A congener-specific survey for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) contamination in Masan Bay, Korea

被引：23

作者：

Kannan, Narayanan ^{[1
]}

Hong, Sang Hee ^{[1
]}

Shim, Won Joon ^{[1
]}

Yim, Un Hyuk ^{[1
]}

机构：

[1] S Sea Inst, Korea Ocean Res & Dev Inst, Geojeshi 656830, South Korea

来源：

CHEMOSPHERE | 2007年 / 68卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

urban development; transport; sewage; source identification; temporal trend;

D O I：

10.1016/j.chemosphere.2007.04.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A congener-specific determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in 21 surface sediments from Masan Bay, Korea revealed that the most toxic 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) was detected in 76% of the samples and 2,3,7,8-tetrachlorodibenzofuran (2,3,7,8-TCDF) in 100% of the samples analyzed. The concentration range of Sigma PCDDs and Sigma PCDFs are: 230-6900; 120-16 700 pg g(-1) dry mass respectively. WHO Toxic Equivalents (WHO-TEQ) in Masan Bay sediment ranged from 0.53 to 99 ng TEQ kg(-1) d.m. for PCDDs; 4 to 1300 ng TEQ kg(-1) d.m. for PCDFs. In comparison with an earlier survey, the concentrations of dioxins and furans have more than doubled and the Sigma WHO-TEQ values have increased 15 times within a decade. Both point and non-point sources of pollution are suspected, especially, local sewage treatment plants are found to contribute. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1613 / 1622

页数：10

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