Articles | Volume 19, issue 24
https://doi.org/10.5194/acp-19-15587-2019
© Author(s) 2019. 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-19-15587-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Review article
| 
20 Dec 2019
Review article |
| 20 Dec 2019
| 20 Dec 2019
Atmospheric mercury deposition over the land surfaces and the associated uncertainties in observations and simulations: a critical review
School of the Environment, Nanjing University, 163 Xianlin Avenue,
Nanjing, Jiangsu 210023, China
State Key Laboratory of Pollution Control and Resource Reuse,
Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
Peisheng Zhou
School of the Environment, Nanjing University, 163 Xianlin Avenue,
Nanjing, Jiangsu 210023, China
Shuzhen Cao
School of the Environment, Nanjing University, 163 Xianlin Avenue,
Nanjing, Jiangsu 210023, China
Yu Zhao
School of the Environment, Nanjing University, 163 Xianlin Avenue,
Nanjing, Jiangsu 210023, China
State Key Laboratory of Pollution Control and Resource Reuse,
Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
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Revised manuscript not accepted
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China has pledged reduction of carbon dioxide emissions per unit GDP by 60–65 % relative to 2005 levels, and to peak carbon emissions overall by 2030. Disagreement among available inventories of Chinese emissions makes it difficult for China to track progress toward its goals and evaluate the efficacy of regional control measures. This study uses a unique set of historical atmospheric observations for the key period from 2005–2009 to independently evaluate three different CO2 emissions estimates.
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Yi Tang, Shuxiao Wang, Qingru Wu, Kaiyun Liu, Long Wang, Shu Li, Wei Gao, Lei Zhang, Haotian Zheng, Zhijian Li, and Jiming Hao
Atmos. Chem. Phys., 18, 8279–8291, https://doi.org/10.5194/acp-18-8279-2018, https://doi.org/10.5194/acp-18-8279-2018, 2018
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Yu Zhao, Pan Mao, Yaduan Zhou, Yang Yang, Jie Zhang, Shekou Wang, Yanping Dong, Fangjian Xie, Yiyong Yu, and Wenqing Li
Atmos. Chem. Phys., 17, 7733–7756, https://doi.org/10.5194/acp-17-7733-2017, https://doi.org/10.5194/acp-17-7733-2017, 2017
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Eri Saikawa, Hankyul Kim, Min Zhong, Alexander Avramov, Yu Zhao, Greet Janssens-Maenhout, Jun-ichi Kurokawa, Zbigniew Klimont, Fabian Wagner, Vaishali Naik, Larry W. Horowitz, and Qiang Zhang
Atmos. Chem. Phys., 17, 6393–6421, https://doi.org/10.5194/acp-17-6393-2017, https://doi.org/10.5194/acp-17-6393-2017, 2017
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We analyze differences in existing air pollutant emission estimates to better understand the magnitude of emissions as well as the source regions and sectors of air pollution in China. We find large disagreements among the inventories, and we show that these differences have a significant impact on regional air quality simulations. Better understanding of air pollutant emissions at more disaggregated levels is essential for air pollution mitigation in China.
Yaduan Zhou, Yu Zhao, Pan Mao, Qiang Zhang, Jie Zhang, Liping Qiu, and Yang Yang
Atmos. Chem. Phys., 17, 211–233, https://doi.org/10.5194/acp-17-211-2017, https://doi.org/10.5194/acp-17-211-2017, 2017
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A high-resolution emission inventory was developed for Jiangsu, China, using the bottom-up approach. Through comparisons with other national and regional inventories, the best agreement between available ground observation and air quality simulation was found when the provincial inventory was applied. The result implied the advantage of improved emission inventory at local scale for high-resolution air quality modeling.
Jianlin Hu, Peng Wang, Qi Ying, Hongliang Zhang, Jianjun Chen, Xinlei Ge, Xinghua Li, Jingkun Jiang, Shuxiao Wang, Jie Zhang, Yu Zhao, and Yingyi Zhang
Atmos. Chem. Phys., 17, 77–92, https://doi.org/10.5194/acp-17-77-2017, https://doi.org/10.5194/acp-17-77-2017, 2017
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An annual simulation of secondary organic aerosol (SOA) concentrations in China with updated SOA formation pathways reveals that SOA can be a significant contributor to PM2.5 in major urban areas. Summer SOA is dominated by emissions from biogenic sources, while winter SOA is dominated by anthropogenic emissions such as alkanes and aromatic compounds. Reactive surface uptake of dicarbonyls throughout the year and isoprene epoxides in summer is the most important contributor.
Hui Zhong, Yu Zhao, Marilena Muntean, Lei Zhang, and Jie Zhang
Atmos. Chem. Phys., 16, 15119–15134, https://doi.org/10.5194/acp-16-15119-2016, https://doi.org/10.5194/acp-16-15119-2016, 2016
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A better understanding of the discrepancies in multi-scale emission inventories could provide indications for their limitations and further improvements. We develop a bottom-up inventory of Hg emissions for Jiangsu, China. Compared to the national and global inventories, the largest total Hg emissions and fraction of Hg2+ are estimated. The crucial parameters responsible for the differences include Hg contents in coals/materials, abatement rates of emission control devices, and activity levels.
Min Zhong, Eri Saikawa, Yang Liu, Vaishali Naik, Larry W. Horowitz, Masayuki Takigawa, Yu Zhao, Neng-Huei Lin, and Elizabeth A. Stone
Geosci. Model Dev., 9, 1201–1218, https://doi.org/10.5194/gmd-9-1201-2016, https://doi.org/10.5194/gmd-9-1201-2016, 2016
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Large discrepancies exist among emission inventories (e.g., REAS and EDGAR) at the provincial level in China. We use WRF-Chem to evaluate the impact of the difference in existing emission inventories and find that emissions inputs significantly affect our air pollutant simulation results. Our study highlights the importance of constraining emissions at the provincial level for regional air quality modeling over East Asia.
Y. Zhao, L. P. Qiu, R. Y. Xu, F. J. Xie, Q. Zhang, Y. Y. Yu, C. P. Nielsen, H. X. Qin, H. K. Wang, X. C. Wu, W. Q. Li, and J. Zhang
Atmos. Chem. Phys., 15, 12623–12644, https://doi.org/10.5194/acp-15-12623-2015, https://doi.org/10.5194/acp-15-12623-2015, 2015
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A high-resolution emission inventory of air pollutants and CO2 for Nanjing, a typical city in eastern China, is developed, incorporating the best available local information from on-site surveys. The temporal and spatial distribution of the emissions and the correlation between specific species of the inventory are assessed by comparisons with observations and other inventories at larger spatial scale. The emission inventory provides a basis to consider the quality of instrumental observations.
H. Cui, P. Mao, Y. Zhao, C. P. Nielsen, and J. Zhang
Atmos. Chem. Phys., 15, 8657–8678, https://doi.org/10.5194/acp-15-8657-2015, https://doi.org/10.5194/acp-15-8657-2015, 2015
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We present an emission inventory with quantified uncertainties of organic carbon (OC) and elemental carbon (EC) in China. New emission factors from local measurements lead to lower OC emissions than previous studies. We use ground observations to test the levels, trends, and spatial pattern of the emissions. The improvement over prior inventories is indicated by inter-annual comparison and correlation analysis between emissions and observations. Sources with high primary OC/EC are underestimate.
Y. Zhao, H. Zhong, J. Zhang, and C. P. Nielsen
Atmos. Chem. Phys., 15, 4317–4337, https://doi.org/10.5194/acp-15-4317-2015, https://doi.org/10.5194/acp-15-4317-2015, 2015
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China’s atmospheric Hg emissions of anthropogenic origin have been effectively restrained through the national policy of air pollution control. Expansion of technologies with high energy efficiencies and air pollutant removal rates leads to a much slower growth of Hg emissions than that of energy and economy. However, increased uncertainties of Hg emissions are quantified from 2005 to 2012, attributed to the unclear operation status or small sample size of field tests on those technologies.
Y. Zhao, J. Zhang, and C. P. Nielsen
Atmos. Chem. Phys., 14, 8849–8868, https://doi.org/10.5194/acp-14-8849-2014, https://doi.org/10.5194/acp-14-8849-2014, 2014
Y. Zhao, J. Zhang, and C. P. Nielsen
Atmos. Chem. Phys., 13, 487–508, https://doi.org/10.5194/acp-13-487-2013, https://doi.org/10.5194/acp-13-487-2013, 2013
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Measurement report: Insights into the chemical composition and origin of molecular clusters and potential precursor molecules present in the free troposphere over the southern Indian Ocean: observations from the Maïdo Observatory (2150 m a.s.l., Réunion)
Production of oxygenated volatile organic compounds from the ozonolysis of coastal seawater
Comment on “Transport of substantial stratospheric ozone to the surface by a dying typhoon and shallow convection” by Chen et al. (2022)
Observations of cyanogen bromide (BrCN) in the global troposphere and their relation to polar surface O3 destruction
Individual coal mine methane emissions constrained by eddy covariance measurements: low bias and missing sources
The variations of VOCs based on the policy change of Omicron in polluted winter in traffic-hub city, China
Measurement report: Observations of ground-level ozone concentration gradients perpendicular to the Lake Ontario shoreline
Measurement report: The Palau Atmospheric Observatory and its ozonesonde record – continuous monitoring of tropospheric composition and dynamics in the tropical western Pacific
Quantifying SO2 oxidation pathways to atmospheric sulfate using stable sulfur and oxygen isotopes: laboratory simulation and field observation
Hagninou Elagnon Venance Donnou, Aristide Barthélémy Akpo, Money Ossohou, Claire Delon, Véronique Yoboué, Dungall Laouali, Marie Ouafo-Leumbe, Pieter Gideon Van Zyl, Ousmane Ndiaye, Eric Gardrat, Maria Dias-Alves, and Corinne Galy-Lacaux
Atmos. Chem. Phys., 24, 13151–13182, https://doi.org/10.5194/acp-24-13151-2024, https://doi.org/10.5194/acp-24-13151-2024, 2024
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Ozone is a secondary air pollutant that is detrimental to human and plant health. A better understanding of its chemical evolution is a challenge for Africa, where it is still undersampled. Out of 14 sites examined (1995–2020), high levels of O3 are reported in southern Africa. The dominant chemical processes leading to O3 formation are identified. A decrease in O3 is observed at Katibougou (Mali) and Banizoumbou (Niger), and an increase is found at Zoétélé (Cameroon) and Skukuza (South Africa).
Junwei Song, Georgios I. Gkatzelis, Ralf Tillmann, Nicolas Brüggemann, Thomas Leisner, and Harald Saathoff
Atmos. Chem. Phys., 24, 13199–13217, https://doi.org/10.5194/acp-24-13199-2024, https://doi.org/10.5194/acp-24-13199-2024, 2024
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Biogenic volatile organic compounds (BVOCs) and organic aerosol (OA) particles were measured online in a stressed spruce-dominated forest. OA was mainly attributed to the monoterpene oxidation products. The mixing ratios of BVOCs were higher than the values previously measured in other temperate forests. The results demonstrate that BVOCs are influenced not only by meteorology and biogenic emissions but also by local anthropogenic emissions and subsequent chemical transformation processes.
Sachin Mishra, Vinayak Sinha, Haseeb Hakkim, Arpit Awasthi, Sachin D. Ghude, Vijay Kumar Soni, Narendra Nigam, Baerbel Sinha, and Madhavan N. Rajeevan
Atmos. Chem. Phys., 24, 13129–13150, https://doi.org/10.5194/acp-24-13129-2024, https://doi.org/10.5194/acp-24-13129-2024, 2024
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We quantified 111 gases using mass spectrometry to understand how seasonal and emission changes lead from clean air in the monsoon season to extremely polluted air in the post-monsoon season in Delhi. Averaged total mass concentrations (260 µg m-3) were > 4 times in polluted periods, driven by biomass burning emissions and reduced atmospheric ventilation. Reactive gaseous nitrogen, chlorine, and sulfur compounds hitherto unreported from such a polluted environment were discovered.
