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DOI10.1029/2019JD030566
Release of Perfluoroalkyl Substances From Melting Glacier of the Tibetan Plateau: Insights Into the Impact of Global Warming on the Cycling of Emerging Pollutants
Chen, Mengke1,2; Wang, Chuanfei1,3; Wang, Xiaoping1,2,3; Fu, Jianjie2,4; Gong, Ping1,2; Yan, Juping1,2; Yu, Zhengliang1,3; Yan, Fangping5; Nawab, Javed6
发表日期2019
ISSN2169-897X
EISSN2169-8996
卷号124期号:13页码:7442-7456
英文摘要

The Tibetan Plateau (TP) has encountered rapid warming, with more than 50% of lakes expanding and 80% of glaciers retreating. Melting glaciers are known as a secondary source of pollutants, but the dynamics and release features of water-soluble emerging chemicals have not been studied in the TP. Glacial ice and snow, meltwater runoff, rain, and lake water were collected in Nam Co basin, in the central TP. The total concentrations of perfluoroalkyl acids (PFAAs) were 1,413 pg/L for glacial ice, followed by 1,277 pg/L for meltwater runoff, 980 pg/L for lake water, and 616 pg/L for rain. Perfluorobutanoic acid is dominant in runoff and glacial ice, while lake water contained high proportions of perfluorobutane sulfonate and perfluorooctane sulfonate. During the melting season, meltwater runoff generally had greater PFAAs concentrations, and the PFAAs release fluxes were strongly related to the glacial melt intensity. Due to the direct input of PFAAs by melted glaciers, south shore of Lake Nam Co contained higher PFAAs concentrations. The estimated input fluxes of PFAAs to the lake by rain and glacial and nonglacial runoff were 1,425, 1,342, and 2,192 mg/day, respectively. Taken together, these evidences suggest that melting glaciers are sources of PFAAs, while the lake is the receptor. Given the continuity of glacial melt and high concentrations of water-soluble emerging pollutants in glacier, the melting process will increase the risks of emerging pollutants to freshwater sources and should be of great concern.


WOS研究方向Meteorology & Atmospheric Sciences
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/100541
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Sch Sci, Beijing, Peoples R China;
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing, Peoples R China;
5.Lappeenranta Univ Technol, Sch Engn Sci, Dept Green Chem, Mikkeli, Finland;
6.Abdul Wali Khan Univ, Dept Environm Sci, Mardan, Pakistan
推荐引用方式
GB/T 7714
Chen, Mengke,Wang, Chuanfei,Wang, Xiaoping,et al. Release of Perfluoroalkyl Substances From Melting Glacier of the Tibetan Plateau: Insights Into the Impact of Global Warming on the Cycling of Emerging Pollutants[J],2019,124(13):7442-7456.
APA Chen, Mengke.,Wang, Chuanfei.,Wang, Xiaoping.,Fu, Jianjie.,Gong, Ping.,...&Nawab, Javed.(2019).Release of Perfluoroalkyl Substances From Melting Glacier of the Tibetan Plateau: Insights Into the Impact of Global Warming on the Cycling of Emerging Pollutants.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(13),7442-7456.
MLA Chen, Mengke,et al."Release of Perfluoroalkyl Substances From Melting Glacier of the Tibetan Plateau: Insights Into the Impact of Global Warming on the Cycling of Emerging Pollutants".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.13(2019):7442-7456.
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