z., Hayden, K. L., Murphy, J. G., Makar, P. A., Ellis, R. A.,
Chang, R. Y.-W., Slowik, J. G., Mihele, C., and Brook, J.: The effect of
meteorological and chemical factors on the agreement between observations and
predictions of fine aerosol composition in southwestern Ontario during
BAQS-Met, Atmos. Chem. Phys., 11, 3195–3210,
https://doi.org/10.5194/acp-11-3195-2011, 2011.
Masiol, M., Squizzato, S., Ceccato, D., Rampazzo, G., and Pavoni, B.:
Determining the influence of different atmospheric circulation patterns on
PM10 chemical composition in a source apportionment study, Atmos.
Environ., 63, 117–124, https://doi.org/10.1016/j.atmosenv.2012.09.025, 2012.
Matsumoto, K. and Tanaka, H.: Formation and dissociation of atmospheric
particulate nitrate and chloride: an approach based on phase equilibrium,
Atmos. Environ., 30, 639–648, https://doi.org/10.1016/1352-2310(95)00290-1, 1996.
Meng, Z. Y., Seinfeld, J. H., Saxena, P., and Kim, Y. P.: Atmospheric gas –
aerosol equilibrium IV. Thermodynamics of carbonates, Aerosol Sci. Tech., 23,
131–154, https://doi.org/10.1080/02786829508965300, 1995.
Meng, Z. Y., Lin, W. L., Jiang, X. M., Yan, P., Wang, Y., Zhang, Y. M., Jia,
X. F., and Yu, X. L.: Characteristics of atmospheric ammonia over Beijing,
China, Atmos. Chem. Phys., 11, 6139–6151,
https://doi.org/10.5194/acp-11-6139-2011, 2011.
Meskhidze, N., Chameides, W. L., Nenes, A., and Chen, G.: Iron mobilization
in mineral dust: Can anthropogenic SO2 emissions affect ocean
productivity?, Geophys. Res. Lett., 30, 2085, https://doi.org/10.1029/2003GL018035, 2003.
Metzger, S., Mihalopoulos, N., and Lelieveld, J.: Importance of mineral
cations and organics in gas-aerosol partitioning of reactive nitrogen
compounds: case study based on MINOS results, Atmos. Chem. Phys., 6,
2549–2567, https://doi.org/10.5194/acp-6-2549-2006, 2006.
Nenes, A., Pilinis, C., and Pandis, S. N.: Continued development and testing
of a new thermodynamic aerosol module for urban and regional air quality
models, Atmos. Environ., 33, 1553–1560, https://doi.org/10.1016/S1352-2310(98)00352-5,
1999.
Nowak, J. B., Huey, L. G., Russell, A. G., Tian, D., Neuman, J. A., Orsini,
D., Sjostedt, S. J., Sullivan, A. P., Tanner, D. J., Weber, R. J., Nenes, A.,
Edgerton, E., and Fehsenfeld, F. C.: Analysis of urban gas phase ammonia
measurements from the 2002 Atlanta Aerosol Nucleation and Real-Time
Characterization Experiment (ANARChE), J. Geophys. Res., 111, D17308,
https://doi.org/10.1029/2006JD007113, 2006.
Olariu, R. I., Vione, D., Grinberg, N., and Arsene C.: Applications of liquid
chromatographic techniques in the chemical characterization of atmospheric
aerosols, J. Liq. Chromatogr. R. T., 38, 322–348,
https://doi.org/10.1080/10826076.2014.941256, 2015.
Ostro, B., Malig, B., Broadwin, R., Basu, R., Gold, E. B., Bromberger, J. T.,
Derby, C., Feinstein, S., Greendale, G. A., Jackson, E. A., Kravitz, H. M.,
Matthews, K. A., Sternfeld, B., Tomey, K., Green, R. R., and Green, R.:
Chronic PM2.5 exposure and inflammation: determining sensitive subgroups
in mid-life women, Environ. Res., 132, 168–175,
https://doi.org/10.1016/j.envres.2014.03.042, 2014.
Pachon, J. E., Weber, R. J., Zhang, X., Mulholland, J. A., and Russell, A.
G.: Revising the use of potassium (K) in the source apportionment of
PM2.5, Atmos. Pollut. Res., 4, 14–21, https://doi.org/10.5094/APR.2013.002, 2013.
Pandolfi, M., Amato, F., Reche, C., Alastuey, A., Otjes, R. P., Blom, M. J.,
and Querol, X.: Summer ammonia measurements in a densely populated
Mediterranean city, Atmos. Chem. Phys., 12, 7557–7575,
https://doi.org/10.5194/acp-12-7557-2012, 2012.
