Articles | Volume 17, issue 2
https://doi.org/10.5194/acp-17-1401-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-1401-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
31 Jan 2017
Research article |
| 31 Jan 2017
Atmospheric processes of organic pollutants over a remote lake on the central Tibetan Plateau: implications for regional cycling
Jiao Ren
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing, 100101, China
University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing, 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing,
100101, China
Chuanfei Wang
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing, 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing,
100101, China
Ping Gong
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing, 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing,
100101, China
Tandong Yao
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing, 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing,
100101, China
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Junwei Song, Harald Saathoff, Feng Jiang, Linyu Gao, Hengheng Zhang, and Thomas Leisner
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In scope of a field campaign in a suburban forest near Paris in the summer of 2022, we measured the reactivity of the nitrate radical (NO3) towards biogenic volatile organic compounds (BVOCs, e.g. monoterpenes) mainly below, but also above the canopy. NO3 reactivity was highest during nights with strong temperature inversions and decreased strongly with height. Reactions with BVOCs were the main removal process of NO3 throughout the diel cycle below the canopy.
Heidi Hellén, Rostislav Kouznetsov, Kaisa Kraft, Jukka Seppälä, Mika Vestenius, Jukka-Pekka Jalkanen, Lauri Laakso, and Hannele Hakola
Atmos. Chem. Phys., 24, 4717–4731, https://doi.org/10.5194/acp-24-4717-2024, https://doi.org/10.5194/acp-24-4717-2024, 2024
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Mixing ratios of C2-C5 NMHCs and methanethiol were measured on an island in the Baltic Sea using an in situ gas chromatograph. Shipping emissions were found to be an important source of ethene, ethyne, propene, and benzene. High summertime mixing ratios of methanethiol and dependence of mixing ratios on seawater temperature and height indicated the biogenic origin to possibly be phytoplankton or macroalgae. These emissions may have a strong impact on SO2 production and new particle formation.
Eleanor J. Derry, Tyler Elgiar, Taylor Y. Wilmot, Nicholas W. Hoch, Noah S. Hirshorn, Peter Weiss-Penzias, Christopher F. Lee, John C. Lin, A. Gannet Hallar, Rainer Volkamer, Seth N. Lyman, and Lynne E. Gratz
EGUsphere, https://doi.org/10.5194/egusphere-2024-1046, https://doi.org/10.5194/egusphere-2024-1046, 2024
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Mercury (Hg) is a globally-distributed neurotoxic pollutant. Atmospheric deposition is the main source of Hg to ecosystems. However, measurement biases hinder understanding of the origins and abundance of the more bioavailable oxidized form. We used an improved, calibrated measurement system to study air mass composition and transport of atmospheric Hg at a remote mountaintop site in the central U.S. Oxidized Hg originated upwind in the low to mid-free troposphere under clean, dry conditions.
Matthew M. Coggon, Chelsea E. Stockwell, Lu Xu, Jeff Peischl, Jessica B. Gilman, Aaron Lamplugh, Henry J. Bowman, Kenneth Aikin, Colin Harkins, Qindan Zhu, Rebecca H. Schwantes, Jian He, Meng Li, Karl Seltzer, Brian McDonald, and Carsten Warneke
Atmos. Chem. Phys., 24, 4289–4304, https://doi.org/10.5194/acp-24-4289-2024, https://doi.org/10.5194/acp-24-4289-2024, 2024
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Residential and commercial cooking emits pollutants that degrade air quality. Here, ambient observations show that cooking is an important contributor to anthropogenic volatile organic compounds (VOCs) emitted in Las Vegas, NV. These emissions are not fully presented in air quality models, and more work may be needed to quantify emissions from important sources, such as commercial restaurants.
Fabien Paulot, Gabrielle Pétron, Andrew M. Crotwell, and Matteo B. Bertagni
Atmos. Chem. Phys., 24, 4217–4229, https://doi.org/10.5194/acp-24-4217-2024, https://doi.org/10.5194/acp-24-4217-2024, 2024
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New data from the National Oceanic and Atmospheric Administration show that hydrogen (H2) concentrations increased from 2010 to 2019, which is consistent with the simulated increase in H2 photochemical production (mainly from methane). But this cannot be reconciled with the expected decrease (increase) in H2 anthropogenic emissions (soil deposition) in the same period. This shows gaps in our knowledge of the H2 biogeochemical cycle that must be resolved to quantify the impact of higher H2 usage.
Wenjie Wang, Bin Yuan, Hang Su, Yafang Cheng, Jipeng Qi, Sihang Wang, Wei Song, Xinming Wang, Chaoyang Xue, Chaoqun Ma, Fengxia Bao, Hongli Wang, Shengrong Lou, and Min Shao
Atmos. Chem. Phys., 24, 4017–4027, https://doi.org/10.5194/acp-24-4017-2024, https://doi.org/10.5194/acp-24-4017-2024, 2024
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This study investigates the important role of unmeasured volatile organic compounds (VOCs) in ozone formation. Based on results in a megacity of China, we show that unmeasured VOCs can contribute significantly to ozone fomation and also influence the determination of ozone control strategy. Our results show that these unmeasured VOCs are mainly from human sources.
Benjamin A. Nault, Katherine R. Travis, James H. Crawford, Donald R. Blake, Pedro Campuzano-Jost, Ronald C. Cohen, Joshua P. DiGangi, Glenn S. Diskin, Samuel R. Hall, L. Gregory Huey, Jose L. Jimenez, Kyung-Eun Kim, Young R. Lee, Isobel J. Simpson, Kirk Ullmann, and Armin Wisthaler
EGUsphere, https://doi.org/10.5194/egusphere-2024-596, https://doi.org/10.5194/egusphere-2024-596, 2024
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Ozone (O3) is a pollutant formed from the reactions of gases emitted from various sources. In urban areas, the density of human activities can increase the O3 formation rate (P(O3)); thus, impact air quality and health. Observations collected over Seoul, South Korea, are used to constrain P(O3). A high local P(O3) was found; however, local P(O3) was partly reduced due to compounds typically ignored. These observations also provide constraints for unmeasured compounds that will impact P(O3).
Romain Salignat, Matti Rissanen, Siddharth Iyer, Jean-Luc Baray, Pierre Tulet, Jean-Marc Metzger, Jérôme Brioude, Karine Sellegri, and Clémence Rose
Atmos. Chem. Phys., 24, 3785–3812, https://doi.org/10.5194/acp-24-3785-2024, https://doi.org/10.5194/acp-24-3785-2024, 2024
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Using mass spectrometry data collected at the Maïdo Observatory (2160 m a.s.l., Réunion), we provide the first detailed analysis of molecular cluster chemical composition specifically in the marine free troposphere. The abundance of the identified species is related both to in situ meteorological parameters and air mass history, which also provide insight into their origin. Our work makes an important contribution to documenting the chemistry and physics of the marine free troposphere.
Delaney B. Kilgour, Gordon A. Novak, Megan S. Claflin, Brian M. Lerner, and Timothy H. Bertram
Atmos. Chem. Phys., 24, 3729–3742, https://doi.org/10.5194/acp-24-3729-2024, https://doi.org/10.5194/acp-24-3729-2024, 2024
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Laboratory experiments with seawater mimics suggest ozone deposition to the surface ocean can be a source of reactive carbon to the marine atmosphere. We conduct both field and laboratory measurements to assess abiotic VOC composition and yields from ozonolysis of real surface seawater. We show that C5–C11 aldehydes contribute to the observed VOC emission flux. We estimate that VOCs generated by the ozonolysis of surface seawater are competitive with biological VOC production and emission.