Gérard Ancellet, Camille Viatte, Anne Boynard, François Ravetta, Jacques Pelon, Cristelle Cailteau-Fischbach, Pascal Genau, Julie Capo, Axel Roy, and Philippe Nédélec
Atmos. Chem. Phys., 24, 12963–12983, https://doi.org/10.5194/acp-24-12963-2024, https://doi.org/10.5194/acp-24-12963-2024, 2024
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Characterization of ozone pollution in urban areas benefited from a measurement campaign in summer 2022 in the Paris region. The analysis is based on 21 d of lidar and aircraft observations. The main objective is an analysis of the sensitivity of ozone pollution to the micrometeorological processes in the urban atmospheric boundary layer and the transport of regional pollution. The paper also discusses to what extent satellite observations can track observed ozone plumes.
Xiaoyi Zhang, Wanyun Xu, Weili Lin, Gen Zhang, Jinjian Geng, Li Zhou, Huarong Zhao, Sanxue Ren, Guangsheng Zhou, Jianmin Chen, and Xiaobin Xu
Atmos. Chem. Phys., 24, 12323–12340, https://doi.org/10.5194/acp-24-12323-2024, https://doi.org/10.5194/acp-24-12323-2024, 2024
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Ozone (O3) deposition is a key process that removes surface O3, affecting air quality, ecosystems and climate change. We conducted O3 deposition measurement over a wheat canopy using a newly relaxed eddy accumulation flux system. Large variabilities in O3 deposition were detected, mainly determined by crop growth and modulated by various environmental factors. More O3 deposition observations over different surfaces are needed for exploring deposition mechanisms and model optimization.
Honglei Wang, David W. Tarasick, Jane Liu, Herman G. J. Smit, Roeland Van Malderen, Lijuan Shen, Romain Blot, and Tianliang Zhao
Atmos. Chem. Phys., 24, 11927–11942, https://doi.org/10.5194/acp-24-11927-2024, https://doi.org/10.5194/acp-24-11927-2024, 2024
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In this study, we identify 23 suitable pairs of sites from World Ozone and Ultraviolet Radiation Data Centre (WOUDC) and In-service Aircraft for a Global Observing System (IAGOS) datasets (1995 to 2021), compare the average vertical distributions of tropospheric O3 from ozonesonde and aircraft measurements, and analyze the differences based on ozonesonde type and station–airport distance.
Noémie Taquet, Wolfgang Stremme, María Eugenia González del Castillo, Victor Almanza, Alejandro Bezanilla, Olivier Laurent, Carlos Alberti, Frank Hase, Michel Ramonet, Thomas Lauvaux, Ke Che, and Michel Grutter
Atmos. Chem. Phys., 24, 11823–11848, https://doi.org/10.5194/acp-24-11823-2024, https://doi.org/10.5194/acp-24-11823-2024, 2024
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We characterize the variability in CO and CO2 emissions over Mexico City from long-term time-resolved Fourier transform infrared spectroscopy solar absorption and surface measurements from 2013 to 2021. Using the average intraday CO growth rate from total columns, the average CO / CO2 ratio and TROPOMI data, we estimate the interannual variability in the CO and CO2 anthropogenic emissions of Mexico City, highlighting the effect of an unprecedented drop in activity due to the COVID-19 lockdown.
Akima Ringsdorf, Achim Edtbauer, Bruna Holanda, Christopher Poehlker, Marta O. Sá, Alessandro Araújo, Jürgen Kesselmeier, Jos Lelieveld, and Jonathan Williams
Atmos. Chem. Phys., 24, 11883–11910, https://doi.org/10.5194/acp-24-11883-2024, https://doi.org/10.5194/acp-24-11883-2024, 2024
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We show the average height distribution of separately observed aldehydes and ketones over a day and discuss their rainforest-specific sources and sinks as well as their seasonal changes above the Amazon. Ketones have much longer atmospheric lifetimes than aldehydes and thus different implications for atmospheric chemistry. However, they are commonly observed together, which we overcome by measuring with a NO+ chemical ionization mass spectrometer for the first time in the Amazon rainforest.
Theresa Harlass, Rebecca Dischl, Stefan Kaufmann, Raphael Märkl, Daniel Sauer, Monika Scheibe, Paul Stock, Tiziana Bräuer, Andreas Dörnbrack, Anke Roiger, Hans Schlager, Ulrich Schumann, Magdalena Pühl, Tobias Schripp, Tobias Grein, Linda Bondorf, Charles Renard, Maxime Gauthier, Mark Johnson, Darren Luff, Paul Madden, Peter Swann, Denise Ahrens, Reetu Sallinen, and Christiane Voigt
Atmos. Chem. Phys., 24, 11807–11822, https://doi.org/10.5194/acp-24-11807-2024, https://doi.org/10.5194/acp-24-11807-2024, 2024
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Emissions from aircraft have a direct impact on our climate. Here, we present airborne and ground-based measurement data of nitrogen oxides that were collected in the exhaust of an Airbus aircraft. We study the impact of burning fossil and sustainable aviation fuel on nitrogen oxide emissions at different engine settings related to combustor temperature, pressure and fuel flow. Further, we compare observations with engine emission models.
Simone T. Andersen, Max R. McGillen, Chaoyang Xue, Tobias Seubert, Patrick Dewald, Gunther N. T. E. Türk, Jan Schuladen, Cyrielle Denjean, Jean-Claude Etienne, Olivier Garrouste, Marina Jamar, Sergio Harb, Manuela Cirtog, Vincent Michoud, Mathieu Cazaunau, Antonin Bergé, Christopher Cantrell, Sebastien Dusanter, Bénédicte Picquet-Varrault, Alexandre Kukui, Abdelwahid Mellouki, Lucy J. Carpenter, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 24, 11603–11618, https://doi.org/10.5194/acp-24-11603-2024, https://doi.org/10.5194/acp-24-11603-2024, 2024
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Using measurements of various trace gases in a suburban forest near Paris in the summer of 2022, we were able to gain insight into the sources and sinks of NOx (NO+NO2) with a special focus on their nighttime chemical and physical loss processes. NO was observed as a result of nighttime soil emissions when O3 levels were strongly depleted by deposition. NO oxidation products were not observed at night, indicating that soil and/or foliar surfaces are an efficient sink of reactive N.
Lee Tiszenkel, James H. Flynn, and Shan-Hu Lee
Atmos. Chem. Phys., 24, 11351–11363, https://doi.org/10.5194/acp-24-11351-2024, https://doi.org/10.5194/acp-24-11351-2024, 2024
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Ammonia and amines are important ingredients for aerosol formation in urban environments, but the measurements of these compounds are extremely challenging. Our observations show that urban ammonia and amines in Houston are emitted from urban sources, and diurnal variations in their concentrations are likely governed by gas-to-particle conversion and emissions.
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
Atmos. Chem. Phys., 24, 10279–10304, https://doi.org/10.5194/acp-24-10279-2024, https://doi.org/10.5194/acp-24-10279-2024, 2024
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We use 111 volatile organic compounds (VOCs), PM10, and PM2.5 in a positive matrix factorization (PMF) model to resolve 11 pollution sources validated with chemical fingerprints. Crop residue burning and heating account for ~ 50 % of the PM, while traffic and industrial emissions dominate the gas-phase VOC burden and formation potential of secondary organic aerosols (> 60 %). Non-tailpipe emissions from compressed-natural-gas-fuelled commercial vehicles dominate the transport sector's PM burden.
Luke D. Schiferl, Cong Cao, Bronte Dalton, Andrew Hallward-Driemeier, Ricardo Toledo-Crow, and Róisín Commane
Atmos. Chem. Phys., 24, 10129–10142, https://doi.org/10.5194/acp-24-10129-2024, https://doi.org/10.5194/acp-24-10129-2024, 2024
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Carbon monoxide (CO) is an air pollutant and an important indicator of the incomplete combustion of fossil fuels in cities. Using 4 years of winter and spring observations in New York City, we found that both the magnitude and variability of CO from the metropolitan area are greater than expected. Transportation emissions cannot explain the missing and variable CO, which points to energy from buildings as a likely underappreciated source of urban air pollution and greenhouse gas emissions.
Chengzhi Xing, Cheng Liu, Chunxiang Ye, Jingkai Xue, Hongyu Wu, Xiangguang Ji, Jinping Ou, and Qihou Hu
Atmos. Chem. Phys., 24, 10093–10112, https://doi.org/10.5194/acp-24-10093-2024, https://doi.org/10.5194/acp-24-10093-2024, 2024
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We identified the contributions of ozone (O3) and nitrous acid (HONO) to the production rates of hydroxide (OH) in vertical space on the Tibetan Plateau (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 in lower-altitudes areas. This study enriches the understanding of vertical distribution of atmospheric components and explains the strong atmospheric oxidation capacity (AOC) on the TP.
Baoye Hu, Naihua Chen, Rui Li, Mingqiang Huang, Jinsheng Chen, Youwei Hong, Lingling Xu, Xiaolong Fan, Mengren Li, Lei Tong, Qiuping Zheng, and Yuxiang Yang
EGUsphere, https://doi.org/10.5194/egusphere-2024-2631, https://doi.org/10.5194/egusphere-2024-2631, 2024
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Box modeling with the master chemical mechanism (MCM) was used to address the puzzle of summertime PAN formation and its association with aerosol pollution under high ozone conditions. The MCM model proves to be an ideal tool for investigating PAN photochemical formation (IOA=0.75). The model performed better during the clean period than during the haze period. Through the machine learning method of XGBoost, we found that the top three factors leading to simulation bias were NH3, NO3, and PM2.5.
Xinyuan Zhang, Lingling Wang, Nan Wang, Shuangliang Ma, Shenbo Wang, Ruiqin Zhang, Dong Zhang, Mingkai Wang, and Hongyu Zhang
Atmos. Chem. Phys., 24, 9885–9898, https://doi.org/10.5194/acp-24-9885-2024, https://doi.org/10.5194/acp-24-9885-2024, 2024
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This study highlights the importance of the redox reaction of NO2 with SO2 based on actual atmospheric observations. The particle pH in future China is expected to rise steadily. Consequently, this reaction could become a significant source of HONO in China. Therefore, it is crucial to coordinate the control of SO2, NOx, and NH3 emissions to avoid a rapid increase in the particle pH.
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, Yuwen Peng, Jipeng Qi, Minhui Deng, Bowen Zhong, Yibo Huangfu, and Min Shao
Atmos. Chem. Phys., 24, 9805–9826, https://doi.org/10.5194/acp-24-9805-2024, https://doi.org/10.5194/acp-24-9805-2024, 2024
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In-depth understanding of the near-ground vertical variability in photochemical ozone (O3) formation is crucial for mitigating O3 pollution. Utilizing a self-built vertical observation system, a direct net photochemical O3 production rate detection system, and an observation-based model, we diagnosed the vertical distributions and formation mechanism of net photochemical O3 production rates and sensitivity in the Pearl River Delta region, one of the most O3-polluted areas in China.
Eleanor J. Derry, Tyler R. 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
Atmos. Chem. Phys., 24, 9615–9643, https://doi.org/10.5194/acp-24-9615-2024, https://doi.org/10.5194/acp-24-9615-2024, 2024
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Mercury (Hg) is a globally distributed neurotoxic pollutant. Atmospheric deposition is the main source of Hg in 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 US. Oxidized Hg originated upwind in the low to middle free troposphere under clean, dry conditions.
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 Min, Young Ro Lee, Isobel J. Simpson, Kirk Ullmann, and Armin Wisthaler
Atmos. Chem. Phys., 24, 9573–9595, https://doi.org/10.5194/acp-24-9573-2024, https://doi.org/10.5194/acp-24-9573-2024, 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 impacting 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).
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
Atmos. Chem. Phys., 24, 8999–9017, https://doi.org/10.5194/acp-24-8999-2024, https://doi.org/10.5194/acp-24-8999-2024, 2024
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Mandatory use of low-sulfur fuel due to global sulfur limit regulations means large uncertainties in volatile organic compound (VOC) emissions. On-board tests of VOCs from nine cargo ships in China were carried out. Results showed that switching from heavy-fuel oil to diesel increased emission factor VOCs by 48 % on average, enhancing O3 and the secondary organic aerosol formation potential. Thus, implementing a global ultra-low-sulfur oil policy needs to be optimized in the near future.