Park, R. J., Jacob, D. J., Field, B. D., Yantosca, R. M., and Chin, M.:
Natural and transboundary pollution influences on sulfate-nitrate-ammonium
aerosols in the United States: implications for policy, J. Geophys. Res.,
109, D15204, https://doi.org/10.1029/2003JD004473, 2004.
Pathak, R. K., Wu, W. S., and Wang, T.: Summertime PM2.5 ionic species in four
major cities of China: nitrate formation in an ammonia-deficient atmosphere, Atmos.
Chem. Phys., 9, 1711–1722, https://doi.org/10.5194/acp-9-1711-2009, 2009.
Pathak, R. K., Wang, T., and Wu, W. S.: Nighttime enhancement of PM2.5
nitrate in ammonia-poor atmospheric conditions in Beijing and Shanghai:
Plausible contributions of heterogeneous hydrolysis of N2O5 and
HNO3 partitioning, Atmos. Environ., 45, 1183–1191,
https://doi.org/10.1016/j.atmosenv.2010.09.003, 2011.
Pope, C. A., Burnett, R. T., Thurston, G. D., Thun, M. J., Calle, E. E.,
Krewski, D., and Godleski, J. J.: Cardiovascular mortality and long-term
exposure to particulate air pollution: epidemiological evidence of general
pathophysiological pathways of disease, Circulation, 109, 71–77,
https://doi.org/10.1161/01.CIR.0000108927.80044.7F, 2004.
Prinn, R. G.: The cleansing capacity of atmosphere, Annu. Rev. Env. Resour.,
28,
https://doi.org/10.1146/annurev.energy.28.011503.163425, 2003.
Querol, X., Alastuey, A., Ruiz, C. R., Artinano, B., Hansson, H. C.,
Harrison, R. M., Buringh, E., ten Brink, H. M., Lutz, M., Bruckmann, P.,
Straehl, P., and Schneider, J.: Speciation and origin of PM10 and
PM2.5 in selected European cities, Atmos. Environ., 38, 6547–6555,
https://doi.org/10.1016/j.atmosenv.2004.08.037, 2004.
Ravishankara, A. R.: Heterogeneous and multiphase chemistry in the
troposphere, Science, 276, 1058–1065, https://doi.org/10.1126/science.276.5315.1058,
1997.
Rolph, G., Stein, A., and Stunder, B.: Real-time Environmental Applications
and Display sYstem: READY, Environ. Modell. Softw., 95, 210–228,
https://doi.org/10.1016/j.envsoft.2017.06.025, 2017.
Sandrini, S., van Pinxteren, D., Giulianelli, L., Herrmann, H., Poulain, L.,
Facchini, M. C., Gilardoni, S., Rinaldi, M., Paglione, M., Turpin, B. J.,
Pollini, F., Bucci, S., Zanca, N., and Decesari, S.: Size-resolved aerosol
composition at an urban and a rural site in the Po Valley in summertime:
implications for secondary aerosol formation, Atmos. Chem. Phys., 16,
10879–10897, https://doi.org/10.5194/acp-16-10879-2016, 2016.
Schmidl, C., Marr, I. L., Caseiro, A., Kotianova, P., Berner, A., Bauer, H.,
Kasper-Giebla A., and Puxbaum, H.: Chemical characterisation of fine
particle emissions from wood stove combustion of common woods growing in
mid-European Alpine regions, Atmos. Environ., 42, 126–141,
https://doi.org/10.1016/j.atmosenv.2007.09.028, 2008.
Schwarz, J., Chi, X., Maenhaut, W., Civis, M., Hovorka, J., and Smolik, J.:
Elemental and organic carbon in atmospheric aerosols at downtown and
suburban sites in Prague, Atmos. Res., 90, 287–302,
https://doi.org/10.1016/j.atmosres.2008.05.006, 2008.
Schwarz, J., Stefancova, L., Maenhaut, W., Smolik, J., and Zdimal, V.: Mass
and chemically speciated size distribution of Prague aerosol using an
aerosol dryer – The influence of air mass origin, Sci Total. Environ., 437,
348–362, https://doi.org/10.1016/j.scitotenv.2012.07.050, 2012.
Seinfeld, J. H. and Pandis, S. N.: Atmospheric Chemistry and Physics: From
Air Pollution to Climate Change, Wiley, New York, 1998.
Sharma, M., Kishore, S., Tripathi, S. N., and Behera, S. N.: Role of
atmospheric ammonia in the secondary particulate matter: a study at Kanpur,
India, J. Atmos. Chem., 58, 1–17, https://doi.org/10.1007/s10874-007-9074-x, 2007.
