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

页码：473 / 478

页数：6

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