农业环境科学学报2011，Vol.30Issue(5)：965-972,8.
胶州湾东岸表层沉积物中多氯联苯的分布特征及风险评价
The Distribution and Risk Assessment of Polychlorinated biphenyl in Surface Sediments in Estuaries of Jiaozhou Bay, China
摘要
Abstract
Surface sediment samples at 12 sites of the eastern Jiaozhou Bay were collected in spring、summer、autumn、winter of 2009-2010.The U.S.EPA analytical methods were employed to examine polychlorinated biphenyls( IPCBs ), and the concentrations of PCBs were determined by GC/MS; The pollution level, distribution characteristics and pollution sources of the sediments were studied in this paper, so did the potential risk.The results indicated that the annual average content of PCBs was relatively low, ranged from 10.39 ng ·g-1 to 22.26 ng ·g-1,while the concentration was in high range which was varied from 1.84 ng· g-1 to105.22 ng· g-1.The concentration of PCBs was obviously different among seasons, which could be put into an order as follows:summer＞autumn＞winter＞spring.The distribution of PCBs concentrations in the study areas showed an increasing trend from the south to the north, and the concentration was in the order of Licun River＞Haibo River＞ Shilaoren Outdoor Bathing Place.The evaluation results of ecological risk assessment, effect concentration method and toxicity showed that,the total potential risk of surface sediments was not high at Jinzhou Bay, it could not cause considerable impacts on the local environment,however, Licun River should be given more attention for its medium higher level.关键词
胶州湾/多氯联苯/表层沉积物/年度分布/风险评价Key words
Jiaozhou Bay/ polychlorinated biphenyls/ surface sediment/ seasonal variation/ risk assessment分类
资源环境引用本文复制引用
郭军辉,殷月芬,郑立,余卫娟,赵恒强,杨东方..胶州湾东岸表层沉积物中多氯联苯的分布特征及风险评价[J].农业环境科学学报,2011,30(5):965-972,8.基金项目
国家自然科学基金项目(40976104) （40976104）
科技基础性工作专项项目(2008FY230600) （2008FY230600）
海洋公益性行业科研专项(200705011) （200705011）
