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学科主题: 地理学::自然地理学
题名: A review of current knowledge and future prospects regarding persistent organic pollutants over the Tibetan Plateau
作者: Wang, XP (Wang, Xiaoping)1, 2; Gong, P (Gong, Ping)1, 2; Wang, CF (Wang, Chuanfei)1; Ren, J (Ren, Jiao)1, 3; Yao, TD (Yao, Tandong)1, 2
通讯作者: Wang, XP
关键词: POLYCYCLIC AROMATIC-HYDROCARBONS ; AIR-SOIL EXCHANGE ; POLYBROMINATED DIPHENYL ETHERS ; EUROPEAN BACKGROUND SOILS ; SEMIVOLATILE ORGANOCHLORINE COMPOUNDS ; RANGE ATMOSPHERIC TRANSPORT ; CANADIAN ROCKY-MOUNTAINS ; MT. QOMOLANGMA EVEREST ; FRESH-FALLEN SNOW ; POLYCHLORINATED-BIPHENYLS
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2016
DOI: 10.1016/j.scitotenv.2016.08.107
卷: 573, 期:0, 页:139-154
收录类别: SCI
合作性质: 国内
文章类型: Review
英文摘要: Since the turn of the century, our understanding of the quantities, transport pathways, and fate of persistent organic pollutants (POPs) over the Tibetan Plateau (TP), the largest and highest plateau on Earth, has greatly enhanced. We begin in this article by reviewing the available literature on the levels of POPs over the TP. In general, the levels of most POPs are similar or lower than values reported for other-background regions. However, dichlorodiphenyltrichloroethane (DDT) and hexachlorocyclohexane (HCH) levels in air and soil far exceed those measured in other mountainous areas. The East Asian monsoon, Indian Monsoon and westerly winds are responsible for the long-range atmospheric transport (LRAT) and arrival of POPs over the TP. Surface soil and vegetation act as "final sinks" for DDTs and other high molecular weight POPs. Linked to the continuous use of POPs in surrounding counties, LRAT and "cold trapping" by the TP can happen following emission-transport-deposition events, leading to the enrichment of POPs in the TP environment. Bioaccumulation of DDTs and high chlorinated PCBs have been found in Tibetan terrestrial and aquatic food chains, and newly emerging compounds such as polyfluoroalkyl substances and hexabromocyclododecanes have been widely detected in wild fish species. The corresponding ecological risks should be of great concern.
Climate change, such as increased temperatures and changing coverage of snow and glaciers, has the potential to affect the behavior and distribution of POPs. Therefore, long-term monitoring data are required. Ineffective regulation regarding POPs has been reported for countries in South Asia, emissions patterns, the outflow of POPs, and their seasonal and inter-annual variability should therefore 'be clarified.Estimating the loading of POPs, as well as how they move, within the TP, especially under the impact of glacial melt and global warming, should be a priority. (C) 2016 Elsevier B.V. All rights reserved.
语种: 英语
WOS记录号: WOS:000390071000014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7470
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Wang, XP ,Gong, P ,Wang, CF ,et al. A review of current knowledge and future prospects regarding persistent organic pollutants over the Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,573(0):139-154.
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