文档介绍：
中国主要河流生活排污沉积物与河口沉积
物中多溴联苯醚分布特征及转化研究#
袁国礼1,刘晨2*
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(1. 中国地质大学(北京)生物地质与环境地质国家重点实验室,地球科学与资源学院,
北京 100083;
2. 中国地质大学(北京)地球科学与资源学院,北京 100083)
摘要:多溴联苯醚(PBDEs)是一种添加型溴代阻燃剂,在全世界范围内广泛使用。因其具
有高亲脂性、生物累积性和高毒性且难于降解,越来越受到人们广泛关注。本文在全国范围
内,选取珠江、闽江、淮河以及松花江四大主要河流为研究区,采集主要生活排污口以及河
口附近沉积物样品,对其中的 PBDE 含量水平和在环境中的迁移转化进行研究。研究结果表
明,多种 PBDE 同系物包括在生活排污沉积物以及河口沉积物样品中均有不同程度检出。河
口地区沉积物样品中,∑PBDEs 和 BDE-209 含量分别为 -,和 -,且
其含量递变规律为:珠江>闽江>淮河>松花江。而各河流生活排污沉积物中∑PBDEs 和
BDE-209 含量普遍远高于河口地区沉积物, 含量变化范围为 - 和
-。其中最高值均出现在淮河样品中。此外,由于 PBDEs 在迁移转化的过程
中会发生降解,且沉积物处于水生环境中,因此对可能影响 PBDEs 降解因素的 pH 值进行了
分析。同时,PBDEs 降解过程中的一些组分特征和特殊比值的变化也进行了讨论。
关键词:环境地球化学;多溴联苯醚;生活排污沉积物;河口沉积物;迁移转化
中图分类号:P59
The study of PBDEs distribution characteristics and
transformation in living sewage sludge and estuarial
sediment from main river area of China
Yuan Guoli1, Liu Chen2
(1. State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences
and Resources,China University of Geosciences, Beijing 100083;
2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083)
Abstract: Polybrominated Diphenyl Ethers (PBDEs) is a series of persistent brominated
compounds which have been worldwide used as flame retardant embedded in textiles, plastics,
electronic products, and other materials. Nowadays more and more attention is paid to its pollution
to the environment since their high lipophicity, umulation and toxicity. In this study, living
sewage sludge and estuarine sediment samples were collected from Pearl River, Min River, Huai
River and Song Hua River of China. The results shows that the concentration of ∑PBDEs and
BDE-209 in estuarial sediment are - and -, and the levels are changed in the
order of Pearl River > Min River > Huai River > Song Hua River. However the contents of ∑
PBDEs and BDE-209 are - and - respectively which are almost
h