Shon, Z., Ghosh, S., Kim, K., Song, S., Jung, K., and Kim, N.: Analysis of
water-soluble ions and their precursor gases over diurnal cycle, Atmos. Res.,
132–133, 309–321, https://doi.org/10.1016/j.atmosres.2013.06.003, 2013.
Sicard, P., Lesne, O., Alexandre, N., Mangin, A., and Collomp, R.: Air
quality trends and potential health effects e development of an aggregate
risk index, Atmos. Environ., 45, 1145–1153,
https://doi.org/10.1016/j.atmosenv.2010.12.052, 2011.
Stein, A. F., Draxler, R. R., Rolph, G. D., Stunder, B. J. B., Cohen, M. D.,
and Ngan, F.: NOAA's HYSPLIT atmospheric transport and dispersion modeling
system, B. Am. Meteorol. Soc., 96, 2059–2077, https://doi.org/10.1175/BAMS-D-14-00110.1,
2015.
Stelson, A. W. and Seinfeld, J. H.: Relative humidity and pH dependence of
the vapour pressure of ammonium nitrate-nitric acid solutions at
25 ∘C, Atmos. Environ., 16, 993–1000,
https://doi.org/10.1016/0004-6981(82)90185-8, 1982.
Stockwell, W. R. and Calvert, J. G.: The mechanism of the HO-SO2
reaction, Atmos. Environ., 17, 2231–2235, https://doi.org/10.1016/0004-6981(83)90220-2,
1983.
Stockwell, W. R., Watson, J. G., Robinson, N. F., Steiner, W., and Sylte,
W.: The ammonium nitrate particle equivalent of NOx emissions for
wintertime conditions in Central California's San Joaquin Valley, Atmos.
Environ., 34, 4711–4717, https://doi.org/10.1016/S1352-2310(00)00148-5, 2000.
Sun, J., Zhang, Q., Canagaratna, M. R., Zhang, Y., Ng, N. L., Sun, Y.,
Jayne, J. T., Zhang, X., Zhang, X., and Worsnop, D. R.: Highly time- and
size-resolved characterization of submicron aerosol particles in Beijing
using an Aerodyne Aerosol Mass Spectrometer, Atmos. Environ., 44, 131–140,
https://doi.org/10.1016/j.atmosenv.2009.03.020, 2010.
Sutton, M. A., Howard, C. M., Erisman, J. W., Billen, G., Bleeker, A.,
Grennfelt, P., van Grinsven, H., and Grizzetti, B.: The European Nitrogen
Assessment: Sources, Effects and Policy Perspectives, Cambridge University
Press, 2011.
Tolis, E. I., Saraga, D. E., Lytra, M. K., Papathanasiou, A. C., Bougaidis,
P. N., Prekas-Patronakis, O. E., Ioannidis, I. I., and Bartzis, J. G.:
Concentration and chemical composition of PM2.5 for a one-year period at
Thessaloniki, Greece: a comparison between city and port area, Atmos.
Environ., 113, 197–207, https://doi.org/10.1016/j.atmosenv.2015.05.014, 2015.
Tositti, L., Brattich, E., Masiol, M., Baldacci, D., Ceccato, D.,
Parmeggiani, S., Stracquadanio, M., and Zappoli, S.: Source apportionment of
particulate matter in a large city of southeastern Po Valley (Bologna,
Italy), Environ. Sci. Pollut. R., 21, 872–890,
https://doi.org/10.1007/s11356-013-1911-7, 2014.
Trebs, I., Metzger, S., Meixner, F. X., Helas, G., Hoffer, A., Andreae, M.
O., Moura, M. A. L., da Silva Jr., R. S., Rudich, Y., Falkovich, A. H.,
Artaxo, P., and Slanina, J.: The
NH
Tsai, Y. I. and Cheng, M. T.: Visibility and aerosol chemical compositions
near the coastal area in Central Taiwan, Sci. Total Environ., 231, 37–51,
https://doi.org/10.1016/S0048-9697(99)00093-5, 1999.
Tursic, J., Podkrajsek, B., Grgic, I., Ctyroky, P., Berner, A., Dusek, U.,
and Hitzenberger, R.: Chemical composition and hygroscopic properties of
size-segregated aerosol particles collected at the Adriatic coast of
Slovenia, Chemosphere, 63, 1193–1202,
https://doi.org/10.1016/j.chemosphere.2005.08.040, 2006.
Utsunomiya, A. and Wakamatsu, S.: Temperature and humidity dependence on
aerosol composition in the northern Kyushu, Japan, Atmos. Environ., 30,
2379–2386, https://doi.org/10.1016/1352-2310(95)00350-9, 1996.
Vione, D., Maurino, V., Minero, C., and Pelizzetti, E.: The atmospheric
chemistry of hydrogen peroxide: A Review, Ann. Chim. (Rome), 93, 477–488,
2003.
