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引用本文:笪春年,王儒威,夏潇潇,刘盛萍,吴克,金杰.巢湖表层沉积物中多溴联苯醚的分布和污染源解析.湖泊科学,2018,30(1):150-156. DOI:10.18307/2018.0115
DA Chunnian,WANG Ruwei,XIA Xiaoxiao,LIU Shengping,WU Ke,JIN Jie.Distribution and sources of polybrominated diphenyl ethers in surface sediments of Lake Chaohu. J. Lake Sci.2018,30(1):150-156. DOI:10.18307/2018.0115
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巢湖表层沉积物中多溴联苯醚的分布和污染源解析
笪春年1,2, 王儒威3, 夏潇潇1, 刘盛萍1, 吴克1,2, 金杰1
1.合肥学院生物与环境工程系, 合肥 230022;2.安徽省环境污染防治与生态修复协同创新中心, 合肥 230022;3.中国科学技术大学地球与空间科学学院, 中国科学院壳幔物质与环境重点实验室, 合肥 230026
摘要:
在巢湖不同区域采集了16个表层沉积物样品,利用气相色谱质谱仪测定沉积物中低溴代多溴联苯醚(LPBDEs)和BDE209的含量,并对其残留、组成、空间分布和污染来源进行分析.结果表明,巢湖沉积物中共计检测到9种多溴联苯醚(PBDEs)化合物.∑LPBDEs的含量为0.001~2.75 ng/g,平均值为1.15 ng/g,平均检测率为44.83%;BDE209的含量为1.16~5.49 ng/g,平均值为2.83 ng/g,检测率为100%.与国内其他区域相比,巢湖沉积物中PBDEs含量总体处于中等水平.巢湖沉积物中各类LPBDEs和BDE209同系物含量为:西半湖 > 东半湖 > 湖心.巢湖沉积物中PBDEs以BDE209为主要成分,不同采样点PBDEs同系物的组成不同.相关性分析表明BDE209与LPBDEs在环境中的迁移存在相关性.
关键词:  巢湖  多溴联苯醚  内源污染  源解析  浅水湖泊
DOI:10.18307/2018.0115
分类号:
基金项目:安徽省自然科学基金项目(1608085MD78)、国家海洋局近岸域生态环境重点实验室资助项目(201802)、安徽省教育厅重点基金项目(KJ2015A201,KJ2015A183,KJ2017A546)和2016年高校优秀青年人才支持计划重点项目(GXYQZD2016274)联合资助.
Distribution and sources of polybrominated diphenyl ethers in surface sediments of Lake Chaohu
DA Chunnian1,2, WANG Ruwei3, XIA Xiaoxiao1, LIU Shengping1, WU Ke1,2, JIN Jie1
1.Department of Biology & Environment Engineering, Hefei University, Hefei 230022, P. R. China;2.Cooperative Innovation Center of Environmental Pollution Prevention and Ecological Rehabilitation in Anhui Province, Hefei 230022, P. R. China;3.CAS Key Laboratory of Crust-Material and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, P. R. China
Abstract:
16 surface sediments were collected from Lake Chaohu. Low brominated polybrominated diphenyl ethers (LPBDEs) and BDE209 were measured by gas chromatography/mass spectrometry (GC/MS). The distributions, composition and sources of PBDEs were investigated. Results show that 9 PBDEs are detected. ∑LPBDEs are in the range of 0.001 to 2.75 ng/g and 1.16 to 5.49 ng/g, with the average of 1.15 and 2.83 ng/g, respectively. Compared with the other estuarine and coastal regions in China, PBDEs contents in Lake Chaohu are in the middle level. The spatial distribution of LPBDEs and BDE209 contents follow the sequence of western half-lake > eastern half-lake > lake-central. BDE209 is the main component of PBDEs in the sediments of Lake Chaohu. In addition, the compositions of PBDEs homologues are different at different sampling sites. PBDEs are mainly derived from decabromodiphenyl ether. Correlation analysis show that there is a migration correlation between BDE209 and LPBDEs in the environment.
Key words:  Lake Chaohu  polybrominated diphenyl ethers  internal source pollution  source analysis  shallow lakes
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