Xiangdong Zheng, Wen Yang, Yuting Sun, Chunmei Geng, Yingying Liu, and Xiaobin Xu
Atmos. Chem. Phys., 24, 3759–3768, https://doi.org/10.5194/acp-24-3759-2024, https://doi.org/10.5194/acp-24-3759-2024, 2024
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Chen et al. (2022) attributed the nocturnal ozone enhancement (NOE) during the night of 31 July 2021 in the North China Plain (NCP) to "the direct stratospheric intrusion to reach the surface". We analyzed in situ data from the NCP. Our results do not suggest that there was a significant impact from the stratosphere on surface ozone during the NOE. We argue that the NOE was not caused by stratospheric intrusion but originated from fresh photochemical production in the lower troposphere.
James M. Roberts, Siyuan Wang, Patrick R. Veres, J. Andrew Neuman, Michael A. Robinson, Ilann Bourgeois, Jeff Peischl, Thomas B. Ryerson, Chelsea R. Thompson, Hannah M. Allen, John D. Crounse, Paul O. Wennberg, Samuel R. Hall, Kirk Ullmann, Simone Meinardi, Isobel J. Simpson, and Donald Blake
Atmos. Chem. Phys., 24, 3421–3443, https://doi.org/10.5194/acp-24-3421-2024, https://doi.org/10.5194/acp-24-3421-2024, 2024
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We measured cyanogen bromide (BrCN) in the troposphere for the first time. BrCN is a product of the same active bromine chemistry that destroys ozone and removes mercury in polar surface environments and is a previously unrecognized sink for active Br compounds. BrCN has an apparent lifetime against heterogeneous loss in the range 1–10 d, so it serves as a cumulative marker of Br-radical chemistry. Accounting for BrCN chemistry is an important part of understanding polar Br cycling.
Chengzhi Xing, Cheng Liu, Chunxiang Ye, Xiangguang Ji, Jingkai Xue, Jinping Ou, Hongyu Wu, and Qihou Hu
EGUsphere, https://doi.org/10.5194/egusphere-2024-461, https://doi.org/10.5194/egusphere-2024-461, 2024
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We learned the contributions of O3 and HONO to the production rates of OH in vertical space on the TP. A new insight was offered: the contributions of HONO and O3 to the production rates of OH on the TP are even greater than at lower-altitudes areas. This study will enrich the new understanding of vertical distribution of atmospheric components and explained the strong AOC on the TP.
Kai Qin, Wei Hu, Qin He, Fan Lu, and Jason Blake Cohen
Atmos. Chem. Phys., 24, 3009–3028, https://doi.org/10.5194/acp-24-3009-2024, https://doi.org/10.5194/acp-24-3009-2024, 2024
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We compute CH4 emissions and uncertainty on a mine-by-mine basis, including underground, overground, and abandoned mines. Mine-by-mine gas and flux data and 30 min observations from a flux tower located next to a mine shaft are integrated. The observed variability and bias correction are propagated over the emissions dataset, demonstrating that daily observations may not cover the range of variability. Comparisons show both an emissions magnitude and spatial mismatch with current inventories.
Fan Zhang, Binyu Xiao, Zeyu Liu, Yan Zhang, Chongguo Tian, Rui Li, Can Wu, Yali Lei, Si Zhang, Xinyi Wan, Yubao Chen, Yong Han, Min Cui, Cheng Huang, Hongli Wang, Yingjun Chen, and Gehui Wang
EGUsphere, https://doi.org/10.5194/egusphere-2024-652, https://doi.org/10.5194/egusphere-2024-652, 2024
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Mandatory use of low-sulfur fuel according to global sulfur limit regulation leads to large uncertainty on VOCs emission. Therefore, on-board test of VOCs from 9 typical cargo ships in China were carried out. Results showed that the switch of fuels from heavy fuel oil to diesel increased EFVOCs by 48% on average, enhancing both O3 and secondary organic aerosol formation potentials. This indicated the implementation of globally ultra-low-sulfur oil policy in the near future needs to be optimized.
Jian Wang, Lei Xue, Qianyao Ma, Feng Xu, Gaobin Xu, Shibo Yan, Jiawei Zhang, Jianlong Li, Honghai Zhang, Guiling Zhang, and Zhaohui Chen
EGUsphere, https://doi.org/10.5194/egusphere-2023-2935, https://doi.org/10.5194/egusphere-2023-2935, 2024
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This study investigated the distribution and sources of non-methane hydrocarbons (NMHCs) in the lower atmosphere over the marginal seas of China. NMHCs, a subset of volatile organic compounds (VOCs), play a crucial role in atmospheric chemistry. Derived from systematic atmospheric sampling in coastal cities and marginal sea regions, this study offer valuable insights into the interaction between land and sea in shaping offshore atmospheric NMHCs.
Yao Yan Huang and D. James Donaldson
Atmos. Chem. Phys., 24, 2387–2398, https://doi.org/10.5194/acp-24-2387-2024, https://doi.org/10.5194/acp-24-2387-2024, 2024
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Ground-level ozone interacts at the lake–land boundary; this is important to our understanding and modelling of atmospheric chemistry and air pollution in the lower atmosphere. We show that a steep ozone gradient occurs year-round moving inland up to 1 km from the lake and that this gradient is influenced by seasonal factors on the local land environment, where more rural areas are more greatly affected seasonally.
Arpit Awasthi, Baerbel Sinha, Haseeb Hakkim, Sachin Mishra, Varkrishna Mummidivarapu, Gurmanjot Singh, Sachin D. Ghude, Vijay Kumar Soni, Narendra Nigam, Vinayak Sinha, and Madhavan N. Rajeevan
EGUsphere, https://doi.org/10.5194/egusphere-2024-501, https://doi.org/10.5194/egusphere-2024-501, 2024
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Our study uses a data set of 111 VOCs from a PTR-ToF-MS 10k, PM10 and PM2.5 in a PMF source-receptor model to resolve 11 pollution sources validated with chemical fingerprints collected at the source. Crop residue burning and heating contribute ~50 % of the PM, while traffic and industrial emissions dominate the gas-phase VOCs burden and SOA formation potential (>60 %). Non-tailpipe emissions from CNG powered commercial vehicles dominate the transport sector contribution to the PM burden.
Katrin Müller, Jordis S. Tradowsky, Peter von der Gathen, Christoph Ritter, Sharon Patris, Justus Notholt, and Markus Rex
Atmos. Chem. Phys., 24, 2169–2193, https://doi.org/10.5194/acp-24-2169-2024, https://doi.org/10.5194/acp-24-2169-2024, 2024
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The Palau Atmospheric Observatory is introduced as an ideal site to detect changes in atmospheric composition and dynamics above the remote tropical western Pacific. We focus on the ozone sounding program from 2016–2021, including El Niño 2016. The year-round high convective activity is reflected in dominant low tropospheric ozone and high relative humidity. Their seasonal distributions are unique compared to other tropical sites and are modulated by the Intertropical Convergence Zone.
Ziyan Guo, Keding Lu, Pengxiang Qiu, Mingyi Xu, and Zhaobing Guo
Atmos. Chem. Phys., 24, 2195–2205, https://doi.org/10.5194/acp-24-2195-2024, https://doi.org/10.5194/acp-24-2195-2024, 2024
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The formation of secondary sulfate needs to be further explored. In this work, we simultaneously measured sulfur and oxygen isotopic compositions to gain an increased understanding of specific sulfate formation processes. The results indicated that secondary sulfate was mainly ascribed to SO2 homogeneous oxidation by OH radicals and heterogeneous oxidation by H2O2 and Fe3+ / O2. This study is favourable for deeply investigating the sulfur cycle in the atmosphere.
Imran A. Girach, Narendra Ojha, Prabha R. Nair, Kandula V. Subrahmanyam, Neelakantan Koushik, Mohammed M. Nazeer, Nadimpally Kiran Kumar, Surendran Nair Suresh Babu, Jos Lelieveld, and Andrea Pozzer
Atmos. Chem. Phys., 24, 1979–1995, https://doi.org/10.5194/acp-24-1979-2024, https://doi.org/10.5194/acp-24-1979-2024, 2024
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We investigate surface ozone variability in East Antarctica based on measurements and EMAC global model simulations during austral summer. Nearly half of the surface ozone is found to be of stratospheric origin. The east coast of Antarctica acts as a stronger sink of ozone than surrounding regions. Photochemical loss of ozone is counterbalanced by downward transport of ozone. The study highlights the intertwined role of chemistry and dynamics in governing ozone variations over East Antarctica.
