Articles | Volume 23, issue 7
https://doi.org/10.5194/acp-23-3937-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-3937-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Apr 2023
Research article |
| 04 Apr 2023
| 04 Apr 2023
Unexpectedly high concentrations of atmospheric mercury species in Lhasa, the largest city in the Tibetan Plateau
Huiming Lin
MOE Laboratory of Earth Surface Processes, College of Urban and
Environmental Sciences, Peking University, Beijing 100871, China
Yindong Tong
CORRESPONDING AUTHOR
School of Science, Tibet University, Lhasa 850000, China
School of Environmental Science and Engineering, Tianjin University,
Tianjin 300072, China
Long Chen
School of Geographic Sciences, East China Normal University, Shanghai
200241, China
Chenghao Yu
Key Laboratory of Microbial Technology for Industrial Pollution Control
of Zhejiang Province, College of Environment, Zhejiang University of
Technology, Hangzhou 310014, China
Zhaohan Chu
MOE Laboratory of Earth Surface Processes, College of Urban and
Environmental Sciences, Peking University, Beijing 100871, China
Qianru Zhang
MOE Laboratory of Earth Surface Processes, College of Urban and
Environmental Sciences, Peking University, Beijing 100871, China
Xiufeng Yin
State Key Laboratory of Cryospheric Science, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000,
China
Qianggong Zhang
Key Laboratory of Tibetan Environment Changes and Land Surface Processes,
Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing
100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing
100085, China
Shichang Kang
State Key Laboratory of Cryospheric Science, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000,
China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing
100085, China
Junfeng Liu
MOE Laboratory of Earth Surface Processes, College of Urban and
Environmental Sciences, Peking University, Beijing 100871, China
James Schauer
Department of Civil and Environmental Engineering, University of
Wisconsin–Madison, Madison, WI 53718, USA
Wisconsin State Laboratory of Hygiene, University of Wisconsin–Madison, Madison
WI 53718, USA
Benjamin de Foy
Department of Earth and Atmospheric Sciences, Saint Louis University,
St. Louis, MO 63108, USA
MOE Laboratory of Earth Surface Processes, College of Urban and
Environmental Sciences, Peking University, Beijing 100871, China
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Yongkang Xue, Tandong Yao, Aaron A. Boone, Ismaila Diallo, Ye Liu, Xubin Zeng, William K. M. Lau, Shiori Sugimoto, Qi Tang, Xiaoduo Pan, Peter J. van Oevelen, Daniel Klocke, Myung-Seo Koo, Tomonori Sato, Zhaohui Lin, Yuhei Takaya, Constantin Ardilouze, Stefano Materia, Subodh K. Saha, Retish Senan, Tetsu Nakamura, Hailan Wang, Jing Yang, Hongliang Zhang, Mei Zhao, Xin-Zhong Liang, J. David Neelin, Frederic Vitart, Xin Li, Ping Zhao, Chunxiang Shi, Weidong Guo, Jianping Tang, Miao Yu, Yun Qian, Samuel S. P. Shen, Yang Zhang, Kun Yang, Ruby Leung, Yuan Qiu, Daniele Peano, Xin Qi, Yanling Zhan, Michael A. Brunke, Sin Chan Chou, Michael Ek, Tianyi Fan, Hong Guan, Hai Lin, Shunlin Liang, Helin Wei, Shaocheng Xie, Haoran Xu, Weiping Li, Xueli Shi, Paulo Nobre, Yan Pan, Yi Qin, Jeff Dozier, Craig R. Ferguson, Gianpaolo Balsamo, Qing Bao, Jinming Feng, Jinkyu Hong, Songyou Hong, Huilin Huang, Duoying Ji, Zhenming Ji, Shichang Kang, Yanluan Lin, Weiguang Liu, Ryan Muncaster, Patricia de Rosnay, Hiroshi G. Takahashi, Guiling Wang, Shuyu Wang, Weicai Wang, Xu Zhou, and Yuejian Zhu
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Sulfate aerosols play an important climatic role and exert adverse effects on the ecological environment and human health. In this study, we present the triple oxygen isotopic composition of sulfate from the Mt. Everest region, southern Tibetan Plateau, and decipher the formation mechanisms of atmospheric sulfate in this pristine environment. The results indicate the important role of the S(IV) + O3 pathway in atmospheric sulfate formation promoted by conditions of high cloud water pH.
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Short summary
Lhasa is the largest city in the Tibetan Plateau, and its atmospheric mercury concentrations represent the highest level of pollution in this region. Unexpectedly high concentrations of atmospheric mercury species were found. Combined with the trajectory analysis, the high atmospheric mercury concentrations may have originated from external long-range transport. Local sources, especially special mercury-related sources, are important factors influencing the variability of atmospheric mercury.
Lhasa is the largest city in the Tibetan Plateau, and its atmospheric mercury concentrations...
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