Patrick Dewald, Tobias Seubert, Simone T. Andersen, Gunther N. T. E. Türk, Jan Schuladen, Max R. McGillen, Cyrielle Denjean, Jean-Claude Etienne, Olivier Garrouste, Marina Jamar, Sergio Harb, Manuela Cirtog, Vincent Michoud, Mathieu Cazaunau, Antonin Bergé, Christopher Cantrell, Sebastien Dusanter, Bénédicte Picquet-Varrault, Alexandre Kukui, Chaoyang Xue, Abdelwahid Mellouki, Jos Lelieveld, and John N. Crowley
Atmos. Chem. Phys., 24, 8983–8997, https://doi.org/10.5194/acp-24-8983-2024, https://doi.org/10.5194/acp-24-8983-2024, 2024
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In the 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 the 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.
Jian Wang, Lei Xue, Qianyao Ma, Feng Xu, Gaobin Xu, Shibo Yan, Jiawei Zhang, Jianlong Li, Honghai Zhang, Guiling Zhang, and Zhaohui Chen
Atmos. Chem. Phys., 24, 8721–8736, https://doi.org/10.5194/acp-24-8721-2024, https://doi.org/10.5194/acp-24-8721-2024, 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 offers valuable insights into the interaction between land and sea in shaping offshore atmospheric NMHCs.
Yusheng Zhang, Feixue Zheng, Zemin Feng, Chaofan Lian, Weigang Wang, Xiaolong Fan, Wei Ma, Zhuohui Lin, Chang Li, Gen Zhang, Chao Yan, Ying Zhang, Veli-Matti Kerminen, Federico Bianch, Tuukka Petäjä, Juha Kangasluoma, Markku Kulmala, and Yongchun Liu
Atmos. Chem. Phys., 24, 8569–8587, https://doi.org/10.5194/acp-24-8569-2024, https://doi.org/10.5194/acp-24-8569-2024, 2024
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The nitrous acid (HONO) budget was validated during a COVID-19 lockdown event. The main conclusions are (1) HONO concentrations showed a significant decrease from 0.97 to 0.53 ppb during lockdown; (2) vehicle emissions accounted for 53 % of nighttime sources, with the heterogeneous conversion of NO2 on ground surfaces more important than aerosol; and (3) the dominant daytime source shifted from the homogenous reaction between NO and OH (51 %) to nitrate photolysis (53 %) during lockdown.
Dong Zhang, Xiao Li, Minghao Yuan, Yifei Xu, Qixiang Xu, Fangcheng Su, Shenbo Wang, and Ruiqin Zhang
Atmos. Chem. Phys., 24, 8549–8567, https://doi.org/10.5194/acp-24-8549-2024, https://doi.org/10.5194/acp-24-8549-2024, 2024
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The increasing concentration of O3 precursors and unfavorable meteorological conditions are key factors in the formation of O3 pollution in Zhengzhou. Vehicular exhausts (28 %), solvent usage (27 %), and industrial production (22 %) are identified as the main sources of NMVOCs. Moreover, O3 formation in Zhengzhou is found to be in an anthropogenic volatile organic compound (AVOC)-limited regime. Thus, to reduce O3 formation, a minimum AVOCs / NOx reduction ratio ≥ 3 : 1 is recommended.
Yuening Li, Faqiang Zhan, Chubashini Shunthirasingham, Ying Duan Lei, Jenny Oh, Amina Ben Chaaben, Zhe Lu, Kelsey Lee, Frank A. P. C. Gobas, Hayley Hung, and Frank Wania
EGUsphere, https://doi.org/10.5194/egusphere-2024-1883, https://doi.org/10.5194/egusphere-2024-1883, 2024
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Organophosphate esters are important man-made trace contaminants. Measuring them in the atmospheric gas phase, particles, precipitation and surface water from Canada, we explore seasonal concentration variability, gas/particle partitioning, precipitation scavenging, and air-water equilibrium. Whereas higher concentrations in summer and efficient precipitation scavenging conform with expectations, the lack of a relationship between compound volatility and gas-particle partitioning is puzzling.
Xiansheng Liu, Xun Zhang, Marvin Dufresne, Tao Wang, Lijie Wu, Rosa Lara, Roger Seco , Marta Monge, Ana Maria Yáñez-Serrano, Marie Gohy, Paul Petit, Audrey Chevalier, Marie-Pierre Vagnot, Yann Fortier, Alexia Baudic, Véronique Ghersi, Grégory Gille, Ludovic Lanzi, Valérie Gros, Leïla Simon, Heidi Hellen, Stefan Reimann, Zoé Le Bras, Michelle Jessy Müller, David Beddows, Siqi Hou, Zongbo Shi, Roy M. Harrison, William Bloss, James Dernie, Stéphane Sauvage, Philip K. Hopke, Xiaoli Duan, Taicheng An, Alastair Lewis, Jim Hopkins, Eleni Liakakou, Nikolaos Mihalopoulos, Xiaohu Zhang, Andrés Alastuey, Xavier Querol, and Thérèse Salameh
EGUsphere, https://doi.org/10.5194/egusphere-2024-2309, https://doi.org/10.5194/egusphere-2024-2309, 2024
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This study examines BTEX (benzene, toluene, ethylbenzene, xylenes) pollution in urban areas across 7 European countries. Analyzing data from 22 monitoring sites, we found traffic and industrial activities significantly impact BTEX levels, with peaks during rush hours. Despite improvements, the risk from BTEX exposure remains moderate, especially in high-traffic and industrial zones. It highlights the need for targeted air quality management to protect public health and improve urban air quality.
Fanhao Meng, Baobin Han, Min Qin, Wu Fang, Ke Tang, Dou Shao, Zhitang Liao, Jun Duan, Yan Feng, Yong Huang, Ting Ni, and Pinhua Xie
EGUsphere, https://doi.org/10.5194/egusphere-2024-2127, https://doi.org/10.5194/egusphere-2024-2127, 2024
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Comprehensive observations of HONO and NOx fluxes were first performed over paddy fields in the Huaihe River Basin. The consecutive peaks in HONO flux and NO flux demonstrated a potentially enhanced release of HONO and NO due to soil tillage, whereas higher WFPS (~80 %) inhibited microbial processes following irrigation. Notably, the biological processes and light-driven NO2 reactions on the surface could both be sources of HONO and influence the local HONO budget during rotary tillage.
Delaney B. Kilgour, Christopher M. Jernigan, Olga Garmash, Sneha Aggarwal, Claudia Mohr, Matt E. Salter, Joel A. Thornton, Jian Wang, Paul Zieger, and Timothy H. Bertram
EGUsphere, https://doi.org/10.5194/egusphere-2024-1975, https://doi.org/10.5194/egusphere-2024-1975, 2024
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We report simultaneous measurements of dimethyl sulfide (DMS) and hydroperoxymethyl thioformate (HPMTF) in the Eastern North Atlantic. We use an observationally constrained box model to show cloud loss is the dominant sink of HPMTF in this region over six weeks, resulting in large reductions in DMS-derived products that contribute to aerosol formation and growth. Our findings indicate that fast cloud processing of HPMTF must be included in global models to accurately capture the sulfur cycle.
Jakob Boyd Pernov, Jens Liengaard Hjorth, Lise Lotte Sørensen, and Henrik Skov
EGUsphere, https://doi.org/10.5194/egusphere-2024-1676, https://doi.org/10.5194/egusphere-2024-1676, 2024
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Arctic ozone depletion events (ODEs) occurs every spring and have vast implications for the oxidizing capacity, radiative balance, and mercury oxidation. In this study, we analyze ozone, ODEs, and their connection to meteorological and air mass history variables through statistical analyses, back-trajectories, and machine learning (ML) at Villum Research Station. ODEs are favorable under sunny, calm conditions with air masses arriving from northerly wind directions with sea ice contact.
Arianna Peron, Martin Graus, Marcus Striednig, Christian Lamprecht, Georg Wohlfahrt, and Thomas Karl
Atmos. Chem. Phys., 24, 7063–7083, https://doi.org/10.5194/acp-24-7063-2024, https://doi.org/10.5194/acp-24-7063-2024, 2024
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The anthropogenic fraction of non-methane volatile organic compound (NMVOC) emissions associated with biogenic sources (e.g., terpenes) is investigated based on eddy covariance observations. The anthropogenic fraction of terpene emissions is strongly dependent on season. When analyzing volatile chemical product (VCP) emissions in urban environments, we caution that observations from short-term campaigns might over-/underestimate their significance depending on local and seasonal circumstances.
Sihang Wang, Bin Yuan, Xianjun He, Ru Cui, Xin Song, Yubin Chen, Caihong Wu, Chaomin Wang, Yibo Huangfu, Xiao-Bing Li, Boguang Wang, and Min Shao
Atmos. Chem. Phys., 24, 7101–7121, https://doi.org/10.5194/acp-24-7101-2024, https://doi.org/10.5194/acp-24-7101-2024, 2024
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Emissions of reactive organic gases from industrial volatile chemical product sources are measured. There are large differences among these industrial sources. We show that oxygenated species account for significant contributions to reactive organic gas emissions, especially for industrial sources utilizing water-borne chemicals.
Qing Yang, Xiao-Bing Li, Bin Yuan, Xiaoxiao Zhang, Yibo Huangfu, Lei Yang, Xianjun He, Jipeng Qi, and Min Shao
Atmos. Chem. Phys., 24, 6865–6882, https://doi.org/10.5194/acp-24-6865-2024, https://doi.org/10.5194/acp-24-6865-2024, 2024
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Online vertical gradient measurements of formic and isocyanic acids were made based on a 320 m tower in a megacity. Vertical variations and sources of the two acids were analyzed in this study. We find that formic and isocyanic acids exhibited positive vertical gradients and were mainly contributed by photochemical formations. The formation of formic and isocyanic acids was also significantly enhanced in urban regions aloft.
Junwei Song, Harald Saathoff, Feng Jiang, Linyu Gao, Hengheng Zhang, and Thomas Leisner
Atmos. Chem. Phys., 24, 6699–6717, https://doi.org/10.5194/acp-24-6699-2024, https://doi.org/10.5194/acp-24-6699-2024, 2024
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This study presents concurrent online measurements of organic gas and particles (VOCs and OA) at a forested site in summer. Both VOCs and OA were largely contributed by oxygenated organic compounds. Semi-volatile oxygenated OA and organic nitrate formed from monoterpenes and sesquiterpenes contributed significantly to nighttime particle growth. The results help us to understand the causes of nighttime particle growth regularly observed in summer in central European rural forested environments.
Xin Yang, Kimberly Strong, Alison S. Criscitiello, Marta Santos-Garcia, Kristof Bognar, Xiaoyi Zhao, Pierre Fogal, Kaley A. Walker, Sara M. Morris, and Peter Effertz
Atmos. Chem. Phys., 24, 5863–5886, https://doi.org/10.5194/acp-24-5863-2024, https://doi.org/10.5194/acp-24-5863-2024, 2024
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This study uses snow samples collected from a Canadian high Arctic site, Eureka, to demonstrate that surface snow in early spring is a net sink of atmospheric bromine and nitrogen. Surface snow bromide and nitrate are significantly correlated, indicating the oxidation of reactive nitrogen is accelerated by reactive bromine. In addition, we show evidence that snow photochemical release of reactive bromine is very weak, and its emission flux is much smaller than the deposition flux of bromide.
Zhaojin An, Rujing Yin, Xinyan Zhao, Xiaoxiao Li, Yi Yuan, Junchen Guo, Yuyang Li, Xue Li, Dandan Li, Yaowei Li, Dongbin Wang, Chao Yan, Kebin He, Douglas R. Worsnop, Frank N. Keutsch, and Jingkun Jiang
EGUsphere, https://doi.org/10.5194/egusphere-2024-1325, https://doi.org/10.5194/egusphere-2024-1325, 2024
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Online Vocus-PTR measurements show the compositions and seasonal variations of organic vapors in urban Beijing. With enhanced sensitivity and mass resolution, various sub-ppt level species and organics with multiple oxygens (≥3) were discovered. The fast photooxidation process in summer leads to an increase in both concentration and proportion of organics with multiple oxygens. While in other seasons, the variations of them could be influenced by primary emissions.
