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DOI | 10.1016/j.atmosenv.2016.08.021 |
Atmospheric particulate mercury in Lhasa city, Tibetan Plateau | |
Huang, Jie; Kang, Shichang; Guo, Junming; Zhang, Qianggong; Cong, Zhiyuan![]() | |
通讯作者 | Kang, SC (通讯作者) |
发表日期 | 2016 |
ISSN | 1352-2310 |
EISSN | 1873-2844 |
起始页码 | 433 |
结束页码 | 441 |
卷号 | 142 |
英文摘要 | In an effort to understand the biogeochemical cycling and seasonal characteristics of atmospheric Hg, a total of 80 daily sampled total suspended particulates were collected at Lhasa, the largest city of Tibet, from April 2013 to August 2014 for particulate-bound Hg (Hgp) analysis. Daily concentrations of atmospheric Hgp ranged from 61.2 to 831 pg m(-3) with an average of 224 pg m(-3), which were unexpectedly comparable to those measured in most of the Chinese metropolises. Both the daily/monthly average Hgp concentrations were slightly but not significantly higher during the non-monsoon season than during the monsoon season. Together with the fact that there was lack of significant relationship between Hgp concentration and most meteorological parameters, no significant and distinct pattern for the seasonal characteristics of atmospheric Hgp could be mainly attributed to the almost equal emission strength of two principal anthropogenic Hg sources (i.e., industrial emission sources during the non-monsoon season, and vehicular traffic and religious sources during the monsoon season). Moreover, the Hgp dry deposition rate was estimated to be 35.3 14 mu g m(-2) yr(-1) by using a theoretical model, which was significantly higher than those Hg wet fluxes. The elevated deposition rate implied that dry deposition may play an important role in the biogeochemical Hg cycling over the Tibetan Plateau. (C) 2016 Elsevier Ltd. All rights reserved. |
关键词 | REACTIVE GASEOUS MERCURYTOKYO METROPOLITAN-AREADRY-DEPOSITIONAMBIENT AIRSEASONAL-VARIATIONSWET DEPOSITIONTRACE-ELEMENTSORGANOCHLORINE PESTICIDESMT. NYAINQENTANGLHAMINAMATA CONVENTION |
英文关键词 | Mercury; Atmospheric particulate; Lhasa; Tibetan Plateau; China |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS记录号 | WOS:000383293100044 |
来源期刊 | ATMOSPHERIC ENVIRONMENT
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来源机构 | 中国科学院青藏高原研究所 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/258800 |
推荐引用方式 GB/T 7714 | Huang, Jie,Kang, Shichang,Guo, Junming,et al. Atmospheric particulate mercury in Lhasa city, Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,142. |
APA | Huang, Jie.,Kang, Shichang.,Guo, Junming.,Zhang, Qianggong.,Cong, Zhiyuan.,...&Tripathee, Lekhendra.(2016).Atmospheric particulate mercury in Lhasa city, Tibetan Plateau.ATMOSPHERIC ENVIRONMENT,142. |
MLA | Huang, Jie,et al."Atmospheric particulate mercury in Lhasa city, Tibetan Plateau".ATMOSPHERIC ENVIRONMENT 142(2016). |
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