期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 115, 期 -, 页码 453-464出版社
SCIENCE PRESS
DOI: 10.1016/j.jes.2020.11.022
关键词
Persistent organic pollutants; Long-range atmospheric transport; Westerlies; Tibetan Plateau; Remote regions
资金
- National Natural Science Foundation of China [41473095, 41503112, 41773124, 41907327]
- Research Fund of Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control [Guikeneng 1701K008]
- China Scholarship Council [201806410038]
- Fundamental Research Funds for National Universities, China University of Geosciences (Wuhan)
By investigating the residual levels of POPs in soils from the eastern Pamirs and the influence of LRAT, it was found that different types of organic pollutants were detected at low concentrations.
Long-range atmospheric transport (LRAT) plays a crucial role in the occurrence of persistent organic pollutants (POPs) in remote regions. When studying the LRAT of POPs on the Tibetan Plateau, westerly-controlled regions have received insufficient attention compared with regions influenced by the Indian monsoon or air flow from East Asia. We investigated the residual levels of POPs in soils from the eastern Pamirs and used air backward trajectory analysis to elucidate the influence of potential source regions via LRAT. Organochlorine pesticides (OCPs, mainly comprising DDTs, HCHs, and HCB), polychlorinated biphenyls (PCBs, mainly comprising penta- and hexa-CBs), and polycyclic aromatic hydrocarbons (PAHs, mainly comprising three- and four-ring) were detected at low concentrations of 40-1000,
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