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 Publication | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH |
2016 | |
Volume | 23Issue:14Pages:13843-13852 |
DOI | 10.1007/s11356-016-6443-5 |
Abstract | Semi-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 ID | WOS:000379553500023 |
Language | 英语 |
Indexed By | SCI |
Keyword | Persistent 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 |
Subtype | Article |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/7666 |
Collection | 图书馆 |
Corresponding Author | Wang, XP |
Affiliation | 1.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. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
V.23(14) 13843-13852(1034KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment