期刊论文

中文

环境科学

0250-3301

2014

35

10

3731-3739

10.13227/j.hjkx.2014.10.013

863;2012AA06A304:国家高技术研究发展计划（863计划） 201109017:环保公益性行业科研专项

本校为第一机构

在流经某废旧电器拆解区域的河段中采集沉积物样品,研究了该区域河流中多溴联苯醚(PBDEs)的污染特征和生态风险. 结果表明,在所有沉积物样品中PBDEs含量在101~20400 ng·g~(-1)之间,平均浓度为3700 ng·g~(-1),其中主要单体为BDE209,在23个样品中的平均比例达到94%以上; 在河流中分布呈现出上游和下游低,中游高,而下游平均浓度比上游高的趋势,在拆解园区附近浓度达到最高; 与其它地区相比,该地区PBDEs污染相对较为严重; 废旧电器的拆解是该区域沉积物中PBDEs污染主要来源. 经测算,当地近40年的拆解活动中共向该河流中排放了多溴联苯醚0.39 t,其中BDE209为0.36 t; 采用危害商数法对沉积物中P...

Polybrominated diphenyl ethers ( PBDEs) were determined in sediments collected from a river which through an electrical equipment dismantling area. The results showed that concentrations of PBDEs ranged from 101 to 20 400 ng·g-1 with an average of 3 700 ng·g-1 , and BDE209 was the most dominant homologue accounted for more than 94% of all detected homologues. The concentration of PBDEs was higher in the middle of river than that in upstream and downstream and the average concentration in downstream was higher than the upstream, with a peak of...