Contamination and Congener Profiles of Polychlorinated Biphenyls from different agricultural top soils in a county of the Tailake Region, China

被引：17

作者：

Wang, Hui ^{[1
]}

An, Qiong ^{[1
]}

Dong, Yuan-Hua ^{[1
]}

Li, De-Chen ^{[1
]}

Velde, B. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China

[2] Ecole Normale Super, CNRS 4385, Geol Lab, F-75231 Paris, France

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2010年 / 176卷 / 1-3期

关键词：

PCBs; Agricultural soils; Different land use types; PERSISTENT ORGANIC POLLUTANTS; SURFACE SOILS; PCBS; LAKE; SEDIMENTS; SHANGHAI; JIANGSU; TAI;

D O I：

10.1016/j.jhazmat.2009.11.143

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Hundred topsoil (0-20 cm) samples under different land use types were collected from a county in the Tailake Region, China and analyzed for 18 polychlorinated biphenyls (PCBs) including five dioxin-like PCBs. The mean concentration of total PCBs (Sigma PCBs) for all sites was 1.071 mu g kg(-1) dry weight (dw) with a range of 0.016 mu g kg(-1) to 4.050 mu g kg(-1), and the concentration of total Dioxin-like PCBs (Sigma Dioxin-like PCBs) was 0.352 mu g kg(-1) about 33% of Sigma PCBs. The concentration of Sigma PCBs in paddy field (PF) soils with a mean of 1.637 mu g kg(-1) was higher than that in vegetable soil with a mean of 0.882 mu g kg(-1), but the concentration of Dioxin-like PCBs in PF soil was lower than that in commercial vegetable production soil. The concentration of heavier weighted molecular PCB congeners (>= penta-PCBs) in vegetable soil accounted for 98% of EPCBs, while that in Paddy field soil for 65% of Sigma PCBs. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1027 / 1031

页数：5

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