Ying Zhang, Duzitian Li, Xu-Cheng He, Wei Nie, Chenjuan Deng, Runlong Cai, Yuliang Liu, Yishuo Guo, Chong Liu, Yiran Li, Liangduo Chen, Yuanyuan Li, Chenjie Hua, Tingyu Liu, Zongcheng Wang, Jiali Xie, Lei Wang, Tuukka Petäjä, Federico Bianchi, Ximeng Qi, Xuguang Chi, Pauli Paasonen, Yongchun Liu, Chao Yan, Jingkun Jiang, Aijun Ding, and Markku Kulmala
Atmos. Chem. Phys., 24, 1873–1893, https://doi.org/10.5194/acp-24-1873-2024, https://doi.org/10.5194/acp-24-1873-2024, 2024
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This study conducts a long-term observation of gaseous iodine oxoacids in two Chinese megacities, revealing their ubiquitous presence with peak concentrations (up to 0.1 pptv) in summer. Our analysis suggests a mix of terrestrial and marine sources for iodine. Additionally, iodic acid is identified as a notable contributor to sub-3 nm particle growth and particle survival probability.
Xinyuan Zhang, Lingling Wang, Nan Wang, Shuangliang Ma, Shenbo Wang, Ruiqin Zhang, Dong Zhang, Mingkai Wang, and Hongyu Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2913, https://doi.org/10.5194/egusphere-2023-2913, 2024
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Online observational data on particulate matter composition, gaseous pollutants, and meteorological conditions from ten sites in China before and during the COVID-19 pandemic were analyzed to investigate the variation in NH3 concentrations and particle pH and explore the promoting effect of increased pH values on HONO formation. This is the first study to discuss the reasons for the increase in AOC during the pandemic from the perspective of the influence of NH3 on HONO.
Guoxian Zhang, Renzhi Hu, Pinhua Xie, Changjin Hu, Xiaoyan Liu, Liujun Zhong, Haotian Cai, Bo Zhu, Shiyong Xia, Xiaofeng Huang, Xin Li, and Wenqing Liu
Atmos. Chem. Phys., 24, 1825–1839, https://doi.org/10.5194/acp-24-1825-2024, https://doi.org/10.5194/acp-24-1825-2024, 2024
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Comprehensive observation of HOx radicals was conducted at a coastal site in the Pearl River Delta. Radical chemistry was influenced by different air masses in a time-dependent way. Land mass promotes a more active photochemical process, with daily averages of 7.1 × 106 and 5.2 × 108 cm−3 for OH and HO2 respectively. The rapid oxidation process was accompanied by a higher diurnal HONO concentration, which influences the ozone-sensitive system and eventually magnifies the background ozone.
Sarah Albertin, Joël Savarino, Slimane Bekki, Albane Barbero, Roberto Grilli, Quentin Fournier, Irène Ventrillard, Nicolas Caillon, and Kathy Law
Atmos. Chem. Phys., 24, 1361–1388, https://doi.org/10.5194/acp-24-1361-2024, https://doi.org/10.5194/acp-24-1361-2024, 2024
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This study reports the first simultaneous records of oxygen (Δ17O) and nitrogen (δ15N) isotopes in nitrogen dioxide (NO2) and nitrate (NO3−). These data are combined with atmospheric observations to explore sub-daily N reactive chemistry and quantify N fractionation effects in an Alpine winter city. The results highlight the necessity of using Δ17O and δ15N in both NO2 and NO3− to avoid biased estimations of NOx sources and fates from NO3− isotopic records in urban winter environments.
Shigeyuki Ishidoya, Kazuhiro Tsuboi, Hiroaki Kondo, Kentaro Ishijima, Nobuyuki Aoki, Hidekazu Matsueda, and Kazuyuki Saito
Atmos. Chem. Phys., 24, 1059–1077, https://doi.org/10.5194/acp-24-1059-2024, https://doi.org/10.5194/acp-24-1059-2024, 2024
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A method evaluating techniques for carbon neutrality, such as carbon capture and storage (CCS), is important. This study presents a method to evaluate CO2 emissions from a cement plant based on atmospheric O2 and CO2 measurements. The method will also be useful for evaluating CO2 capture from flue gas at CCS plants, since the plants remove CO2 from the atmosphere without causing any O2 changes, just as cement plants do, differing only in the direction of CO2 exchange with the atmosphere.
Magdalena Pühl, Anke Roiger, Alina Fiehn, Alan M. Gorchov Negron, Eric A. Kort, Stefan Schwietzke, Ignacio Pisso, Amy Foulds, James Lee, James L. France, Anna E. Jones, Dave Lowry, Rebecca E. Fisher, Langwen Huang, Jacob Shaw, Prudence Bateson, Stephen Andrews, Stuart Young, Pamela Dominutti, Tom Lachlan-Cope, Alexandra Weiss, and Grant Allen
Atmos. Chem. Phys., 24, 1005–1024, https://doi.org/10.5194/acp-24-1005-2024, https://doi.org/10.5194/acp-24-1005-2024, 2024
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In April–May 2019 we carried out an airborne field campaign in the southern North Sea with the aim of studying methane emissions of offshore gas installations. We determined methane emissions from elevated methane measured downstream of the sampled installations. We compare our measured methane emissions with estimated methane emissions from national and global annual inventories. As a result, we find inconsistencies of inventories and large discrepancies between measurements and inventories.
Georgios I. Gkatzelis, Matthew M. Coggon, Chelsea E. Stockwell, Rebecca S. Hornbrook, Hannah Allen, Eric C. Apel, Megan M. Bela, Donald R. Blake, Ilann Bourgeois, Steven S. Brown, Pedro Campuzano-Jost, Jason M. St. Clair, James H. Crawford, John D. Crounse, Douglas A. Day, Joshua P. DiGangi, Glenn S. Diskin, Alan Fried, Jessica B. Gilman, Hongyu Guo, Johnathan W. Hair, Hannah S. Halliday, Thomas F. Hanisco, Reem Hannun, Alan Hills, L. Gregory Huey, Jose L. Jimenez, Joseph M. Katich, Aaron Lamplugh, Young Ro Lee, Jin Liao, Jakob Lindaas, Stuart A. McKeen, Tomas Mikoviny, Benjamin A. Nault, J. Andrew Neuman, John B. Nowak, Demetrios Pagonis, Jeff Peischl, Anne E. Perring, Felix Piel, Pamela S. Rickly, Michael A. Robinson, Andrew W. Rollins, Thomas B. Ryerson, Melinda K. Schueneman, Rebecca H. Schwantes, Joshua P. Schwarz, Kanako Sekimoto, Vanessa Selimovic, Taylor Shingler, David J. Tanner, Laura Tomsche, Krystal T. Vasquez, Patrick R. Veres, Rebecca Washenfelder, Petter Weibring, Paul O. Wennberg, Armin Wisthaler, Glenn M. Wolfe, Caroline C. Womack, Lu Xu, Katherine Ball, Robert J. Yokelson, and Carsten Warneke
Atmos. Chem. Phys., 24, 929–956, https://doi.org/10.5194/acp-24-929-2024, https://doi.org/10.5194/acp-24-929-2024, 2024
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This study reports emissions of gases and particles from wildfires. These emissions are related to chemical proxies that can be measured by satellite and incorporated into models to improve predictions of wildfire impacts on air quality and climate.
