Evaluation of dioxin contamination in sewage sludge discharges on coastal sediments from Catalonia, Spain

被引：27

作者：

Eljarrat, E ^{[1
]}

Caixach, J ^{[1
]}

Rivera, J ^{[1
]}

机构：

[1] CSIC, IIQAB, Ecotechnol Dept, Mas Spectrometry Lab, ES-08034 Barcelona, Spain

来源：

WATER RESEARCH | 2001年 / 35卷 / 11期

关键词：

dioxins; furans; sediment; sewage sludge; Spain;

D O I：

10.1016/S0043-1354(00)00566-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The Fate of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in sewage sludges after discharge into the sea was investigated, Sediment samples were analysed at a sewage sludge disposal site as well as in the surrounding areas. Moreover, eight sediment samples from two rivers in Catalonia and three sediment samples from Catalonian Coast were analysed to determine the background levels of contamination. Total international toxicity equivalent (I-TEQ) values for these sediments ranged from 0.42 to 8.01 pg/g. with a mean value of 4.15 pg/g and a median value of 3.69 pg/g. However, the I-TEQ values of sludge-treated areas were higher: 57.04 pg/g at the dumping site, and within a range of 13.42-47.76 pg/g near this site. Thus, European sediment quality objectives were exceeded. The higher concentrations coincided with changes in the ratio between PCDD and PCDF levels, suggesting the influence of the sewage sludge on coastal sediments. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2799 / 2803

页数：5

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