人民黄河Issue(10):81-85,5.DOI:10.3969/j.issn.1000-1379.2015.10.021
淮河上游沉积物中重金属分布特征及污染评价
Distribution and Pollution Assessment of Heavy Metals in Sediments from Upper Reaches of Huaihe River
摘要
Abstract
In order to understand the contamination level and ecological risk of heavy metals in surface sediments from the upper reaches of Huaihe River,Cu,Cr,Zn,Cd and Pb in 16 sediment samples were measured by inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometer (ICP-OES ). Compared with the background value of soil from Henan Province,Cd was enriched to some extent and followed by Pb. The potential source of heavy metals in sediments from the upper reaches of Huaihe River was identified by correlation analysis and principal component analysis. The results show that Zn,Cu and Cr mainly originate from natural weathering and erosion process;Cd mainly originates from human activities including industry,traffic and usage of fertilizer;both processes have influence on the content of Pb. The geo-accumulation index (Igeo )and the Hakanson potential ecological risk index indicate that Cd pollution is the most serious among all heavy metals in sediments from the upper reaches of Huaihe River.关键词
重金属/沉积物/生态风险/淮河上游/分布特征Key words
heavy metals/sediments/ecological risk/upper reaches of Huaihe River/distribution characteristics分类
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冯精兰,栗笑迎,刘群,刘梦琳,孙剑辉..淮河上游沉积物中重金属分布特征及污染评价[J].人民黄河,2015,(10):81-85,5.基金项目
国家自然科学基金资助项目(41103071,41373132);中国博士后科学基金资助项目(2013T60702,2012M511580);河南省基础与前沿技术研究计划项目(122300410270);河南省科技创新人才计划项目(134200510014);河南省高等学校青年骨干教师资助计划项目(2013GGJS-056)。 ()