期刊
CHEMOSPHERE
卷 71, 期 2, 页码 242-247出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2007.09.043
关键词
wastewater treatment plants; PBDEs; persistent organic pollutants; environmental contaminants
Polybrominated diphenyl ether (PBDE) concentrations were measured in sewage Sludge samples collected from three wastewater treatment plants in Kuwait over a six month period. PBDEs were detected in all samples analyzed and there were significant differences between the three wastewater treatment plants. The mean (and range) of Sigma PBDEs concentrations measured are as follows: Jahra 52.5 ng g(-1) (5.7-169.5 ng g(-1)); Reqqa, 144 ng g(-1) (32-296 ng g(-1)); Umm Haylaman, 377 ng g(-1) (23-1599 ng g(-1)). The differences in concentrations of the sum of penta congeners were consistently different at the three treatment plants with values increasing in the order: Jahra < Umm Haylaman < Reqqa. BDE 209 was the dominant congener in all samples, contributing between 70% and 99% of the Sigma PBDEs, with lesser quantities of BDE 99 (6%), BDE 47 (3.3%), BDE 100 (1%) with BDEs 28, 153, 154, and 183 accounting for only 2% of the Sigma PBDEs measured in most samples. A seasonal trend in concentrations was observed, presumably related to temperature effects, with lower concentrations between September and November, followed by a spike in the December samples and then a gradual decrease in the January and February samples. (c) 2007 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据