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Temporal variations of organochlorine pesticides in precipitation in Beijing, China
Yang GS(杨国胜); 马玲玲(多); Xu DD(徐殿斗); Yang, GS; Ma, LL; Xu, DD; Liu, LY; Jia, HL; Chen, Y; Zhang, YB; Chai, ZF;; Chen Y(陈扬); Chai ZF(柴之芳)
2012
发表期刊ATMOSPHERIC ENVIRONMENT
卷号61页码:614-619
摘要Temporal variations of organochlorine pesticides (OCPs) were determined in precipitation and monthly depositional fluxes were calculated in Beijing from February 2009 to March 2011. Compounds which were detected most often included alpha-HCH and beta-HCH, and the volume-weighted mean (VWM) concentration of hexachlorocyclohexanes (HCHs) was 33.0 ng L-1, accounting for 72.3% of the Sigma OCPs in precipitation. The total concentrations of OCPs ranged from 3.73 to 152 ng L-1 (mean: 29.7 +/- 3.5 ng L-1) for dissolved phase and from 1.61 to 114 ng L-1 (mean: 15.9 +/- 2.0 ng L-1) for particulate phase, respectively. OCPs in dissolved phase dominated sampled concentrations in precipitation (HCHs: 71.8%, Chlordane: 77.7%, dichlorodiphenyltrichloroethanes-DDTs: 50.1%) with an exception of hexachlorobenzene-HCB (26.3%). Furthermore, the distribution coefficient, K-pd, was generally large in low temperature, especially in spring. The abundance of Sigma OCPs in the precipitation fluctuated monthly, with high value in late winter and spring. The past farmland near the sampling site was under construction during sampling, which may be an important local re-emission source in this study. The elevated wet deposition flux of 11 selected OCPs was 14.9 mu g m(-2) yr(-1) in Beijing. (C) 2012 Elsevier Ltd. All rights reserved.
关键词Organochlorine pesticides Precipitation Deposition flux Beijing
学科领域Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
DOI10.1016/j.atmosenv.2012.08.026
收录类别SCI
WOS记录号WOS:000311188000066
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224024
专题院士
多学科研究中心
推荐引用方式
GB/T 7714
Yang GS,Ma LL,Xu DD,et al. Temporal variations of organochlorine pesticides in precipitation in Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2012,61:614-619.
APA 杨国胜.,马玲玲.,徐殿斗.,Yang, GS.,Ma, LL.,...&柴之芳.(2012).Temporal variations of organochlorine pesticides in precipitation in Beijing, China.ATMOSPHERIC ENVIRONMENT,61,614-619.
MLA 杨国胜,et al."Temporal variations of organochlorine pesticides in precipitation in Beijing, China".ATMOSPHERIC ENVIRONMENT 61(2012):614-619.
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