Jie Wang, Haichao Wang, Yee Jun Tham, Lili Ming, Zelong Zheng, Guizhen Fang, Cuizhi Sun, Zhenhao Ling, Jun Zhao, and Shaojia Fan
Atmos. Chem. Phys., 24, 977–992, https://doi.org/10.5194/acp-24-977-2024, https://doi.org/10.5194/acp-24-977-2024, 2024
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Many works report NO3 chemistry in inland regions while less target marine regions. We measured N2O5 and related species on a typical island and found intensive nighttime chemistry and rapid NO3 loss. NO contributed significantly to NO3 loss despite its sub-ppbv level, suggesting nocturnal NO3 reactions would be largely enhanced once free from NO emissions in the open ocean. This highlights the strong influences of urban outflow on downward marine areas in terms of nighttime chemistry.
Jun Zhou, Chunsheng Zhang, Aiming Liu, Bin Yuan, Yan Wang, Wenjie Wang, Jie-Ping Zhou, Yixin Hao, Xiao-Bing Li, Xianjun He, Xin Song, Yubin Chen, Suxia Yang, Shuchun Yang, Yanfeng Wu, Bin Jiang, Shan Huang, Junwen Liu, Jipeng Qi, Minhui Deng, Yibo Huangfu, and Min Shao
EGUsphere, https://doi.org/10.5194/egusphere-2023-2230, https://doi.org/10.5194/egusphere-2023-2230, 2024
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In-depth understanding of near-ground vertical and temporal photochemical ozone (O3) formation is crucial for mitigating O3 pollution. By utilizing a self-built vertical observation system, a direct net photochemical O3 production rate detection system, and an observation-based model, we have diagnosed the vertical distributions and formation mechanism of net photochemical O3 production rates and sensitivity in Pearl River Delta region, one of the most O3 polluted area in China.
Tanja J. Schuck, Johannes Degen, Eric Hintsa, Peter Hoor, Markus Jesswein, Timo Keber, Daniel Kunkel, Fred Moore, Florian Obersteiner, Matt Rigby, Thomas Wagenhäuser, Luke M. Western, Andreas Zahn, and Andreas Engel
Atmos. Chem. Phys., 24, 689–705, https://doi.org/10.5194/acp-24-689-2024, https://doi.org/10.5194/acp-24-689-2024, 2024
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We study the interhemispheric gradient of sulfur hexafluoride (SF6), a strong long-lived greenhouse gas. Its emissions are stronger in the Northern Hemisphere; therefore, mixing ratios in the Southern Hemisphere lag behind. Comparing the observations to a box model, the model predicts air in the Southern Hemisphere to be older. For a better agreement, the emissions used as model input need to be increased (and their spatial pattern changed), and we need to modify north–south transport.
Jérémy Gueffier, François Gheusi, Marie Lothon, Véronique Pont, Alban Philibert, Fabienne Lohou, Solène Derrien, Yannick Bezombes, Gilles Athier, Yves Meyerfeld, Antoine Vial, and Emmanuel Leclerc
Atmos. Chem. Phys., 24, 287–316, https://doi.org/10.5194/acp-24-287-2024, https://doi.org/10.5194/acp-24-287-2024, 2024
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This study investigates the link between weather regime and atmospheric composition at a Pyrenean observatory. Five years of meteorological data were synchronized on a daily basis and then, using a clustering method, separated into six groups of observation days, with most showing marked characteristics of different weather regimes (fair and disturbed weather, winter windstorms, foehn). Statistical differences in gas and particle concentrations appeared between the groups and are discussed.
Nathaniel Brockway, Peter K. Peterson, Katja Bigge, Kristian D. Hajny, Paul B. Shepson, Kerri A. Pratt, Jose D. Fuentes, Tim Starn, Robert Kaeser, Brian H. Stirm, and William R. Simpson
Atmos. Chem. Phys., 24, 23–40, https://doi.org/10.5194/acp-24-23-2024, https://doi.org/10.5194/acp-24-23-2024, 2024
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Bromine monoxide (BrO) strongly affects atmospheric chemistry in the springtime Arctic, yet there are still many uncertainties around its sources and recycling, particularly in the context of a rapidly changing Arctic. In this study, we observed BrO as a function of altitude above the Alaskan Arctic. We found that BrO was often most concentrated near the ground, confirming the ability of snow to produce and recycle reactive bromine, and identified four common vertical distributions of BrO.
Alina Fiehn, Maximilian Eckl, Julian Kostinek, Michał Gałkowski, Christoph Gerbig, Michael Rothe, Thomas Röckmann, Malika Menoud, Hossein Maazallahi, Martina Schmidt, Piotr Korbeń, Jarosław Neçki, Mila Stanisavljević, Justyna Swolkień, Andreas Fix, and Anke Roiger
Atmos. Chem. Phys., 23, 15749–15765, https://doi.org/10.5194/acp-23-15749-2023, https://doi.org/10.5194/acp-23-15749-2023, 2023
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During the CoMet mission in the Upper Silesian Coal Basin (USCB) ground-based and airborne air samples were taken and analyzed for the isotopic composition of CH4 to derive the mean signature of the USCB and source signatures of individual coal mines. Using δ2H signatures, the biogenic emissions from the USCB account for 15 %–50 % of total emissions, which is underestimated in common emission inventories. This demonstrates the importance of δ2H-CH4 observations for methane source apportionment.
Yifei Song, Chaoyang Xue, Yuanyuan Zhang, Pengfei Liu, Fengxia Bao, Xuran Li, and Yujing Mu
Atmos. Chem. Phys., 23, 15733–15747, https://doi.org/10.5194/acp-23-15733-2023, https://doi.org/10.5194/acp-23-15733-2023, 2023
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We present measurements of HONO flux and related parameters over an agricultural field during a whole growing season of summer maize. This dataset allows studies on the characteristics and influencing factors of soil HONO emissions, determination of HONO emission factors, estimation of total HONO emissions at a national scale, and the discussion on future environmental policies in terms of mitigating regional air pollution.
Can Ye, Keding Lu, Xuefei Ma, Wanyi Qiu, Shule Li, Xinping Yang, Chaoyang Xue, Tianyu Zhai, Yuhan Liu, Xuan Li, Yang Li, Haichao Wang, Zhaofeng Tan, Xiaorui Chen, Huabin Dong, Limin Zeng, Min Hu, and Yuanhang Zhang
Atmos. Chem. Phys., 23, 15455–15472, https://doi.org/10.5194/acp-23-15455-2023, https://doi.org/10.5194/acp-23-15455-2023, 2023
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In this study, combining comprehensive field measurements and a box model, we found NO2 conversion on the ground surface was the most important source for HONO production among the proposed heterogeneous and gas-phase HONO sources. In addition, HONO was found to evidently enhance O3 production and aggravate O3 pollution in summer in China. Our study improved our understanding of the relative importance of different HONO sources and the crucial role of HONO in O3 formation in polluted areas.
Yann Cohen, Didier Hauglustaine, Bastien Sauvage, Susanne Rohs, Patrick Konjari, Ulrich Bundke, Andreas Petzold, Valérie Thouret, Andreas Zahn, and Helmut Ziereis
Atmos. Chem. Phys., 23, 14973–15009, https://doi.org/10.5194/acp-23-14973-2023, https://doi.org/10.5194/acp-23-14973-2023, 2023
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The upper troposphere–lower stratosphere (UTLS) is a key region regarding the lower atmospheric composition. This study consists of a comprehensive evaluation of an up-to-date chemistry–climate model in this layer, using regular in situ measurements based on passenger aircraft. For this purpose, a specific software (Interpol-IAGOS) has been updated and made publicly available. The model reproduces the carbon monoxide peaks due to biomass burning over the continental tropics particularly well.
Yifan Jiang, Men Xia, Zhe Wang, Penggang Zheng, Yi Chen, and Tao Wang
Atmos. Chem. Phys., 23, 14813–14828, https://doi.org/10.5194/acp-23-14813-2023, https://doi.org/10.5194/acp-23-14813-2023, 2023
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This study provides the first estimate of high rates of formic acid (HCOOH) production from the photochemical aging of real ambient particles and demonstrates the potential importance of this pathway in the formation of HCOOH under ambient conditions. Incorporating this pathway significantly improved the performance of a widely used chemical model. Our solution irradiation experiments demonstrated the importance of nitrate photolysis in HCOOH production via the production of oxidants.