Rebecca M. Garland, Katye E. Altieri, Laura Dawidowski, Laura Gallardo, Aderiana Mbandi, Nestor Y. Rojas, and N'datchoh E. Touré
Atmos. Chem. Phys., 24, 5757–5764, https://doi.org/10.5194/acp-24-5757-2024, https://doi.org/10.5194/acp-24-5757-2024, 2024
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This opinion piece focuses on two geographical areas in the Global South where the authors are based that are underrepresented in atmospheric science. This opinion provides context on common challenges and constraints, with suggestions on how the community can address these. The focus is on the strengths of atmospheric science research in these regions. It is these strengths, we believe, that highlight the critical role of Global South researchers in the future of atmospheric science research.
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.
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.
Shigeyuki Ishidoya, Satoshi Sugawara, and Atsushi Okazaki
EGUsphere, https://doi.org/10.5194/egusphere-2024-654, https://doi.org/10.5194/egusphere-2024-654, 2024
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Diurnal, seasonal, and interannual variations of the present-day stable isotopic ratio of atmospheric O2, in other words slight variations in the Dole-Morita effect, have been detected firstly. A box model that incorporated biological and water processes associated with the Dole-Morita effect reproduced the general characteristics of the observational results. Based on the findings, we proposed some applications to evaluate oxygen, carbon, and water cycles.
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.
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.
Bowen Zhang, Dong Zhang, Zhe Dong, Xinshuai Song, Ruiqin Zhang, and Xiao Li
EGUsphere, https://doi.org/10.5194/egusphere-2024-575, https://doi.org/10.5194/egusphere-2024-575, 2024
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Continuous online VOCs monitoring was carried out at an urban site in a traffic-hub city for two months during the Omicron-infected stage. The characteristics and variations of VOCs in different periods were studied, and their impact on the formation of SOA were evaluated. The work in this manuscript evaluated the influence of the policy variation on VOCs pollution, which will provide some basis for VOCs pollution research and control of pollution sources.
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.
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.
Cited articles
Aas, W. (Ed.): Data quality 2004, quality assurance, and field comparisons,
C587 EMEP/CCC-Report 4/2006, NILU, Kjeller, Norway, 2006.
Agnan, Y., Le Dantec, T., Moore, C. W., Edwards, G. C., and Obrist, D.: New
constraints on terrestrial surface atmosphere fluxes of gaseous elemental
mercury using a global database, Environ. Sci. Technol., 50, 507–524,
https://doi.org/10.1021/acs.est.5b04013, 2016.
Ahn, M. C., Yi, S. M., Holsen, T. M., and Han, Y. J.: Mercury wet deposition
in rural Korea: concentrations and fluxes, J. Environ. Monitor., 13,
2748–2754, https://doi.org/10.1039/c1em10014a, 2011.
Åkerblom, S., Meili, M., and Bishop, K.: Organic matter in rain: an
overlooked influence on mercury deposition, Environ. Sci. Tech. Let., 2,
128–132, https://doi.org/10.1021/acs.estlett.5b00009, 2015.
Bash, J. O.: Description and initial simulation of a dynamic bidirectional
air-surface exchange model for mercury in Community Multiscale Air Quality
(CMAQ) model, J. Geophys. Res., 115, D06305, https://doi.org/10.1029/2009jd012834, 2010.
Baya, A. P. and Van Heyst, B.: Assessing the trends and effects of environmental parameters on the behaviour of mercury in the lower atmosphere over cropped land over four seasons, Atmos. Chem. Phys., 10, 8617–8628, https://doi.org/10.5194/acp-10-8617-2010, 2010.
Benoit, J. M., Cato, D. A., Denison, K. C., and Moreira, A. E.: Seasonal
mercury dynamics in a New England vernal pool, Wetlands, 33, 887–894,
https://doi.org/10.1007/s13157-013-0447-4, 2013.
Bieser, J., De Simone, F., Gencarelli, C., Geyer, B., Hedgecock, I.,
Matthias, V., Travnikov, O., and Weigelt, A.: A diagnostic evaluation of
modeled mercury wet depositions in Europe using atmospheric speciated
high-resolution observations, Environ. Sci. Pollut. R., 21, 9995–10012,
https://doi.org/10.1007/s11356-014-2863-2, 2014.
Blackwell, B. D. and Driscoll, C. T.: Using foliar and forest floor mercury
concentrations to assess spatial patterns of mercury deposition, Environ.
Pollut., 202, 126–134, https://doi.org/10.1016/j.envpol.2015.02.036, 2015a.
Blackwell, B. D. and Driscoll, C. T.: Deposition of mercury in forests
along a montane elevation gradient, Environ. Sci. Technol., 49, 5363–5370,
https://doi.org/10.1021/es505928w, 2015b.
Brunke, E.-G., Walters, C., Mkololo, T., Martin, L., Labuschagne, C.,
Silwana, B., Slemr, F., Weigelt, A., Ebinghaus, R., and Somerset, V.:
Mercury in the atmosphere and in rainwater at Cape Point, South Africa,
Atmos. Environ., 125, 24–32, https://doi.org/10.1016/j.atmosenv.2015.10.059, 2016.
Buch, A. C., Correia, M. E., Teixeira, D. C., and Silva-Filho, E. V.:
Characterization of soil fauna under the influence of mercury atmospheric
deposition in Atlantic Forest, Rio de Janeiro, Brazil, J. Environ. Sci., 32,
217–227, https://doi.org/10.1016/j.jes.2015.01.009, 2015.
Bullock, O. R., Atkinson, D., Braverman, T., Civerolo, K., Dastoor, A.,
Davignon, D., Ku, J. Y., Lohman, K., Myers, T. C., Park, R. J., Seigneur,
C., Selin, N. E., Sistla, G., and Vijayaraghavan, K.: The North American
Mercury Model Intercomparison Study (NAMMIS): Study description and
modelto-model comparisons, J. Geophys. Res.-Atmos., 113, D17310,
https://doi.org/10.1029/2008jd009803, 2008.
Bullock, O. R., Atkinson, D., Braverman, T., Civerolo, K., Dastoor, A.,
Davignon, D., Ku, J.-Y., Lohman, K., Myers, T. C., Park, R. J., Seigneur,
C., Selin, N. E, Sistla, G., and Vijayaraghavan, K.: An analysis of
simulated wet deposition of mercury from the North American Mercury Model
Intercomparison Study, J. Geophys. Res.-Atmos., 114, D08301,
https://doi.org/10.1029/2008jd011224, 2009.
Bushey, J. T., Nallana, A. G., Montesdeoca, M. R., and Driscoll, C. T.:
Mercury dynamics of a northern hardwood canopy, Atmos. Environ., 42,
6905–6914, https://doi.org/10.1016/j.atmosenv.2008.05.043, 2008.
Castelle, S., Schäfer, J., Blanc, G., Dabrin, A., Lanceleur, L., and
Masson, M.: Gaseous mercury at the air–water interface of a highly turbid
estuary (Gironde Estuary, France), Mar. Chem., 117, 42–51,
https://doi.org/10.1016/j.marchem.2009.01.005, 2009.
Castro, M. S., Moore, C., Sherwell, J., and Brooks, S. B.: Dry deposition of
gaseous oxidized mercury in Western Maryland, Sci. Total Environ., 417–418,
232–240, https://doi.org/10.1016/j.scitotenv.2011.12.044, 2012.
Chen, L., Li, Y., Liu, C., Guo, L., and Wang, X.: Wet deposition of mercury
in Qingdao, a coastal urban city in China: Concentrations, fluxes, and
influencing factors, Atmos. Environ., 174, 204–213,
https://doi.org/10.1016/j.atmosenv.2017.11.059, 2018.
Cheng, I. and Zhang, L.: Uncertainty assessment of gaseous oxidized mercury
measurements collected by Atmospheric Mercury Network, Environ. Sci.
Technol., 51, 855–862, 2017.
Cheng, I., Zhang, L., and Mao, H.: Relative contributions of gaseous
oxidized mercury and fine and coarse particle-bound mercury to mercury wet
deposition at nine monitoring sites in North America, J. Geophys. Res.-Atmos., 120, 8549–8562, https://doi.org/10.1002/2015jd023769, 2015.
Cheng, Z. L., Luo, Y., Zhang, T., and Duan, L.: Deposition of Sulfur,
Nitrogen and Mercury in Two Typical Forest Ecosystems in Southern China,
Environ. Sci., 38, 5004–5011, https://doi.org/10.13227/j.hjkx.201705103, 2017 (in Chinese).
Choi, H.-D., Sharac, T. J., and Holsen, T. M.: Mercury deposition in the
Adirondacks: A comparison between precipitation and throughfall, Atmos.
Environ., 42, 1818–1827, https://doi.org/10.1016/j.atmosenv.2007.11.036, 2008.
Ci, Z., Peng, F., Xue, X., and Zhang, X.: Air–surface exchange of gaseous mercury over permafrost soil: an investigation at a high-altitude (4700 m a.s.l.) and remote site in the central Qinghai–Tibet Plateau, Atmos. Chem. Phys., 16, 14741–14754, https://doi.org/10.5194/acp-16-14741-2016, 2016.
Ci, Z. J., Zhang, X. S., and Wang, Z. W.: Enhancing atmospheric mercury
research in China to improve the current understanding of the global mercury
cycle: The need for urgent and closely coordinated efforts, Environ. Sci.
Technol., 46, 5636–5642, 2012.
Connan, O., Maro, D., Hébert, D., Roupsard, P., Goujon, R., Letellier,
B., and Le Cavelier, S.: Wet and dry deposition of particles associated
metals (Cd, Pb, Zn, Ni, Hg) in a rural wetland site, Marais Vernier, France,
Atmos. Environ., 67, 394–403, https://doi.org/10.1016/j.atmosenv.2012.11.029, 2013.
Converse, A. D., Riscassi, A. L., and Scanlon, T. M.: Seasonal variability
in gaseous mercury fluxes measured in a high-elevation meadow, Atmos.
Environ., 44, 2176–2185, https://doi.org/10.1016/j.atmosenv.2010.03.024, 2010.
Converse, A. D., Riscassi, A. L., and Scanlon, T. M.: Seasonal contribution
of dewfall to mercury deposition determined using a micrometeorological
technique and dew chemistry, J. Geophys. Res.-Atmos., 119, 284–292,
https://doi.org/10.1002/2013JD020491, 2014.
Dastoor, A. P. and Larocque, Y.: Global circulation of atmospheric mercury:
a modelling study, Atmos. Environ., 38, 147–161,
https://doi.org/10.1016/j.atmosenv.2003.08.037, 2004.
Dutt, U., Nelson, P. F., Morrison, A. L., and Strezov, V.: Mercury wet
deposition and coal-fired power station contributions: An Australian study,
Fuel Process. Technol., 90, 1354–1359, https://doi.org/10.1016/j.fuproc.2009.06.019, 2009.
Enrico, M., Roux, G. L., Marusczak, N., Heimburger, L. E., Claustres, A.,
Fu, X., Sun, R., and Sonke, J. E.: Atmospheric mercury transfer to peat bogs
dominated by gaseous elemental mercury dry deposition, Environ. Sci.
Technol., 50, 2405–2412, https://doi.org/10.1021/acs.est.5b06058, 2016.
Fang, G.-C., Tsai, J.-H., Lin, Y.-H., and Chang, C.-Y.: Dry deposition of
atmospheric particle-bound mercury in the Middle Taiwan, Aerosol Air Qual.
Res., 12, 1298–1308, https://doi.org/10.4209/aaqr.2012.04.0093, 2012a.
Fang, G. C., Zhang, L., and Huang, C. S.: Measurements of size-fractionated
concentration and bulk dry deposition of atmospheric particulate bound
mercury, Atmos. Environ., 61, 371–377, https://doi.org/10.1016/j.atmosenv.2012.07.052,
2012b.
