Using a passive air sampler to monitor air-soil exchange of organochlorine pesticides in the pasture of the central Tibetan Plateau

doi:10.1016/j.scitotenv.2016.12.046

	Using a passive air sampler to monitor air-soil exchange of organochlorine pesticides in the pasture of the central Tibetan Plateau
	Wang, CF (Wang, Chuanfei)1,2; Wang, XP (Wang, Xiaoping)1,2; Ren, J (Ren, Jiao)1,3; Gong, P (Gong, Ping)1,2; Yao, TD (Yao, Tandong)1,2; Wang, XP
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017
卷号	580 期号:0 页码:958-965
关键词	PERSISTENT ORGANIC POLLUTANTS POLYCYCLIC AROMATIC-HYDROCARBONS POLYBROMINATED DIPHENYL ETHERS POLYCHLORINATED-BIPHENYLS SURFACE SOIL SPATIAL-DISTRIBUTION DEPURATION COMPOUNDS MOUNTAIN AIR GREAT-LAKES ATMOSPHERE
DOI	10.1016/j.scitotenv.2016.12.046
文献子类	Article
英文摘要	Air-soil exchange is a key process controlling the fate of persistent organic pollutants (POPs). However, the "sink effect" of soil for POPs in Tibetan pasture has not been dear. In NamCo, in the central Tibetan Plateau (TP) where the land is covered by grass, a modified passive air sampler (PAS) (thickness: 2 cm) was tested. Using the PAS, the atmospheric gaseous phase organochlorine pesticides (OCPs) at 11 heights from close-to-surface (2 cm) to 200 cm above ground, in summer and in winter, were measured. Concentrations of OCPs in summer were higher than those in winter. Both in summer and winter, atmospheric concentrations of OCPs decreased with decreasing height from 200 to 2 cm, indicating that OCPs were tiding deposited from air to soil. Air deposition of OCPs was possibly driven by wind speed. Furthermore, based on air OCPs at 0-3 cm near the surface, the interface exchange of OCPs between air and soil was studied by the fugacity method. The results showed that pastural soil in the TP was a "sink" of OCPs even in summer. The mean deposition fluxes of alpha-HCH, gamma-HCH and o,p'-DDT were 0.72, 0.24 and 0.54 pg/h/m(2), respectively, and it was estimated that the level of these pollutants in the soil will double every 24, 66 and 206 years, respectively. This study will contribute to the further understanding of global cycling of POPs in different land covers. (C) 2016 Elsevier B.V. All rights reserved.
学科主题	自然地理学
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000395353600094
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8331]
专题	青藏高原研究所_图书馆
通讯作者	Wang, XP
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.
推荐引用方式 GB/T 7714	Wang, CF ,Wang, XP ,Ren, J ,et al. Using a passive air sampler to monitor air-soil exchange of organochlorine pesticides in the pasture of the central Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,580(0):958-965.
APA	Wang, CF ,Wang, XP ,Ren, J ,Gong, P ,Yao, TD ,&Wang, XP.(2017).Using a passive air sampler to monitor air-soil exchange of organochlorine pesticides in the pasture of the central Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,580(0),958-965.
MLA	Wang, CF ,et al."Using a passive air sampler to monitor air-soil exchange of organochlorine pesticides in the pasture of the central Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 580.0(2017):958-965.