岩矿测试2012，Vol.31Issue(6)：1000-1005,6.
滦河流域沉积物中重金属分布特征及风险评价
Distribution Characteristic and Potential Ecological Risk Assessment of Heavy Metals in Sediments of the Luanhe River
摘要
Abstract
River sediments are both the source and sink of heavy metal pollution, which has a significant effect on the water environment. In order to determine the pollution levels of heavy metals in the Luanhe River, heavy metal concentrations in sediments were detected by Inductively Coupled Plasma-Mass Spectrometry ( ICP-MS ). Additionally, the distribution characteristics and potential ecological risks were studied by potential ecological risk assessment. The results show that the average contents of Cr, Ni, Cu, Zn, Cd and Pb were 60.40, 26. 15, 48.07, 76.42, 0.30 and 25.55 mg/kg, respectively. Among the six elements, the contents of Cu and Cd were higher than background values of stream sediments in China. In the mainstream, heavy metal concentrations increased from upstream to downstream. The pyroxies of potential ecological risk assessment indicated that the pollution degrees of heavy metals were: Cd > Cu > Pb > Cr > Zn, and Cd was the predominant pollution element among them. In general, the Luanhe River was moderately contaminated by heavy metals. However, the pollution of the Da Heiting reservoirs and Baohe River ( Kuancheng) were at high risk level.关键词
滦河/沉积物/重金属/潜在生态危害指数/空间分布Key words
Luanhe River/ sediments/ heavy metals/ potential ecological risk index/ spatial distribution分类
资源环境引用本文复制引用
郝红,高博,王健康,周怀东,陆瑾,殷淑华,朱成..滦河流域沉积物中重金属分布特征及风险评价[J].岩矿测试,2012,31(6):1000-1005,6.基金项目
国家自然科学基金创新研究群体基金项目(51021066) （51021066）
国家重点基础研究发展计划(973计划)项目(2006CB403403) （973计划）
水利部公益性行业科研专项经费项目(200901055) （200901055）