Xuelian Zhong, Hengqing Shen, Min Zhao, Ji Zhang, Yue Sun, Yuhong Liu, Yingnan Zhang, Ye Shan, Hongyong Li, Jiangshan Mu, Yu Yang, Yanqiu Nie, Jinghao Tang, Can Dong, Xinfeng Wang, Yujiao Zhu, Mingzhi Guo, Wenxing Wang, and Likun Xue
Atmos. Chem. Phys., 23, 14761–14778, https://doi.org/10.5194/acp-23-14761-2023, https://doi.org/10.5194/acp-23-14761-2023, 2023
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Nitrous acid (HONO) is vital for atmospheric oxidation. In research at Mount Lao, China, models revealed a significant unidentified marine HONO source. Overlooking this could skew our understanding of air quality and climate change. This finding emphasizes HONO’s importance in the coastal atmosphere, uncovering previously unnoticed interactions.
Steven Job Thomas, Toni Tykkä, Heidi Hellén, Federico Bianchi, and Arnaud P. Praplan
Atmos. Chem. Phys., 23, 14627–14642, https://doi.org/10.5194/acp-23-14627-2023, https://doi.org/10.5194/acp-23-14627-2023, 2023
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The study employed total ozone reactivity to demonstrate how emissions of Norway spruce readily react with ozone and could be a major ozone sink, particularly under stress. Additionally, this approach provided insight into the limitations of current analytical techniques that measure the compounds present or emitted into the atmosphere. The study shows how the technique used was not enough to measure all compounds emitted, and this could potentially underestimate various atmospheric processes.
Jinsol Kim, John B. Miller, Charles E. Miller, Scott J. Lehman, Sylvia E. Michel, Vineet Yadav, Nick E. Rollins, and William M. Berelson
Atmos. Chem. Phys., 23, 14425–14436, https://doi.org/10.5194/acp-23-14425-2023, https://doi.org/10.5194/acp-23-14425-2023, 2023
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In this study, we present the partitioning of CO2 signals from biogenic, petroleum and natural gas sources by combining CO, 13CO2 and 14CO2 measurements. Using measurements from flask air samples at three sites in the greater Los Angeles region, we find larger and positive contributions of biogenic signals in winter and smaller and negative contributions in summer. The largest contribution of natural gas combustion generally occurs in summer.
Robert Woodward-Massey, Roberto Sommariva, Lisa K. Whalley, Danny R. Cryer, Trevor Ingham, William J. Bloss, Stephen M. Ball, Sam Cox, James D. Lee, Chris P. Reed, Leigh R. Crilley, Louisa J. Kramer, Brian J. Bandy, Grant L. Forster, Claire E. Reeves, Paul S. Monks, and Dwayne E. Heard
Atmos. Chem. Phys., 23, 14393–14424, https://doi.org/10.5194/acp-23-14393-2023, https://doi.org/10.5194/acp-23-14393-2023, 2023
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Measurements of OH, HO2 and RO2 radicals and also OH reactivity were made at a UK coastal site and compared to calculations from a constrained box model utilising the Master Chemical Mechanism. The model agreement displayed a strong dependence on the NO concentration. An experimental budget analysis for OH, HO2, RO2 and total ROx demonstrated significant imbalances between HO2 and RO2 production rates. Ozone production rates were calculated from measured radicals and compared to modelled values.
Leonard Kirago, Örjan Gustafsson, Samuel Mwaniki Gaita, Sophie L. Haslett, Michael J. Gatari, Maria Elena Popa, Thomas Röckmann, Christoph Zellweger, Martin Steinbacher, Jörg Klausen, Christian Félix, David Njiru, and August Andersson
Atmos. Chem. Phys., 23, 14349–14357, https://doi.org/10.5194/acp-23-14349-2023, https://doi.org/10.5194/acp-23-14349-2023, 2023
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This study provides ground-observational evidence that supports earlier suggestions that savanna fires are the main emitters and modulators of carbon monoxide gas in Africa. Using isotope-based techniques, the study has shown that about two-thirds of this gas is emitted from savanna fires, while for urban areas, in this case Nairobi, primary sources approach 100 %. The latter has implications for air quality policy, suggesting primary emissions such as traffic should be targeted.
Cited articles
Baek, S. Y., Choi, S. D., and Chang, Y. S.: Three-Year Atmospheric Monitoring of Organochlorine Pesticides and Polychlorinated Biphenyls in Polar Regions and the South Pacific, Environ. Sci. Technol., 45, 4475–4482, https://doi.org/10.1021/Es1042996, 2011.
Bailey, R. E.: Global hexachlorobenzene emissions, Chemosphere, 43, 167–182, https://doi.org/10.1016/S0045-6535(00)00186-7, 2001.
Bidleman, T. F., Jantunen, L. M., Kurt-Karakus, P. B., and Wong, F.: Chiral persistent organic pollutants as tracers of atmospheric sources and fate: review and prospects for investigating climate change influences, Atmos. Pollut. Res., 3, 371–382, https://doi.org/10.5094/Apr.2012.043, 2012.
Brubaker, W. W. and Hites, R. A.: OH Reaction Kinetics of Gas-Phase α- and γ-Hexachlorocyclohexane and Hexachlorobenzene, Environ. Sci. Technol., 32, 766–769, 1998.
Carrera, G., Fernández, P., Grimalt, J. O., Ventura, M., Camarero, L., Catalan, J., Nickus, U., Thies, H., and Psenner, R.: Atmospherc deposition of organochlorine compounds to remote high mountain lakes of Europe, Environ. Sci. Technol., 36, 2581–2588, 2002.
Cetin, B., Ozer, S., Sofuoglu, A., and Odabasi, M.: Determination of Henry's law constants of organochlorine pesticides in deionized and saline water as a function of temperature, Atmos. Environ., 40, 4538–4546, https://doi.org/10.1016/j.atmosenv.2006.04.009, 2006.
Chakraborty, P., Zhang, G., Li, J., Sivakumar, A., and Jones, K. C.: Occurrence and sources of selected organochlorine pesticides in the soil of seven major Indian cities: Assessment of air–soil exchange, Environ. Pollut., 204, 74–80, 2015.
Dalla Valle, M., Jurado, E., Dachs, J., Sweetman, A. J., and Jones, K. C.: The maximum reservoir capacity of soils for persistent organic pollutants: implications for global cycling, Environ. Pollut., 134, 153–164, https://doi.org/10.1016/j.envpol.2004.07.011, 2005.
Daly, G. L., Lei, Y. D., Teixeira, C., Muir, D. C. G., and Wania, F.: Pesticides in western Canadian mountain air and soil, Environ. Sci. Technol., 41, 6020–6025, https://doi.org/10.1021/Es070848o, 2007.
Ding, X., Wang, X. M., Xie, Z. Q., Xiang, C. H., Mai, B. X., Sun, L. G., Zheng, M., Sheng, G. Y., Fu, J. M., and Poschl, U.: Atmospheric polycyclic aromatic hydrocarbons observed over the North Pacific Ocean and the Arctic area: Spatial distribution and source identification, Atmos. Environ., 41, 2061–2072, https://doi.org/10.1016/j.atmonsenv.2006.11.002, 2007.
Fernandez, P., Grimalt, J. O., and Vilanova, R. M.: Atmospheric gas-particle partitioning of polycyclic aromatic hydrocarbons in high mountain regions of Europe, Environ. Sci. Technol., 36, 1162–1168, https://doi.org/10.1021/Es010190t, 2002.
Franz, T. P. and Eisenreich, S. J.: Snow scavenging of polychlorinated biphenyls and polycyclic aromatic hydrocarbons in Minnesota, Environ. Sci. Technol., 32, 1771–1778, https://doi.org/10.1021/Es970601z, 1998.
