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Sources and environmental processes of polycyclic aromatic hydrocarbons and mercury along a southern slope of the Central Himalayas, Nepal
Pokhrel, B (Pokhrel, Balram)1,2; Gong, P (Gong, Ping)1,3; Wang, XP (Wang, Xiaoping)1,3; Gao, SP (Gao, Shaopeng)1; Wang, CF (Wang, Chuanfei)1; Yao, TD (Yao, Tandong)1,3; Wang, XP
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
2016
Volume23Issue:14Pages:13843-13852
DOI10.1007/s11356-016-6443-5
AbstractSemi-volatile pollutants can undergo long-range atmospheric transport from low-altitude source regions to high-altitude regions and then accumulate in surface matrices (soil and plants). The Himalayas is the highest mountain range worldwide, but there have been limited studies on the source, transport, and deposition of polycyclic aromatic hydrocarbons (PAHs) and mercury (Hg) in the region. In this study, atmospheric PAHs, and the PAHs and Hg in soil and foliage were determined along a transect on a southern slope of the Himalayas, Nepal. The study showed anthropogenic emissions of PAHs and Hg occurred in the lowland areas of Nepal, and upslope transport to the high-altitude regions happened for both pollutants. During the upslope transport, forest filter effect and snow scavenging may be the important factors that enhance the deposition of PAHs, contributing to the negative pattern between concentrations of PAHs and altitudes. On the contrary, more Hg accumulated in the high Himalayas, relating to the enhanced deposition in the high altitude caused by the higher input from upper atmosphere.
Subject Area自然地理学
WOS IDWOS:000379553500023
Language英语
Indexed BySCI
KeywordPersistent Organic Pollutants Polybrominated Diphenyl Ethers Long-range Transport Tibetan Plateau Spatial-distribution Atmospheric Transport Polychlorinated-biphenyls Surface Soil Pine Needles Pahs
Cooperation Status国际
Department环境
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7666
Collection图书馆
Corresponding AuthorWang, XP
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.Kathmandu Univ, Sch Sci, Dhulikhel, Nepal
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Pokhrel, B ,Gong, P ,Wang, XP ,et al. Sources and environmental processes of polycyclic aromatic hydrocarbons and mercury along a southern slope of the Central Himalayas, Nepal[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(14):13843-13852.
APA Pokhrel, B .,Gong, P .,Wang, XP .,Gao, SP .,Wang, CF .,...&Wang, XP.(2016).Sources and environmental processes of polycyclic aromatic hydrocarbons and mercury along a southern slope of the Central Himalayas, Nepal.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(14),13843-13852.
MLA Pokhrel, B ,et al."Sources and environmental processes of polycyclic aromatic hydrocarbons and mercury along a southern slope of the Central Himalayas, Nepal".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.14(2016):13843-13852.
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