Patterns and sources of PCDD/Fs and dioxin-like PCBs in surface sediments from the East River, China

被引：36
|
作者：
Ren, Man [1 ,2 ]
Peng, Ping'an [1 ]
Chen, Deyi [1 ]
Chen, Pei [1 ]
Li, Xiaoming [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
[2] Res Ctr Pearl River Delta Environm Pollut & Contr, Guangzhou 510640, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 170卷 / 01期
关键词：
PCDD/F; Dioxin-like PCB; East River; Sediment; Source; DIBENZO-P-DIOXINS; TOXIC EQUIVALENCY FACTORS; BALL CLAY; DELTA; PCDFS; AREA; POLLUTION; GUANGZHOU; KOREA; SEA;
D O I：
10.1016/j.jhazmat.2009.04.072
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The contamination status of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) was preliminarily investigated in surface sediments collected from the East River during April 2007. The contamination levels of PCDD/Fs and DL-PCBs ranged from 2.1 to 9.8 with mean concentration of 4.5 pg WHO98-TEQg(-1) and ranged from 0.042 to 0.45 with mean concentration of 0.19 pg WHO98-TEQg(-1), respectively. All sediments were characterized by the elevated levels of PCDDs, especially OCDD. Higher concentrations of PCDD/Fs were found in the sediments from Guangzhou and Dongguan. Source analysis revealed that PCDD/Fs in the sediments from Guangzhou were mainly from the secondary copper smelters and steel-making plants, and PCDD/Fs in the sediment from Dongguan were mainly from MSWIs. PCP and paper mills were unlikely to be the main sources. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：473 / 478
页数：6
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