Froescheis, O., Looser, R., Cailliet, G. M., Jarman, W. M., and Ballschmiter, K.: The deep-sea as a final global sink of semivolatile persistent organic pollutants? Part I: PCBs in surface and deep-sea dwelling fish of the North and South Atlantic and the Monterey Bay Canyon (California), Chemosphere, 40, 651–660, https://doi.org/10.1016/S0045-6535(99)00461-0, 2000.
Geisz, H. N., Dickhut, R. M., Cochran, M. A., Fraser, W. R., and Ducklow, H. W.: Melting glaciers: A probable source of DDT to the Antarctic marine ecosystem, Environ. Sci. Technol., 42, 3958–3962, https://doi.org/10.1021/es702919n, 2008.
Gioia, R., Lohmann, R., Dachs, J., Temme, C., Lakaschus, S., Schulz-Bull, D., Hand, I., and Jones, K. C.: Polychlorinated biphenyls in air and water of the North Atlantic and Arctic Ocean, J. Geophys. Res., 113, D19302, https://doi.org/10.1029/2007jd009750, 2008.
Gioia, R., Li, J., Schuster, J., Zhang, Y. L., Zhang, G., Li, X. D., Spiro, B., Bhatia, R. S., Dachs, J., and Jones, K. C.: Factors Affecting the Occurrence and Transport of Atmospheric Organochlorines in the China Sea and the Northern Indian and South East Atlantic Oceans, Environ. Sci. Technol., 46, 10012–10021, https://doi.org/10.1021/Es302037t, 2012.
Gong, P., Wang, X. P., and Yao, T. D.: Ambient distribution of particulate- and gas-phase n-alkanes and polycyclic aromatic hydrocarbons in the Tibetan Plateau, Environ. Earth Sci., 64, 1703–1711, https://doi.org/10.1007/s12665-011-0974-3, 2011.
Gonzalez-Gaya, B., Zuniga-Rival, J., Ojeda, M. J., Jimenez, B., and Dachs, J.: Field Measurements of the Atmospheric Dry Deposition Fluxes and Velocities of Polycyclic Aromatic Hydrocarbons to the Global Oceans, Environ. Sci. Technol., 48, 5583–5592, https://doi.org/10.1021/es500846p, 2014.
Gonzalez-Gaya, B., Fernandez-Pinos, M. C., Morales, L., Mejanelle, L., Abad, E., Pina, B., Duarte, C. M., Jimenez, B., and Dachs, J.: High atmosphere-ocean exchange of semivolatile aromatic hydrocarbons, Nat. Geosci., 9, 438–442, https://doi.org/10.1038/NGEO2714, 2016.
Guglielmo, F., Stemmler, I., and Lammel, G.: The impact of organochlorines cycling in the cryosphere on their global distribution and fate-1, Sea ice, Environ. Pollut., 162, 475–481, https://doi.org/10.1016/j.envpol.2011.09.039, 2012.
Guzzella, L., Poma, G., De Paolis, A., Roscioli, C., and Viviano, G.: Organic persistent toxic substances in soils, waters and sediments along an altitudinal gradient at Mt. Sagarmatha, Himalayas, Nepal, Environ. Pollut., 159, 2552–2564, https://doi.org/10.1016/j.envpol.2011.06.015, 2011.
Harner, T., Wiberg, K., and Norstrom, R.: Enantiomer fractions are preferred to enantiomer ratios for describing chiral signatures in environmental analysis, Environ. Sci. Technol., 34, 218–220, 2000.
Hu, T., Cao, J., Lee, S., Ho, K., Li, X., Liu, S., and Chen, J.: Physiochemical characteristics of indoor PM2.5 with combustion of dried yak dung as biofuel in Tibetan Plateau, China, Indoor Built Environ, 191, 172–181, 2015.
Huang, Y. M., Xu, Y., Li, J., Xu, W. H., Zhang, G., Cheng, Z. N., Liu, J. W., Wang, Y., and Tian, C. G.: Organochlorine Pesticides in the Atmosphere and Surface Water from the Equatorial Indian Ocean: Enantiomeric Signatures, Sources, and Fate, Environ. Sci. Technol., 47, 13395–13403, https://doi.org/10.1021/Es403138p, 2013.
Hung, H., Kallenborn, R., Breivik, K., Su, Y. S., Brorstrom-Lunden, E., Olafsdottir, K., Thorlacius, J. M., Leppanen, S., Bossi, R., Skov, H., Mano, S., Patton, G. W., Stern, G., Sverko, E., and Fellin, P.: Atmospheric monitoring of organic pollutants in the Arctic under the Arctic Monitoring and Assessment Programme (AMAP): 1993–2006, Sci. Total Environ., 408, 2854–2873, https://doi.org/10.1016/j.scitotenv.2009.10.044, 2010.
Iwata, H., Tanabe, S., Sakal, N., and Tatsukawa, R.: Distribution of Persistent Organochlorines in the Oceanic Air and Surface Seawater and the Role of Ocean on Their Global Transport and Fate, Environ. Sci. Technol., 27, 1080–1098, 1993.
Jantunen, L. M., Helm, P. A., Kylin, H., and Bidlemant, T. F.: Hexachlorocyclohexanes (HCHs) in the Canadian archipelago, 2. Air-water gas exchange of alpha- and gamma-HCH, Environ. Sci. Technol., 42, 465–470, https://doi.org/10.1021/Es071646v, 2008.
Jantunen, L. M., Wong, F., Gawor, A., Kylin, H., Helm, P. A., Stern, G. A., Strachan, W. M. J., Burniston, D. A., and Bidleman, T. F.: 20 Years of Air-Water Gas Exchange Observations for Pesticides in the Western Arctic Ocean, Environ. Sci. Technol., 49, 13844–13852, https://doi.org/10.1021/acs.est.5b01303, 2015.
Jurado, E., Jaward, F., Lohmann, R., Jones, K. C., Simo, R., and Dachs, J.: Wet deposition of persistent organic pollutants to the global oceans, Environ. Sci. Technol., 39, 2426–2435, https://doi.org/10.1021/Es048599g, 2005.
Kang, J. H., Choi, S. D., Park, H., Baek, S. Y., Hong, S., and Chang, Y. S.: Atmospheric deposition of persistent organic pollutants to the East Rongbuk Glacier in the Himalayas, Sci. Total Environ., 408, 57–63, https://doi.org/10.1016/j.scitotenv.2009.09.015, 2009.
Keyte, I. J., Harrison, R. M., and Lammel, G.: Chemical reactivity and long-range transport potential of polycyclic aromatic hydrocarbons – a review, Chem. Soc. Rev., 42, 9333–9391, https://doi.org/10.1039/c3cs60147a, 2013.
Khairy, M., Muir, D., Teixeira, C., and Lohmann, R.: Spatial Trends, Sources, and Air-Water Exchange of Organochlorine Pesticides in the Great Lakes Basin Using Low Density Polyethylene Passive Samplers, Environ. Sci. Technol., 48, 9315–9324, https://doi.org/10.1021/es501686a, 2014.
Komprda, J., Komprdova, K., Sanka, M., Mozny, M., and Nizzetto, L.: Influence of Climate and Land Use Change on Spatially Resolved Volatilization of Persistent Organic Pollutants (POPs) from Background Soils, Environ. Sci. Technol., 47, 7052–7059, https://doi.org/10.1021/es30437134, 2013.
Kurt-Karakus, P. B., Bidleman, T. F., Staebler, R. M., and Jones, K. C.: Measurement of DDT fluxes from a historically treated agricultural soil in Canada, Environ. Sci. Technol., 40, 4578–4585, https://doi.org/10.1021/Es060216m, 2006.
Law, S. A., Diamond, M. L., Helm, P. A., Jantunen, L. M., and Alaee, M.: Factors affecting the occurrence and enantiomeric degradation of hexachlorocyclohexane isomers in northern and temperate aquatic systems, Environ. Toxicol. Chem., 20, 2690–2698, 2001.