Fang, G.-C., Lin, Y.-H., and Chang, C.-Y.: Use of mercury dry deposition
samplers to quantify dry deposition of particulate-bound mercury and
reactive gaseous mercury at a traffic sampling site, Environ. Forensics, 14,
182–186, https://doi.org/10.1080/15275922.2013.814177, 2013.
Fernandez, D., Torregrosa, A., Weiss-Penzias, P., Zhang, B. J., Sorensen, D.,
Cohen, R. E., McKinley, G. H., Kleingartner, L., Oliphant, A., and Bowman, M.: Fog
Water Collection Effectiveness: Mesh Intercomparisons, Aerosol Air Qual.
Res., 18, 270–283, https://doi.org/10.4209/aaqr.2017.01.0040, 2018.
Fisher, L. S. and Wolfe, M. H.: Examination of mercury inputs by
throughfall and litterfall in the Great Smoky Mountains National Park,
Atmos. Environ., 47, 554–559, https://doi.org/10.1016/j.atmosenv.2011.10.017, 2012.
Fostier, A. H., Melendez-Perez, J. J., and Richter, L.: Litter mercury
deposition in the Amazonian rainforest, Environ. Pollut., 206, 605–610,
https://doi.org/10.1016/j.envpol.2015.08.010, 2015.
Fragoso, C. P., Bernini, E., Araújo, B. F., Almeida, M. G. D., and
Rezende, C. E. D.: Mercury in litterfall and sediment using elemental and
isotopic composition of carbon and nitrogen in the mangrove of Southeastern
Brazil, Estuar. Coast. Shelf S., 202, 30–39,
https://doi.org/10.1016/j.ecss.2017.12.005, 2018.
Fritsche, J., Obrist, D., Zeeman, M., Conen, F., Eugster, W., and Alewell,
C.: Elemental mercury fluxes over a sub-alpine grassland determined with two
micrometeorological methods, Atmos. Environ., 42, 2922–2933,
https://doi.org/10.1016/j.atmosenv.2007.12.055, 2008.
Fu, X., Feng, X., Zhu, W., Zheng, W., Wang, S., and Lu, J. Y.: Total
particulate and reactive gaseous mercury in ambient air on the eastern slope
of the Mt. Gongga area, China, Appl. Geochem., 23, 408–418,
https://doi.org/10.1016/j.apgeochem.2007.12.018, 2008.
Fu, X., Feng, X., Zhu, W., Rothenberg, S., Yao, H., and Zhang, H.: Elevated
atmospheric deposition and dynamics of mercury in a remote upland forest of
southwestern China, Environ. Pollut., 158, 2324–2333,
https://doi.org/10.1016/j.envpol.2010.01.032, 2010a.
Fu, X. W., Feng, X., Dong, Z. Q., Yin, R. S., Wang, J. X., Yang, Z. R., and Zhang, H.: Atmospheric gaseous elemental mercury (GEM) concentrations and mercury depositions at a high-altitude mountain peak in south China, Atmos. Chem. Phys., 10, 2425–2437, https://doi.org/10.5194/acp-10-2425-2010, 2010b.
Fu, X., Feng, X., Sommar, J., and Wang, S.: A review of studies on
atmospheric mercury in China, Sci. Total Environ., 421–422, 73–81,
https://doi.org/10.1016/j.scitotenv.2011.09.089, 2012.
Fu, X., Yang, X., Lang, X., Zhou, J., Zhang, H., Yu, B., Yan, H., Lin, C.-J., and Feng, X.: Atmospheric wet and litterfall mercury deposition at urban and rural sites in China, Atmos. Chem. Phys., 16, 11547–11562, https://doi.org/10.5194/acp-16-11547-2016, 2016a.
Fu, X., Marusczak, N., Heimbürger, L.-E., Sauvage, B., Gheusi, F., Prestbo, E. M., and Sonke, J. E.: Atmospheric mercury speciation dynamics at the high-altitude Pic du Midi Observatory, southern France, Atmos. Chem. Phys., 16, 5623–5639, https://doi.org/10.5194/acp-16-5623-2016, 2016b.
Gerson, J. R., Driscoll, C. T., Demers, J. D., Sauer, A. K., Blackwell, B.
D., Montesdeoca, M. R., Shanley, J. B., and Ross, D. S.: Deposition of
mercury in forests across a montane elevation gradient: Elevational and
seasonal patterns in methylmercury inputs and production, J. Geophys. Res.-Biogeo., 122, 1922–1939, https://doi.org/10.1002/2016jg003721, 2017.
Gichuki, S. W. and Mason, R. P.: Mercury and metals in South African
precipitation, Atmos. Environ., 79, 286–298,
https://doi.org/10.1016/j.atmosenv.2013.04.009, 2013.
Gichuki, S. W. and Mason, R. P.: Wet and dry deposition of mercury in
Bermuda, Atmos. Environ., 87, 249–257, https://doi.org/10.1016/j.atmosenv.2014.01.025,
2014.
Gong, P., Wang, X. P., Xue, Y. G., Xu, B. Q., and Yao, T. D.: Mercury
distribution in the foliage and soil profiles of the Tibetan forest:
processes and implications for regional cycling, Environ. Pollut., 188,
94–101, https://doi.org/10.1016/j.envpol.2014.01.020, 2014.
Gratz, L. E. and Keeler, G. J.: Sources of mercury in precipitation to
Underhill, VT, Atmos. Environ., 45, 5440–5449,
https://doi.org/10.1016/j.atmosenv.2011.07.001, 2011.
Guo, J., Kang, S., Huang, J., Zhang, Q., Rupakheti, M., Sun, S., Tripathee,
L., Rupakheti, D., Panday, A. K., Sillanpaa, M., and Paudyal, R.:
Characterizations of atmospheric particulate-bound mercury in the Kathmandu
Valley of Nepal, South Asia, Sci. Total Environ., 579, 1240–1248,
https://doi.org/10.1016/j.scitotenv.2016.11.110, 2017.
Guo, Y., Feng, X., Li, Z., He, T., Yan, H., Meng, B., Zhang, J., and Qiu,
G.: Distribution and wet deposition fluxes of total and methyl mercury in
Wujiang River Basin, Guizhou, China, Atmos. Environ., 42, 7096–7103,
https://doi.org/10.1016/j.atmosenv.2008.06.006, 2008.
Gustin, M. S., Lindberg, S. E., and Weisberg, P. J.: An update on the
natural sources and sinks of atmospheric mercury, Appl. Geochem., 23,
482–493, https://doi.org/10.1016/j.apgeochem.2007.12.010, 2008.
Gustin, M. S., Huang, J., Miller, M. B., Peterson, C., Jaffe, D. A.,
Ambrose, J., Finley, B. D., Lyman, S. N., Call, K., Talbot, R., Feddersen,
D., Mao, H., and Lindberg, S. E.: Do we understand what the mercury
speciation instruments are actually measuring? Results of RAMIX, Environ.
Sci. Technol., 47, 7295–7306, https://doi.org/10.1021/es3039104, 2013.
Gustin, M. S., Amos, H. M., Huang, J., Miller, M. B., and Heidecorn, K.: Measuring and modeling mercury in the atmosphere: a critical review, Atmos. Chem. Phys., 15, 5697–5713, https://doi.org/10.5194/acp-15-5697-2015, 2015.
Hall, N. L., Dvonch, J. T., Marsik, F. J., Barres, J. A., and Landis, M. S.:
An artificial turf-based surrogate surface collector for the direct
measurement of atmospheric mercury dry deposition, Int. J. Environ. Res.
Public Health, 14, 173, https://doi.org/10.3390/ijerph14020173, 2017.
Han, J.-S., Seo, Y.-S., Kim, M.-K., Holsen, T. M., and Yi, S.-M.: Total atmospheric mercury deposition in forested areas in South Korea, Atmos. Chem. Phys., 16, 7653–7662, https://doi.org/10.5194/acp-16-7653-2016, 2016.
Hansen, A. M. and Gay, D. A.: Observations of mercury wet deposition in
Mexico, Environ. Sci. Pollut. R. Int., 20, 8316–8325,
https://doi.org/10.1007/s11356-013-2012-3, 2013.
Holloway, T., Voigt, C., Morton, J., Spak, S. N., Rutter, A. P., and Schauer, J. J.: An assessment of atmospheric mercury in the Community Multiscale Air Quality (CMAQ) model at an urban site and a rural site in the Great Lakes Region of North America, Atmos. Chem. Phys., 12, 7117–7133, https://doi.org/10.5194/acp-12-7117-2012, 2012.
Holmes, H. A., Pardyjak, E. R., Perry, K. D., and Abbott, M. L.: Gaseous dry
deposition of atmospheric mercury: A comparison of two surface resistance
models for deposition to semiarid vegetation, J. Geophys. Res., 116,
S14306, https://doi.org/10.1029/2010jd015182, 2011.
Horowitz, H. M., Jacob, D. J., Zhang, Y., Dibble, T. S., Slemr, F., Amos, H. M., Schmidt, J. A., Corbitt, E. S., Marais, E. A., and Sunderland, E. M.: A new mechanism for atmospheric mercury redox chemistry: implications for the global mercury budget, Atmos. Chem. Phys., 17, 6353–6371, https://doi.org/10.5194/acp-17-6353-2017, 2017.
Huang, J. and Gustin, M. S.: Use of passive sampling methods and models to
understand sources of mercury deposition to high elevation sites in the
Western United States, Environ. Sci. Technol., 49, 432–441,
https://doi.org/10.1021/es502836w, 2015a.
Huang, J. and Gustin, M. S.: Uncertainties of gaseous oxidized mercury
measurements using KCl-coated denuders, cation-exchange membranes, and nylon
membranes: Humidity influences, Environ. Technol., 49, 6102–6108,
https://doi.org/10.1021/acs.est.5b00098, 2015b.
Huang, J., Choi, H. D., Landis, M. S., and Holsen, T. M.: An application of
passive samplers to understand atmospheric mercury concentration and dry
deposition spatial distributions, J. Environ. Monit., 14, 2976–2982,
https://doi.org/10.1039/c2em30514c, 2012a.
Huang, J., Kang, S. C., Zhang, Q. G., Yan, H. Y., Guo, J. M., Jenkins, M.
G., Zhang, G. S., and Wang, K.: Wet deposition of mercury at a remote site
in the Tibetan Plateau: Concentrations, speciation, and fluxes, Atmos.
Environ., 62, 540–550, https://doi.org/10.1016/j.atmosenv.2012.09.003, 2012b.
Huang, J., Kang, S., Wang, S., Wang, L., Zhang, Q., Guo, J., Wang, K.,
Zhang, G., and Tripathee, L.: Wet deposition of mercury at Lhasa, the
capital city of Tibet, Sci. Total Environ., 447, 123–132,
https://doi.org/10.1016/j.scitotenv.2013.01.003, 2013a.
Huang, J. Y., Miller, M. B., Weiss-Penzias, P., and Gustin, M. S.:
Comparison of Gaseous Oxidized Hg Measured by KCl-Coated Denuders, and Nylon
and Cation Exchange Membranes, Environ. Sci. Technol., 47, 7307–7316,
2013b.
Huang, J., Lyman, S. N., Hartman, J. S., and Gustin, M. S.: A review of
passive sampling systems for ambient air mercury measurements,
Environ. Sci.-Proc. Imp., 16, 374–392, https://doi.org/10.1039/c3em00501a, 2014.
Huang, J., Kang, S., Zhang, Q., Guo, J., Sillanpaa, M., Wang, Y., Sun, S.,
Sun, X., and Tripathee, L.: Characterizations of wet mercury deposition on a
remote high-elevation site in the southeastern Tibetan Plateau, Environ.
Pollut., 206, 518–526, https://doi.org/10.1016/j.envpol.2015.07.024, 2015.
Huang, J., Kang, S., Guo, J., Zhang, Q., Cong, Z., Sillanpää, M.,
Zhang, G., Sun, S., and Tripathee, L.: Atmospheric particulate mercury in
Lhasa city, Tibetan Plateau, Atmos. Environ., 142, 433–441,
https://doi.org/10.1016/j.atmosenv.2016.08.021, 2016.
