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  Impacts of Indian summer monsoon and stratospheric intrusion on air pollutants in the inland Tibetan Plateau

Yin, X., Kang, S., Foy, B. d., Rupakheti, D., Rupakheti, M., Cong, Z., Wan, X., Zhang, G., Zhang, Q. (2021): Impacts of Indian summer monsoon and stratospheric intrusion on air pollutants in the inland Tibetan Plateau. - Geoscience Frontiers, 12, 6, 101255.
https://doi.org/10.1016/j.gsf.2021.101255

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Item Permalink: https://publications.iass-potsdam.de/pubman/item/item_6001202 Version Permalink: https://publications.iass-potsdam.de/pubman/item/item_6001202_1
Genre: Journal Article

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 Creators:
Yin, Xiufeng1, Author
Kang, Shichang1, Author
Foy, Benjamin de1, Author
Rupakheti, Dipesh1, Author
Rupakheti, Maheswar2, Author              
Cong, Zhiyuan1, Author
Wan, Xin1, Author
Zhang, Guoshuai1, Author
Zhang, Qianggong1, Author
Affiliations:
1External Organizations, ou_persistent22              
2IASS Institute for Advanced Sustainability Studies Potsdam, ou_96022              

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Free keywords: Tibetan Plateau, Nam Co, PM2.5, Total gaseous mercury, Surface ozone
 Abstract: Air pollutants can be transported to the pristine regions such as the Tibetan Plateau, by monsoon and stratospheric intrusion. The Tibetan Plateau region has limited local anthropogenic emissions, while this region is influenced strongly by transport of heavy emissions mainly from South Asia. We conducted a comprehensive study on various air pollutants (PM2.5, total gaseous mercury, and surface ozone) at Nam Co Station in the inland Tibetan Plateau. Monthly mean PM2.5 concentration at Nam Co peaked in April before monsoon season, and decreased during the whole monsoon season (June–September). Monthly mean total gaseous mercury concentrations at Nam Co peaked in July and were in high levels during monsoon season. The Indian summer monsoon acted as a facilitator for transporting gaseous pollutants (total gaseous mercury) but a suppressor for particulate pollutants (PM2.5) during the monsoon season. Different from both PM2.5 and total gaseous mercury variabilities, surface ozone concentrations at Nam Co are primarily attributed to stratospheric intrusion of ozone and peaked in May. The effects of the Indian summer monsoon and stratospheric intrusion on air pollutants in the inland Tibetan Plateau are complex and require further studies.

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Language(s): eng - English
 Dates: 2021-092021-11
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.gsf.2021.101255
 Degree: -

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Title: Geoscience Frontiers
Source Genre: Journal, E14, SCI, Scopus, oa
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 12 (6) Sequence Number: 101255 Start / End Page: - Identifier: ISSN: 1674-9871
CoNE: https://publications.iass-potsdam.de/cone/journals/resource/20210628a