Leys, N. M., Ryngaert, A., Bastiaens, L., Top, E. M., Verstraete, W., and Springael, D.: Culture Independent Detection of Sphingomonas sp. EPA 505 Related Strains in Soils Contaminated with Polycyclic Aromatic Hydrocarbons (PAHs), Microb. Ecol., 49, 443–450, 2005.
Li, C. L., Kang, S. C., Chen, P. F., Zhang, Q. G., and Fang, G. C.: Characterizations of particle-bound trace metals and polycyclic aromatic hydrocarbons (PAHs) within Tibetan tents of south Tibetan Plateau, China, Environ. Sci. Pollut. Res., 19, 1620–1628, https://doi.org/10.1007/s11356-011-0678-y, 2012.
Li, C. L., Bosch, C., Kang, S. C., Andersson, A., Chen, P. F., Zhang, Q. G., Cong, Z. Y., Chen, B., Qin, D. H., and Gustafsson, O.: Sources of black carbon to the Himalayan-Tibetan Plateau glaciers, Nat. Commun., 7, 12574, https://doi.org/10.1038/Ncomms12574, 2016.
Li, J., Zhu, T., Wang, F., Qiu, X. H., and Lin, W. L.: Observation of organochlorine pesticides in the air of the Mt. Everest region, Ecotoxicol. Environ. Saf., 63, 33–41, https://doi.org/10.1016/j.ecoenv.2005.04.001, 2006.
Liu, X. and Chen, B.: Climatic warming in the Tibetan Plateau during recent decades, Int. J. Climatol., 20, 1729–1742, 2000.
Liu, X. B., Yao, T. D., Kang, S. C., Jiao, N. A. Z., Zeng, Y. H., and Liu, Y. Q.: Bacterial Community of the Largest Oligosaline Lake, Namco on the Tibetan Plateau, Geomicrobiol. J., 27, 669–682, https://doi.org/10.1080/01490450903528000, 2010.
Liu, Y. Q., Yao, T. D., Jiao, N. Z., Kang, S. C., Xu, B. Q., Zeng, Y. H., Huang, S. J., and Liu, X. B.: Bacterial diversity in the snow over Tibetan Plateau Glaciers, Extremophiles, 13, 411–423, https://doi.org/10.1007/s00792-009-0227-5, 2009.
Liu, Y. Q., Yao, T. D., Jiao, N. Z., Liu, X. B., Kang, S. C., and Luo, T. W.: Seasonal Dynamics of the Bacterial Community in Lake Namco, the Largest Tibetan Lake, Geomicrobiol. J., 30, 17–28, https://doi.org/10.1080/01490451.2011.638700, 2013.
Lohmann, R., Gioia, R., Jones, K. C., Nizzetto, L., Temme, C., Xie, Z., Schulz-Bull, D., Hand, I., Morgan, E., and Jantunen, L.: Organochlorine Pesticides and PAHs in the Surface Water and Atmosphere of the North Atlantic and Arctic Ocean, Environ. Sci. Technol., 43, 5633–5639, https://doi.org/10.1021/Es901229k, 2009.
Ma, J. M., Hung, H. L., Tian, C., and Kallenborn, R.: Revolatilization of persistent organic pollutants in the Arctic induced by climate change, Nature Climate Change, 1, 255–260, https://doi.org/10.1038/Nclimate1167, 2011.
Ma, Y. G., Lei, Y. D., Xiao, H., Wania, F., and Wang, W. H.: Critical Review and Recommended Values for the Physical-Chemical Property Data of 15 Polycyclic Aromatic Hydrocarbons at 25 °C, J. Chem. Eng. Data., 55, 819–825, https://doi.org/10.1021/Je900477x, 2010.
Ma, Y. X., Xie, Z. Y., Yang, H. Z., Moller, A., Halsall, C., Cai, M. H., Sturm, R., and Ebinghaus, R.: Deposition of polycyclic aromatic hydrocarbons in the North Pacific and the Arctic, J. Geophys. Res., 118, 5822–5829, https://doi.org/10.1002/jgrd.50473, 2013.
Mulder, M. D., Heil, A., Kukucka, P., Klanova, J., Kuta, J., Prokes, R., Sprovieri, F., and Lammel, G.: Air-sea exchange and gas-particle partitioning of polycyclic aromatic hydrocarbons in the Mediterranean, Atmos. Chem. Phys., 14, 8905–8915, https://doi.org/10.5194/acp-14-8905-2014, 2014.
Nizzetto, L., Lohmann, R., Gioia, R., Jahnke, A., Temme, C., Dachs, J., Herckes, P., Di, G. A., and Jones, K. C.: PAHs in air and seawater along a North-South Atlantic transect: trends, processes and possible sources, Environ. Sci. Technol., 42, 1580–1585, 2008.
Noyes, P. D., McElwee, M. K., Miller, H. D., Clark, B. W., Van Tiem, L. A., Walcott, K. C., Erwin, K. N., and Levin, E. D.: The toxicology of climate change: Environmental contaminants in a warming world, Environ. Int., 35, 971–986, https://doi.org/10.1016/j.envint.2009.02.006, 2009.
Ridal, J. J., Bidleman, T. F., Kerman, B. R., Fox, M. E., and Strachan, W. M. J.: Enantiomers of alpha-hexachlorocyclohexane as tracers of air-water gas exchange in Lake Ontario, Environ. Sci. Technol., 31, 1940–1945, https://doi.org/10.1021/Es9607244, 1997.
Ruzickova, P., Klanova, J., Cupr, P., Lammel, G., and Holoubek, I.: An assessment of air-soil exchange of polychlorinated biphenyls and organochlorine pesticides across Central and Southern Europe, Environ. Sci. Technol., 42, 179–185, https://doi.org/10.1021/Es071406f, 2008.
Sheng, J. J., Wang, X. P., Gong, P., Joswiak, D. R., Tian, L. D., Yao, T. D., and Jones, K. C.: Monsoon-driven transport of organochlorine pesticides and polychlorinated biphenyls to the tibetan plateau: three year atmospheric monitoring study, Environ. Sci. Technol., 47, 3199–3208, https://doi.org/10.1021/es305201s, 2013.
Spivakovsky, C. M., Logan, J. A., Montzka, S. A., Balkanski, Y. J., Foreman-Fowler, M., Jones, D. B. A., Horowitz, L. W., Fusco, A. C., Brenninkmeijer, C. A. M., and Prather, M. J.: Three-dimensional climatological distribution of tropospheric OH: Update and evaluation, J. Geophys. Res., 105, 8931–8980, 2000.
Stemmler, I. and Lammel, G.: Cycling of DDT in the global environment 1950–2002: World ocean returns the pollutant, Geophys. Res. Lett., 36, L24602, https://doi.org/10.1029/2009GL041340, 2009.
Su, Y. S., Hung, H., Blanchard, P., Patton, G. W., Kallenborn, R., Konoplev, A., Fellin, P., Li, H., Geen, C., Stern, G., Rosenberg, B., and Barrie, L. A.: Spatial and seasonal variations of hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB) in the Arctic atmosphere, Environ. Sci. Technol., 40, 6601–6607, https://doi.org/10.1021/Es061065q, 2006.
Su, Y. S., Hung, H., Blanchard, P., Patton, G. W., Kallenborn, R., Konoplev, A., Fellin, P., Li, H., Geen, C., Stern, G., Rosenberg, B., and Barrie, L. A.: A circumpolar perspective of atmospheric organochlorine pesticides (OCPs): Results from six Arctic monitoring stations in 2000–2003, Atmos. Environ., 42, 4682–4698, https://doi.org/10.1016/j.atmosenv.2008.01.054, 2008.