Huang, J., Miller, M. B., Edgerton, E., and Sexauer Gustin, M.: Deciphering potential chemical compounds of gaseous oxidized mercury in Florida, USA, Atmos. Chem. Phys., 17, 1689–1698, https://doi.org/10.5194/acp-17-1689-2017, 2017.
Jaffe, D. A., Lyman, S., Amos, H. M., Gustin, M. S., Huang, J., Selin, N.
E., Levin, L., ter Schure, A., Mason, R. P., Talbot, R., Rutter, A., Finley,
B., Jaeglé, L., Shah, V., McClure, C., Ambrose, J., Gratz, L., Lindberg,
S., Weiss-Penzias, P., Sheu, G.-R., Feddersen, D., Horvat, M., Dastoor, A.,
Hynes, A. J., Mao, H., Sonke, J. E., Slemr, F., Fisher, J. A., Ebinghaus,
R., Zhang, Y., and Edwards, G.: Progress on Understanding Atmospheric
Mercury Hampered by Uncertain Measurements, Environ. Sci. Technol., 48,
7204–7206, https://doi.org/10.1021/es5026432, 2014.
Juillerat, J. I., Ross, D. S., and Bank, M. S.: Mercury in litterfall and
upper soil horizons in forested ecosystems in Vermont, USA, Environ.
Toxicol. Chem., 31, 1720–1729, https://doi.org/10.1002/etc.1896, 2012.
Katata, G.: Fogwater deposition modeling for terrestrial ecosystems: A
review of developments and measurements, J. Geophys. Res.-Atmos., 119, 8137–8159,
https://doi.org/10.1002/2014jd021669, 2014.
Kim, M.-G., Lee, B.-K., and Kim, H.-J.: Cloud/fog water chemistry at a high
elevation site in South Korea, J. Atmos. Chem., 55, 13–29,
https://doi.org/10.1007/s10874-005-9004-8, 2006.
Lai, S. O., Huang, J., Hopke, P. K., and Holsen, T. M.: An evaluation of
direct measurement techniques for mercury dry deposition, Sci. Total
Environ., 409, 1320–1327, https://doi.org/10.1016/j.scitotenv.2010.12.032, 2011.
Larssen, T., de Wit, H. A., Wiker, M., and Halse, K.: Mercury budget of a
small forested boreal catchment in southeast Norway, Sci. Total Environ.,
404, 290–296, https://doi.org/10.1016/j.scitotenv.2008.03.013, 2008.
Lawson, S. T., Scherbatskoy, T. D., Malcolm, E. G., and Keeler, G. J.: Cloud
water and throughfall deposition of mercury and trace elements in a high
elevation spruce–fir forest at Mt. Mansfield, Vermont, J. Environ. Monitor.,
5, 578–583, https://doi.org/10.1039/b210125d, 2003.
Lin, C.-J., Pongprueksa, P., Lindberg, S. E., Pehkonen, S. O., Byun, D., and
Jang, C.: Scientific uncertainties in atmospheric mercury models I: Model
science evaluation, Atmos. Environ., 40, 2911–2928, 2006.
Lin, C.-J., Pongprueksa, P., Lindberg, S. E., Pehkonen, S. O., Jang, C.,
Braverman, T., and Ho, T. C.: Scientific uncertainties in atmospheric
mercury models II: Sensitivity analysis in the CONUS domain, Atmos.
Environ., 41, 6544–6560, 2007.
Lin, C.-J., Pan, L., Streets, D. G., Shetty, S. K., Jang, C., Feng, X., Chu, H.-W., and Ho, T. C.: Estimating mercury emission outflow from East Asia using CMAQ-Hg, Atmos. Chem. Phys., 10, 1853–1864, https://doi.org/10.5194/acp-10-1853-2010, 2010.
Lindberg, S. and Meyers, T.: Development of an automated micrometeorological
method for measuring the emission of mercury vapor from wetland vegetation,
Wetl. Ecol. Manag., 9, 333–347, 2001.
Lindberg, S. E., Bullock, R., Ebinghaus, R., Engstrom, D., Feng, X. B.,
Fitzgerald, W., Pirrone, N., Prestbo, E., and Seigneur, C.: A synthesis of
progress and uncertainties in attributing the sources of mercury in
deposition, Ambio, 36, 19–32, 2007.
Lombard, M. A. S., Bryce, J. G., Mao, H., and Talbot, R.: Mercury deposition in Southern New Hampshire, 2006–2009, Atmos. Chem. Phys., 11, 7657–7668, https://doi.org/10.5194/acp-11-7657-2011, 2011.
Lu, A. and Liu, H.: Study on the time distribution characteristics and
source of wet deposition mercury in weinan city, Journal of Arid Land
Resources and Environment, 32, 62–67, https://doi.org/10.13448/j.cnki.jalre.2018.108, 2018 (in Chinese).
Luo, Y., Duan, L., Driscoll, C. T., Xu, G. Y., Shao, M. S., Taylor, M.,
Wang, S. X., and Hao, J. M.: Foliage/atmosphere exchange of mercury in a
subtropical coniferous forest in south China, J. Geophys. Res.-Biogeo., 121,
2006–2016, https://doi.org/10.1002/2016jg003388, 2016.
Lyman, S. N., Gustin, M. S., Prestbo, E. M., and Marsik, F. J.: Estimation
of dry deposition of atmospheric mercury in Nevada by direct and indirect
methods, Environ. Sci. Technol., 41, 1970–1976, 2007.
Lyman, S. N., Gustin, M. S., Prestbo, E. M., Kilner, P. I., Edgerton, E.,
and Hartsell, B.: Testing and application of surrogate surfaces for
understanding potential gaseous oxidized mercury dry deposition, Environ.
Sci. Technol., 43, 6235–6241, 2009.
Lyman, S. N., Jaffe, D. A., and Gustin, M. S.: Release of mercury halides from KCl denuders in the presence of ozone, Atmos. Chem. Phys., 10, 8197–8204, https://doi.org/10.5194/acp-10-8197-2010, 2010.
Lynam, M., Dvonch, J. T., Barres, J., and Percy, K.: Atmospheric wet
deposition of mercury to the Athabasca Oil Sands Region, Alberta, Canada,
Air Qual. Atmos. Health, 11, 83–93, https://doi.org/10.1007/s11869-017-0524-6, 2017.
Lynam, M. M., Dvonch, J. T., Hall, N. L., Morishita, M., and Barres, J. A.:
Spatial patterns in wet and dry deposition of atmospheric mercury and trace
elements in central Illinois, USA, Environ. Sci. Pollut. R. Int., 21,
4032–4043, https://doi.org/10.1007/s11356-013-2011-4, 2014.
Ma, M., Wang, D., Du, H., Sun, T., Zhao, Z., and Wei, S.: Atmospheric
mercury deposition and its contribution of the regional atmospheric
transport to mercury pollution at a national forest nature reserve,
southwest China, Environ. Sci. Pollut. R. Int., 22, 20007–20018,
https://doi.org/10.1007/s11356-015-5152-9, 2015.
Ma, M., Wang, D., Du, H., Sun, T., Zhao, Z., Wang, Y., and Wei, S.: Mercury dynamics and mass balance in a subtropical forest, southwestern China, Atmos. Chem. Phys., 16, 4529–4537, https://doi.org/10.5194/acp-16-4529-2016, 2016.
Malcolm, E. G. and Keeler, G. J.: Measurements of Mercury in Dew:
Atmospheric Removal of Mercury Species to a Wetted Surface, Environ. Sci.
Technol., 36, 2815–2821, https://doi.org/10.1021/es011174z, 2002.
Malcolm, E. G., Keeler, G. J., Lawson, S. T., and Sherbatskoy, T. D.:
Mercury and trace elements in cloud water and precipitation collected on Mt.
Mansfield, Vermont, J. Environ. Monitor., 5, 584–590, https://doi.org/10.1039/b210124f, 2003.
Marsik, F. J., Keeler, G. J., and Landis, M. S.: The dry-deposition of
speciated mercury to the Florida Everglades: Measurements and modeling,
Atmos. Environ., 41, 136–149, https://doi.org/10.1016/j.atmosenv.2006.07.032, 2007.
Marumoto, K. and Matsuyama, A.: Mercury speciation in wet deposition
samples collected from a coastal area of Minamata Bay, Atmos. Environ., 86,
220–227, https://doi.org/10.1016/j.atmosenv.2013.12.011, 2014.
McClure, C. D., Jaffe, D. A., and Edgerton, E. S.: Evaluation of the KCl
denuder method for gaseous oxidized mercury using HgBr2 at an in-service
AMNet site, Environ. Sci. Technol., 48, 11437–11444, https://doi.org/10.1021/es502545k,
2014.
Meier, C. E., Stanturf, J. A., and Gardiner, E. S.: Litterfall in the hardwood
forest of a minor alluvial floodplain, Forest Ecol. Manag., 234, 60–57,
https://doi.org/10.1016/j.foreco.2006.06.026, 2006.
Meyers, T. P., Hall, M. E., Lindberg, S. E., and Kim, K.: Use of the
modified Bowen-ratio technique to measure fluxes of trace gases, Atmos.
Environ., 30, 3321–3329, 1996.
Miller, M. B., Gustin, M. S., and Eckley, C. S.: Measurement and scaling of
air-surface mercury exchange from substrates in the vicinity of two Nevada
gold mines, Sci. Total Environ., 409, 3879–3886,
https://doi.org/10.1016/j.scitotenv.2011.05.040, 2011.
Montecinos, S., Carvajal, D., and Cereceda, P., Concha, M.: Collection
efficiency of fog events, Atmos. Res., 209, 163–169,
https://doi.org/10.1016/j.atmosres.2018.04.004, 2018.
Navrátil, T., Shanley, J., Rohovec, J., Hojdová, M.,
Penížek, V., and Buchtová, J.: Distribution and pools of
mercury in Czech forest soils, Water Air Soil Poll., 225,
1829, https://doi.org/10.1007/s11270-013-1829-1, 2014.
Nguyen, D. L., Kim, J. Y., Shim, S. G., Ghim, Y. S., and Zhang, X. S.:
Shipboard and ground measurements of atmospheric particulate mercury and
total mercury in precipitation over the Yellow Sea region, Environ. Pollut.,
219, 262–274, https://doi.org/10.1016/j.envpol.2016.10.020, 2016.
Obrist, D., Johnson, D. W., and Lindberg, S. E.: Mercury concentrations and pools in four Sierra Nevada forest sites, and relationships to organic carbon and nitrogen, Biogeosciences, 6, 765–777, https://doi.org/10.5194/bg-6-765-2009, 2009.
Obrist, D., Johnson, D. W., and Edmonds, R. L.: Effects of vegetation type
on mercury concentrations and pools in two adjacent coniferous and deciduous
forests, J. Plant Nutr. Soil Sc., 175, 68–77,
https://doi.org/10.1002/jpln.201000415, 2012.
Obrist, D., Kirk, J. L., Zhang, L., Sunderland, E. M., Jiskra, M., and
Selin, N. E.: A review of global environmental mercury processes in response
to human and natural perturbations: Changes of emissions, climate, and land
use, Ambio, 47, 116–140, https://doi.org/10.1007/s13280-017-1004-9, 2018.
Peterson, C., Alishahi, M., and Gustin, M. S.: Testing the use of passive
sampling systems for understanding air mercury concentrations and dry
deposition across Florida, USA, Sci. Total Environ., 424, 297–307,
https://doi.org/10.1016/j.scitotenv.2012.02.031, 2012.
Poissant, L., Pilote, M., Xu, X., and Zhang, H.: Atmospheric mercury
speciation and deposition in the Bay St. Francois wetlands, J. Geophys.
Res., 109, D11301, https://doi.org/10.1029/2003JD004364,2004.
Poissant, L., Pilote, M., Yumvihoze, E., and Lean, D.: Mercuryconcentrations
and foliage/atmosphere fluxes in a maple forestecosystem in Quebec, Canada,
J. Geophys. Res.-Atmos., 113, 10307–10319,
https://doi.org/10.1029/2007jd009510, 2008.