Voutsa, D., Samara, C., Manoli, E., Lazarou, D., and Tzoumaka, P.: Ionic
composition of PM2.5 at urban sites of northern Greece: secondary
inorganic aerosol formation, Environ. Sci. Pollut. R., 21, 4995–5006,
https://doi.org/10.1007/s11356-013-2445-8, 2014.
Wang, H. L., Qiao, L. P., Lou, S. R., Zhou, M., Ding, A. J., Huang, H. Y.,
Chen, J. M., Wang, Q., Tao, S. K., Chen, C. H., Li, L., and Huang, C.:
Chemical composition of PM2.5 and meteorological impact among three
years in urban Shanghai, China, J. Clean. Prod., 112, 1302–1311,
https://doi.org/10.1016/j.jclepro.2015.04.099, 2016.
Wang, K., Zhang, Y., Nenes, A., and Fountoukis, C.: Implementation of dust
emission and chemistry into the Community Multiscale Air Quality modeling
system and initial application to an Asian dust storm episode, Atmos. Chem.
Phys., 12, 10209–10237, https://doi.org/10.5194/acp-12-10209-2012, 2012.
Wang, Y., Zhuang, G., Tang, A., Yuan, H., Sun, Y., Chen, Sh., and Zheng, A.:
The ion chemistry and the source of PM2.5 aerosol in Beijing, Atmos.
Environ., 39, 3771–3784, https://doi.org/10.1016/j.atmosenv.2005.03.013, 2005.
Wang, Y., Zhuang, G., Zhang, X., Huang, K., Xu, C., Tang, A., Chen, J., and
Zheng, A.: The ion chemistry, seasonal cycle, and sources of PM2.5 and
TSP aerosol in Shanghai, Atmos. Environ., 40, 2935–2952,
https://doi.org/10.1016/j.atmosenv.2005.12.051, 2006.
Wexler, A. S. and Clegg, S. L.: Atmospheric aerosol models for systems
including the ions H+, NH
WHO: Health Risks of Particulate Matter from Long-range Transbounday Air
Pollution, E88189. European Centre for Environment and Health, WHO Regional
Office for Europe, Denmark, 2006a.
WHO: WHO Air quality guidelines for particulate matter, ozone, nitrogen
dioxide and sulphur dioxide, Global update 2005, Summary of risk assessment,
WHO/SDE/PHE/ OEH/06.02, Geneva, Switzerland, 2006b.
Wonaschutz, A., Demattio, A., Wagner, R., Burkart, J., Zikova, N., Vodicka,
P., Ludwig, W., Steiner, G., Schwarz, J., and Hitzenberger, R.: Seasonality
of new particle formation in Vienna, Austria – Influence of air mass origin
and aerosol chemical composition, Atmos. Environ., 118, 118–126,
https://doi.org/10.1016/j.atmosenv.2015.07.035, 2015.
Yao, X. H., Lau, A. P. S., Fang, M., Chan, C. K., and Hu, M.: Size
distributions and formation of ionic species in atmospheric particulate
pollutants in Beijing, China: 1 – inorganic ions, Atmos. Environ., 37,
2991–3000, https://doi.org/10.1016/S1352-2310(03)00255-3, 2003.
Zhang, L. M., Gong, S. L., Padro, J., and Barrie, L.: A size segregated
particle dry deposition scheme for an atmospheric aerosol module, Atmos.
Environ., 35, 549–560, https://doi.org/10.1016/S1352-2310(00)00326-5, 2001.
Zhang, R., Wang, G., Guo, S., Zamora, M. L., Ying, Q., Lin, Y., Wang, W.,
Hu, M., and Wang, Y.: Formation of urban fine particulate matter, Chem.
Rev., 115, 3803–3855, https://doi.org/10.1021/acs.chemrev.5b00067, 2015.
Zhao, M., Wang, S., Tan, J., Hua, Y., Wu, D., and Hao, J.: Variation of
urban atmospheric ammonia pollution and its relation with PM2.5
chemical property in winter of Beijing, China, Aerosol Air Qual. Res., 16,
1378–1389, https://doi.org/10.4209/aaqr.2015.12.0699, 2016.
Short summary
In north-eastern Romania, enhancement in emission sources, changes in the mixed layer depth, and specific meteorological conditions were identified as critical factors controlling the seasonal variation in particulate ionic species. Particulate NH4+ and NO3− ions were assigned as critical parameters controlling aerosol chemistry. Long-range transport phenomena play an important role. Exploring aerosols' chemical composition and chemical processes still involves many challenges.
In north-eastern Romania, enhancement in emission sources, changes in the mixed layer depth, and...
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