Tranvik, L. J., Downing, J. A., Cotner, J. B., Loiselle, S. A., Striegl, R. G., Ballatore, T. J., Dillon, P., Finlay, K., Fortino, K., Knoll, L. B., Kortelainen, P. L., Kutser, T., Larsen, S., Laurion, I., Leech, D. M., McCallister, S. L., McKnight, D. M., Melack, J. M., Overholt, E., Porter, J. A., Prairie, Y., Renwick, W. H., Roland, F., Sherman, B. S., Schindler, D. W., Sobek, S., Tremblay, A., Vanni, M. J., Verschoor, A. M., von Wachenfeldt, E., and Weyhenmeyer, G. A.: Lakes and reservoirs as regulators of carbon cycling and climate, Limnol. Oceanogr., 54, 2298–2314, https://doi.org/10.4319/lo.2009.54.6_part_2.2298, 2009.
Tremolada, P., Villa, S., Bazzarin, P., Bizzotto, E., Comolli, R., and Vighi, M.: POPs in Mountain Soils from the Alps and Andes: Suggestions for a “Precipitation Effect” on Altitudinal Gradients, Water Air Soil Pollut., 188, 93–109, 2008.
Venier, M., Dove, A., Romanak, K., Backus, S., and Hites, R.: Flame Retardants and Legacy Chemicals in Great Lakes' Water, Environ. Sci. Technol., 48, 9563–9572, https://doi.org/10.1021/es501509r, 2014.
Vilanova, R. M., Fernandez, P., Martinez, C., and Grimalt, J. O.: Polycyclic aromatic hydrocarbons in remote mountain lake waters, Water Res., 35, 3916–3926, https://doi.org/10.1016/S0043-1354(01)00113-0, 2001.
Wang, C. F., Wang, X. P., Gong, P., and Yao, T. D.: Polycyclic aromatic hydrocarbons in surface soil across the Tibetan Plateau: Spatial distribution, source and air-soil exchange, Environ. Pollut., 184, 138–144, https://doi.org/10.1016/j.envpol.2013.08.029, 2014.
Wang, J. B., Zhu, L. P., Daut, G., Ju, J. T., Lin, X., Wang, Y., and Zhen, X. L.: Investigation of bathymetry and water quality of Lake Nam Co, the largest lake on the central Tibetan Plateau, China, Limnology, 10, 149–158, https://doi.org/10.1007/s10201-009-0266-8, 2009.
Wang, X. P., Sheng, J. J., Gong, P., Xue, Y. G., Yao, T. D., and Jones, K. C.: Persistent organic pollutants in the Tibetan surface soil: Spatial distribution, air-soil exchange and implications for global cycling, Environ. Pollut., 170, 145–151, https://doi.org/10.1016/j.envpol.2012.06.012, 2012.
Wang, X. P., Gong, P., Sheng, J. J., Joswiak, D. R., and Yao, T. D.: Long-range atmospheric transport of particulate Polycyclic Aromatic Hydrocarbons and the incursion of aerosols to the southeast Tibetan Plateau, Atmos. Environ., 115, 124–131, https://doi.org/10.1016/j.atmosenv.2015.04.050, 2015.
Wang, X. P., Gong, P., Wang, C. F., Ren, J., and Yao, T. D.: A review of current knowledge and future prospects regarding persistent organic pollutants over the Tibetan Plateau, Sci. Total Environ., 573, 139–154, https://doi.org/10.1016/j.scitotenv.2016.08.107, 2016.
Wania, F., Axelman, J., and Broman, D.: A review of processes involved in the exchange of persistent organic pollutants across the air-sea interface, Environ. Pollut., 102, 3–23, https://doi.org/10.1016/S0269-7491(98)00072-4, 1998a.
Wania, F., Haugen, J. E., Lei, Y. D., and Mackay, D.: Temperature dependence of atmospheric concentrations of semivolatile organic compounds, Environ. Sci. Technol., 32, 1013–1021, https://doi.org/10.1021/Es970856c, 1998b.
Wania, F., Hoff, J. T., Jia, C. Q., and Mackay, D.: The effects of snow and ice on the environmental behaviour of hydrophobic organic chemicals, Environ. Pollut., 102, 25–41, https://doi.org/10.1016/S0269-7491(98)00073-6, 1998c.
Wilkinson, A. C., Kimpe, L. E., and Blais, J. M.: Air-water gas exchange of chlorinated pesticides in four lakes spanning a 1,205 meter elevation range in the Canadian Rocky Mountains, Environ. Toxicol. Chem., 24, 61–69, https://doi.org/10.1897/04-071r.1, 2005.
Wong, F., Jantunen, L. M., Pucko, M., Papakyriakou, T., Staebler, R. M., Stern, G. A., and Bidleman, T. F.: Air-Water Exchange of Anthropogenic and Natural Organohalogens on International Polar Year (IPY) Expeditions in the Canadian Arctic, Environ. Sci. Technol., 45, 876–881, https://doi.org/10.1021/Es1018509, 2011.
Wu, Y. H., Zheng, H. X., Zhang, B., Chen, D. M., and Lei, L. P.: Long-Term Changes of Lake Level and Water Budget in the Nam Co Lake Basin, Central Tibetan Plateau, J. Hydrometeorol., 15, 1312–1322, https://doi.org/10.1175/Jhm-D-13-093.1, 2014.
Xiao, H., Kang, S. C., Zhang, Q. G., Han, W. W., Loewen, M., Wong, F., Hung, H., Lei, Y. D., and Wania, F.: Transport of semivolatile organic compounds to the Tibetan Plateau: Monthly resolved air concentrations at Nam Co, J. Geophys. Res., 115, D16310, https://doi.org/10.1029/2010jd013972, 2010.
Xiao, Q. Y., Saikawa, E., Yokelson, R. J., Chen, P. F., Li, C. L., and Kang, S. C.: Indoor air pollution from burning yak dung as a household fuel in Tibet, Atmos. Environ., 102, 406–412, https://doi.org/10.1016/j.atmosenv.2014.11.060, 2015.
Yang, R. Q., Xie, T., An, L., Yang, H., Turner, S., Wu, G., and Jing, C.: Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau, Environ. Pollut., 214, 1–7, 2016.
Yao, T. D., Thompson, L. G., Mosbrugger, V., Zhang, F., Ma, Y., Luo, T., Xu, B. Q., Yang, X., Joswiak, D. R., Wang, W., Joswiak, M. E., Devkota, L. P., Tayal, S., Jilani, R., and Fayziev, R.: Third Pole Environment (TPE), Environ. Dev., 3, 52–64, https://doi.org/10.1016/j.envdev.2012.04.002, 2012.
Zhang, G., Chakraborty, P., Li, J., Sampathkumar, P., Balasubramanian, T., Kathiresan, K., Takahashi, S., Subramanian, A., Tanabe, S., and Jones, K. C.: Passive Atmospheric Sampling of Organochlorine Pesticides, Polychlorinated Biphenyls, and Polybrominated Diphenyl Ethers in Urban, Rural, and Wetland Sites along the Coastal Length of India, Environ. Sci. Technol., 42, 8218–8223, https://doi.org/10.1021/Es8016667, 2008.
Zhang, G. Q., Yao, T. D., Xie, H. J., Zhang, K. X., and Zhu, F. J.: Lakes' state and abundance across the Tibetan Plateau, Chin. Sci. Bull., 59, 3010–3021, https://doi.org/10.1007/s11434-014-0258-x, 2014.
Zhang, W. L., Zhang, G., Qi, S. H., and Peng, P. A.: A preliminary study of organochlorinepesticides in water and sediments from two Tibetan Lakes, Geochimica, 32, 363–367, 2003 (in Chinese with English abstract).
Short summary
Do the water bodies in the Tibetan Plateau (TP) act as a sink or secondary source of organic pollutants (OPs)? To answer this question, atmospheric processes of OPs over a large lake on the TP were quantified. We found that the lake was a net sink of hexachlorocyclohexanes (HCHs) and most polycyclic aromatic hydrocarbons (PAHs), but it turned into a secondary source of phenanthrene, coinciding with the melting of lake ice.
Do the water bodies in the Tibetan Plateau (TP) act as a sink or secondary source of organic...
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