Prestbo, E. M. and Gay, D. A.: Wet deposition of mercury in the US and
Canada, 1996–2005: Results and analysis of the NADP mercury deposition
network (MDN), Atmos. Environ., 43, 4223–4233,
https://doi.org/10.1016/j.atmosenv.2009.05.028, 2009.
Qin, C., Wang, Y., Peng, Y., and Wang, D.: Four-year record of mercury wet
deposition in one typical industrial city in southwest China, Atmos.
Environ., 142, 442–451, https://doi.org/10.1016/j.atmosenv.2016.08.016, 2016.
Richardson, J. B. and Friedland, A. J.: Mercury in coniferous and deciduous upland forests in northern New England, USA: implications of climate change, Biogeosciences, 12, 6737–6749, https://doi.org/10.5194/bg-12-6737-2015, 2015.
Risch, M. and Kenski, D.: Spatial Patterns and Temporal Changes in
Atmospheric-Mercury Deposition for the Midwestern USA, 2001–2016,
Atmosphere, 9, 29, https://doi.org/10.3390/atmos9010029, 2018.
Risch, M. R., DeWild, J. F., Krabbenhoft, D. P., Kolka, R. K., and Zhang,
L.: Mercury in Litterfall at Selected National Atmospheric Deposition
Program Mercury Deposition Network Sites in the Eastern United States,
2007–2009, Environ. Pollut., 161, 284–290, 2012.
Risch, M. R., DeWild, J. F., Gay, D. A., Zhang, L., Boyer, E. W., and
Krabbenhoft, D. P.: Atmospheric mercury deposition to forests in the eastern
USA, Environ. Pollut., 228, 8–18, https://doi.org/10.1016/j.envpol.2017.05.004, 2017.
Ritchie, C. D., Richards, W., and Arp, P. A.: Mercury in fog on the Bay of
Fundy (Canada), Atmos. Environ., 40, 6321–6328,
https://doi.org/10.1016/j.atmosenv.2006.05.057, 2006.
Rutter, A. P. and Schauer, J. J.: The effect of temperature on the
gas-particle partitioning of reactive mercury in atmospheric aerosols,
Atmos. Environ., 41, 8647–8657,
https://doi.org/10.1016/j.atmosenv.2007.07.024, 2007.
Sather, M. E., Mukerjee, S., Smith, L., Mathew, J., Jackson, C., Callison,
R., Scrapper, L., Hathcoat, A., Adam, J., Keese, D., Ketcher, P., Brunette,
R., Karlstrom, J., and Van der Jagt, G.: Gaseous oxidized mercury dry
deposition measurements in the Four Corners area and Eastern Oklahoma,
U.S.A, Atmos. Pollut. Res., 4, 168–180, https://doi.org/10.5094/apr.2013.017, 2013.
Sather, M. E., Mukerjee, S., Allen, K. L., Smith, L., Mathew, J., Jackson,
C., Callison, R., Scrapper, L., Hathcoat, A., Adam, J., Keese, D., Ketcher,
P., Brunette, R., Karlstrom, J., and Van der Jagt, G.: Gaseous oxidized
mercury dry deposition measurements in the southwestern USA: A comparison
between Texas, Eastern Oklahoma, and the Four Corners Area, Sci. World J.,
2014, 580723, https://doi.org/10.1155/2014/580723, 2014.
Schroeder, W. H. and Munthe, J.: Atmospheric mercury – An overview, Atmos.
Environ., 32, 809–822, 1998.
Schwab, J. J., Casson, P., Brandt, R., Husain, L., Dutkewicz, V., Wolfe, D.,
Demerjian, K. L., Civerolo, K. L., Rattigan, O. V., Felton, H. D., and
Dukett, J. E.: Atmospheric chemistry measurements at Whiteface Mountain, NY:
Cloud water chemistry, precipitation chemistry, and particulate matter,
Aerosol Air Qual. Res., 16, 841–854, https://doi.org/10.4209/aaqr.2015.05.0344, 2016.
Selin, N. E. and Jacob, D. J.: Seasonal and spatial patterns of mercury wet
deposition in the United States: Constraints on the contribution from North
American anthropogenic sources, Atmos. Environ., 42, 5193–5204,
https://doi.org/10.1016/j.atmosenv.2008.02.069, 2008.
Seo, Y.-S., Han, Y.-J., Choi, H.-D., Holsen, T. M., and Yi, S.-M.:
Characteristics of total mercury (TM) wet deposition: Scavenging of
atmospheric mercury species, Atmos. Environ., 49, 69–76,
https://doi.org/10.1016/j.atmosenv.2011.12.031, 2012.
Sexauer Gustin, M., Weiss-Penzias, P. S., and Peterson, C.: Investigating sources of gaseous oxidized mercury in dry deposition at three sites across Florida, USA, Atmos. Chem. Phys., 12, 9201–9219, https://doi.org/10.5194/acp-12-9201-2012, 2012.
Shen, G., Chen, D., Wu, Y., Liu, L., and Liu, C.: Spatial patterns and
estimates of global forest litterfall, Ecosphere, 10, 1–13,
https://doi.org/10.1002/ecs2.2587, 2019.
Sheu, G.-R. and Lin, N.-H.: Mercury in cloud water collected on Mt. Bamboo
in northern Taiwan during the northeast monsoon season, Atmos. Environ., 45,
4454–4462, https://doi.org/10.1016/j.atmosenv.2011.05.036, 2011.
Sheu, G.-R. and Lin, N.-H.: Characterizations of wet mercury deposition to
a remote islet (Pengjiayu) in the subtropical Northwest Pacific Ocean,
Atmos. Environ., 77, 474–481, https://doi.org/10.1016/j.atmosenv.2013.05.038, 2013.
Sheu, G.-R., Gay, D. A., Schmeltz, D., Olson, M., Chang, S.-C., Lin, D.-W.,
and Nguyen, L. S. P.: A new monitoring effort for Asia: the Asia Pacific
Mercury Monitoring Network (APMMN), Atmosphere, 10, 481, https://doi.org/10.3390/atmos10090481, 2019.
Siudek, P., Kurzyca, I., and Siepak, J.: Atmospheric deposition of mercury
in central Poland: Sources and seasonal trends, Atmos. Res., 170, 14–22,
https://doi.org/10.1016/j.atmosres.2015.11.004, 2016.
Skov, H., Brooks, S. B., Goodsite, M. E., Lindberg, S. E., Meyers, T. P.,
Landis, M. S., Larsen, M. R. B., Jensen, B., McConville, G., and
Christensen, J.: Fluxes of reactive gaseous mercury measured with a newly
developed method using relaxed eddy accumulation, Atmos. Environ., 40,
5452–5463, https://doi.org/10.1016/j.atmosenv.2006.04.061, 2006.
Sommar, J., Zhu, W., Lin, C.-J., and Feng, X.: Field approaches to measure
Hg exchange between natural surfaces and the atmosphere – A review,
Crit. Rev. Env. Sci. Tec., 43, 1657–1739, https://doi.org/10.1080/10643389.2012.671733,
2013a.
Sommar, J., Zhu, W., Shang, L., Lin, C.-J., and Feng, X.: Seasonal variations in metallic mercury (Hg0) vapor exchange over biannual wheat–corn rotation cropland in the North China Plain, Biogeosciences, 13, 2029–2049, https://doi.org/10.5194/bg-13-2029-2016, 2016.
Sprovieri, F., Pirrone, N., Bencardino, M., D'Amore, F., Angot, H., Barbante, C., Brunke, E.-G., Arcega-Cabrera, F., Cairns, W., Comero, S., Diéguez, M. D. C., Dommergue, A., Ebinghaus, R., Feng, X. B., Fu, X., Garcia, P. E., Gawlik, B. M., Hageström, U., Hansson, K., Horvat, M., Kotnik, J., Labuschagne, C., Magand, O., Martin, L., Mashyanov, N., Mkololo, T., Munthe, J., Obolkin, V., Ramirez Islas, M., Sena, F., Somerset, V., Spandow, P., Vardè, M., Walters, C., Wängberg, I., Weigelt, A., Yang, X., and Zhang, H.: Five-year records of mercury wet deposition flux at GMOS sites in the Northern and Southern hemispheres, Atmos. Chem. Phys., 17, 2689–2708, https://doi.org/10.5194/acp-17-2689-2017, 2017.
Stankwitz, C., Kaste, J. M., and Friedland, A. J.: Threshold increases in
soil lead and mercury from tropospheric deposition across an elevational
gradient, Environ. Sci. Technol., 46, 8061–8068, https://doi.org/10.1021/es204208w, 2012.
Streets, D. G., Hao, J. M., Wu, Y., Jiang, J. K., Chan, M., Tian, H. Z., and
Feng, X. B.: Anthropogenic mercury emissions in China, Atmos. Environ., 39,
7789–7806, https://doi.org/10.1016/j.atmosenv.2005.08.029, 2005.
Teixeira, D. C., Montezuma, R. C., Oliveira, R. R., and Silva-Filho, E. V.:
Litterfall mercury deposition in Atlantic forest ecosystem from SE-Brazil,
Environ. Pollut., 164, 11–15, https://doi.org/10.1016/j.envpol.2011.10.032, 2012.
Teixeira, D. C., Lacerda, L. D., and Silva-Filho, E. V.: Mercury
sequestration by rainforests: The influence of microclimate and different
successional stages, Chemosphere, 168, 1186–1193,
https://doi.org/10.1016/j.chemosphere.2016.10.081, 2017.
Tørseth, K., Aas, W., Breivik, K., Fjæraa, A. M., Fiebig, M., Hjellbrekke, A. G., Lund Myhre, C., Solberg, S., and Yttri, K. E.: Introduction to the European Monitoring and Evaluation Programme (EMEP) and observed atmospheric composition change during 1972–2009, Atmos. Chem. Phys., 12, 5447–5481, https://doi.org/10.5194/acp-12-5447-2012, 2012.
Travnikov, O., Angot, H., Artaxo, P., Bencardino, M., Bieser, J., D'Amore, F., Dastoor, A., De Simone, F., Diéguez, M. D. C., Dommergue, A., Ebinghaus, R., Feng, X. B., Gencarelli, C. N., Hedgecock, I. M., Magand, O., Martin, L., Matthias, V., Mashyanov, N., Pirrone, N., Ramachandran, R., Read, K. A., Ryjkov, A., Selin, N. E., Sena, F., Song, S., Sprovieri, F., Wip, D., Wängberg, I., and Yang, X.: Multi-model study of mercury dispersion in the atmosphere: atmospheric processes and model evaluation, Atmos. Chem. Phys., 17, 5271–5295, https://doi.org/10.5194/acp-17-5271-2017, 2017.
UN Environment: Global Mercury Assessment 2018, UN Environment Programme,
Chemicals and Health Branch, Geneva, Switzerland, 2019.
USEPA: Method 1631, Revision E: Mercury in Water by Oxidation, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry, United States Environmental Protection Agency, Washington, DC, USA, 10–46, available at: http://water.epa.gov/scitech/methods/cwa/metals/mercury/index.cfm (last access: 27 December 2014), 2002.
Wan, Q., Feng, X., Lu, J., Zheng, W., Song, X., Li, P., Han, S., and Xu, H.:
Atmospheric mercury in Changbai Mountain area, northeastern China II. The
distribution of reactive gaseous mercury and particulate mercury and mercury
deposition fluxes, Environ. Res., 109, 721–727,
https://doi.org/10.1016/j.envres.2009.05.006, 2009.
Wang, X., Lin, C.-J., and Feng, X.: Sensitivity analysis of an updated bidirectional air–surface exchange model for elemental mercury vapor, Atmos. Chem. Phys., 14, 6273–6287, https://doi.org/10.5194/acp-14-6273-2014, 2014.
Wang, X., Bao, Z., Lin, C. J., Yuan, W., and Feng, X.: Assessment of global
mercury deposition through litterfall, Environ. Sci. Technol., 50,
8548–8557, https://doi.org/10.1021/acs.est.5b06351, 2016a.
Wang, X., Lin, C.-J., Lu, Z., Zhang, H., Zhang, Y., and Feng, X.: Enhanced
accumulation and storage of mercury on subtropical evergreen forest floor:
Implications on mercury budget in global forest ecosystems, J. Geophys. Res.-Biogeo., 121, 2096–2109, https://doi.org/10.1002/2016jg003446, 2016b.
Wang, Z., Zhang, X., Xiao, J., Ci, Z., and Yu, P.: Mercury fluxes and pools
in three subtropical forested catchments, southwest China, Environ. Pollut.,
157, 801–808, https://doi.org/10.1016/j.envpol.2008.11.018, 2009.
Weiss-Penzias, P., Fernandez, D., Moranville, R., and Saltikov, C.: A low
cost system for detecting fog events and triggering an active fog water
collector, Aerosol Air Qual. Res., 18, 214–233, https://doi.org/10.4209/aaqr.2016.11.0508,
2018.
Weiss-Penzias, P. S., Gustin, M. S., and Lyman, S. N.: Sources of gaseous
oxidized mercury and mercury dry deposition at two southeastern U.S. sites,
Atmos. Environ., 45, 4569–4579, https://doi.org/10.1016/j.atmosenv.2011.05.069, 2011.
Weiss-Penzias, P. S., Gay, D. A., Brigham, M. E., Parsons, M. T., Gustin, M.
S., and Ter Schure, A.: Trends in mercury wet deposition and mercury air
concentrations across the U.S. and Canada, Sci. Total Environ., 568,
546–556, https://doi.org/10.1016/j.scitotenv.2016.01.061, 2016a.
Weiss-Penzias, P., Coale, K., Heim, W., Fernandez, D., Oliphant, A., Dodge, C., Hoskins,
D., Farlin, J., Moranville, R., and Olson, A.: Total- and monomethyl-mercury and major
ions in coastal California fog water: Results from two years of sampling on
land and at sea, Elem. Sci. Anth., 4, 1–18,
https://doi.org/10.12952/journal.elementa.000101, 2016b.
Wetang'ula: Preliminary assessment of total mercury in bulk precipitation
around Olkaria Area, Kenya, Journal of Environmental Science and
Engineering, 1585–1595, 2011.
Wetherbee, G. A.: Precipitation collector bias and its effects on temporal
trends and spatial variability in National Atmospheric Deposition
Program/National Trends Network data, Environ. Pollut., 223, 90–101,
https://doi.org/10.1016/j.envpol.2016.12.036, 2017.
Wetherbee, G. A. and Martin, R. A.: External Quality Assurance Project Report
for the National Atmospheric Deposition Program's National Trends Network
and Mercury Deposition Network, 2015–2016, U.S. Geological Survey, Reston,
Virginia, 2018.
Wetherbee, G. A., Latysh, N. E., Gordon, J. D., and Krabbenhoft, D. P.:
Spatial and temporal variability of the overall error of National
Atmospheric Deposition Program measurements determined by the USGS
co-located–sampler program, water years 1989–2001, Environ. Pollut., 135,
407–418, https://doi.org/10.1016/j.envpol.2004.11.014, 2005.
Wright, G., Gustin, M. S., Weiss-Penzias, P., and Miller, M. B.:
Investigation of mercury deposition and potential sources at six sites from
the Pacific Coast to the Great Basin, USA, Sci. Total Environ., 470–471,
1099–1113, https://doi.org/10.1016/j.scitotenv.2013.10.071, 2014.
Wright, L. P. and Zhang, L.: An approach estimating bidirectional
air-surface exchange for gaseous elemental mercury at AMNet sites, J. Adv.
Model. Earth Sy., 7, 35–49, https://doi.org/10.1002/2014ms000367, 2015.
Wright, L. P., Zhang, L., and Marsik, F. J.: Overview of mercury dry deposition, litterfall, and throughfall studies, Atmos. Chem. Phys., 16, 13399–13416, https://doi.org/10.5194/acp-16-13399-2016, 2016.
Xu, L., Chen, J., Yang, L., Yin, L., Yu, J., Qiu, T., and Hong, Y.:
Characteristics of total and methyl mercury in wet deposition in a coastal
city, Xiamen, China: Concentrations, fluxes and influencing factors on Hg
distribution in precipitation, Atmos. Environ., 99, 10–16,
https://doi.org/10.1016/j.atmosenv.2014.09.054, 2014.
Yu, Q., Luo, Y., Wang, S., Wang, Z., Hao, J., and Duan, L.: Gaseous elemental mercury (GEM) fluxes over canopy of two typical subtropical forests in south China, Atmos. Chem. Phys., 18, 495–509, https://doi.org/10.5194/acp-18-495-2018, 2018.
Zhang, H. H., Poissant, L., Xu, X. H., and Pilote, M.: Explorative and
innovative dynamic flux bag method development and testing for mercury
air-vegetation gas exchange fluxes, Atmos. Environ., 39, 7481–7493,
https://doi.org/10.1016/j.atmosenv.2005.07.068, 2005.
Zhang, L. and He, Z.: Technical Note: An empirical algorithm estimating dry deposition velocity of fine, coarse and giant particles, Atmos. Chem. Phys., 14, 3729–3737, https://doi.org/10.5194/acp-14-3729-2014, 2014.
Zhang, L., Brook, J. R., and Vet, R.: A revised parameterization for gaseous dry deposition in air-quality models, Atmos. Chem. Phys., 3, 2067–2082, https://doi.org/10.5194/acp-3-2067-2003, 2003.
Zhang, L., Blanchard, P., Gay, D. A., Prestbo, E. M., Risch, M. R., Johnson, D., Narayan, J., Zsolway, R., Holsen, T. M., Miller, E. K., Castro, M. S., Graydon, J. A., Louis, V. L. St., and Dalziel, J.: Estimation of speciated and total mercury dry deposition at monitoring locations in eastern and central North America, Atmos. Chem. Phys., 12, 4327–4340, https://doi.org/10.5194/acp-12-4327-2012, 2012.
Zhang, L., Wang, S. X., Wang, L., and Hao, J. M.: Atmospheric mercury concentration and chemical speciation at a rural site in Beijing, China: implications of mercury emission sources, Atmos. Chem. Phys., 13, 10505–10516, https://doi.org/10.5194/acp-13-10505-2013, 2013.
Zhang, L., Wang, S., Wu, Q., Wang, F., Lin, C.-J., Zhang, L., Hui, M., Yang, M., Su, H., and Hao, J.: Mercury transformation and speciation in flue gases from anthropogenic emission sources: a critical review, Atmos. Chem. Phys., 16, 2417–2433, https://doi.org/10.5194/acp-16-2417-2016, 2016a.
Zhang, L., Wu, Z., Cheng, I., Wright, L. P., Olson, M. L., Gay, D. A.,
Risch, M. R., Brooks, S., Castro, M. S., Conley, G. D., Edgerton, E. S.,
Holsen, T. M., Luke, W., Tordon, R., and Weiss-Penzias, P.: The estimated
six-year mercury dry deposition across North America, Environ. Sci.
Technol., 50, 12864–12873, https://doi.org/10.1021/acs.est.6b04276, 2016b.
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, L. M., Moran, M. D., Makar, P. A., Brook, J. R., and Gong, S. L.:
Modelling gaseous dry deposition in AURAMS: A unified regional air-quality
modelling system, Atmos. Environ., 36, 537–560, https://doi.org/10.1016/S1352-2310(01)00447-2, 2002.
Zhang, L. M., Wright, L. P., and Blanchard, P.: A review of current
knowledge concerning dry deposition of atmospheric mercury, Atmos. Environ.,
43, 5853–5864, https://doi.org/10.1016/j.atmosenv.2009.08.019, 2009.
Zhang, Y., Jaeglé, L., van Donkelaar, A., Martin, R. V., Holmes, C. D., Amos, H. M., Wang, Q., Talbot, R., Artz, R., Brooks, S., Luke, W., Holsen, T. M., Felton, D., Miller, E. K., Perry, K. D., Schmeltz, D., Steffen, A., Tordon, R., Weiss-Penzias, P., and Zsolway, R.: Nested-grid simulation of mercury over North America, Atmos. Chem. Phys., 12, 6095–6111, https://doi.org/10.5194/acp-12-6095-2012, 2012.
Zhang, Y., Liu, R., Wang, Y., Cui, X., and Qi, J.: Change characteristic of
atmospheric particulate mercury during dust weather of spring in Qingdao,
China, Atmos. Environ., 102, 376–383, https://doi.org/10.1016/j.atmosenv.2014.12.005, 2015.
Zhang, Y., Jacob, D. J., Horowitz, H. M., Chen, L., Amos, H. M.,
Krabbenhoft, D. P., Slemr, F., St Louis, V. L., and Sunderland, E. M.:
Observed decrease in atmospheric mercury explained by global decline in
anthropogenic emissions, P. Natl. Acad. Sci. USA, 113, 526–531,
2016.
Zhao, L. S., Xu, L. L., Wu, X., Zhao, G. Q., Jiao, L., Chen, J. S., Hong Y. W.,
Deng J. J., Chen, Y. T., Yang, K., Hu, G. R., and Yu, R. L.: Characteristics and
sources of mercury in precipitation collected at the urban, suburban and
rural sites in a city of Southeast China, Atmos. Res., 211, 21–29,
https://doi.org/10.1016/j.atmosres.2018.04.019, 2018.
Zhao, Z., Wang, D., Wang, Y., Mu, Z., and Zhu, J.: Wet deposition flux and
runoff output flux of mercury in a typical small agricultural watershed in
Three Gorges Reservoir areas, Environ. Sci. Pollut. R. Int., 22,
5538–5551, https://doi.org/10.1007/s11356-014-3701-2, 2015.
Zhou, J., Wang, Z., Sun, T., Zhang, H., and Zhang, X.: Mercury in
terrestrial forested systems with highly elevated mercury deposition in
southwestern China: The risk to insects and potential release from
wildfires, Environ. Pollut., 212, 188–196, https://doi.org/10.1016/j.envpol.2016.01.003,
2016.
Zhou, J., Wang, Z., Zhang, X., and Gao, Y.: Mercury concentrations and pools
in four adjacent coniferous and deciduous upland forests in Beijing, China,
J. Geophys. Res.-Biogeo., 122, 1260–1274, https://doi.org/10.1002/2017jg003776, 2017.
Zhu, J., Wang, T., Talbot, R., Mao, H., Yang, X., Fu, C., Sun, J., Zhuang, B., Li, S., Han, Y., and Xie, M.: Characteristics of atmospheric mercury deposition and size-fractionated particulate mercury in urban Nanjing, China, Atmos. Chem. Phys., 14, 2233–2244, https://doi.org/10.5194/acp-14-2233-2014, 2014.
Zhu, J., Wang, T., Bieser, J., and Matthias, V.: Source attribution and process analysis for atmospheric mercury in eastern China simulated by CMAQ-Hg, Atmos. Chem. Phys., 15, 8767–8779, https://doi.org/10.5194/acp-15-8767-2015, 2015.
Zhu, W., Sommar, J., Lin, C.-J., and Feng, X.: Mercury vapor air–surface exchange measured by collocated micrometeorological and enclosure methods – Part I: Data comparability and method characteristics, Atmos. Chem. Phys., 15, 685–702, https://doi.org/10.5194/acp-15-685-2015, 2015.
Zhu, W., Lin, C.-J., Wang, X., Sommar, J., Fu, X., and Feng, X.: Global observations and modeling of atmosphere–surface exchange of elemental mercury: a critical review, Atmos. Chem. Phys., 16, 4451–4480, https://doi.org/10.5194/acp-16-4451-2016, 2016.
Short summary
One of the most important processes in the global mercury biogeochemical cycling is the deposition of atmospheric mercury to the land surfaces. In this paper, results of wet, dry, and forest Hg deposition from global observation networks, individual monitoring studies, and observation-based simulations are reviewed. Uncertainties in the observation and simulation of global speciated atmospheric Hg deposition to the land surfaces are systemically estimated.
One of the most important processes in the global mercury biogeochemical cycling is the...
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