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《Journal of Hefei University of Technology(Natural Science)》 2007-03
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Study on pollutant characters of sediment in the estuary of Shiwuli River in the Chaohu Lake basin

LIU Lu,HONG Tian-qiu,PAN Guo-lin,ZHENG Wei(School of Resources and Environment,Hefei University of Technology,Hefei 230009,China)  
This research is based on the test results from 18 sampling spots in the estuary of Shiwuli River in the Chaohu Lake basin.Sixty-six sediment samples were collected from different layers of the river,and the total nitrogen,total phosphorus,organic matter and heavy metal in these samples were tested through X-ray diffraction and atomic absorption spectrophotometry.The correlative relations of the pollution factors were analyzed.It is found out that the heavy metals in these sediment samples in-clude mercury,chromium,lead,copper,and cadmium,and that their corresponding pollutant degree is in descending order,forming medium potential ecological risk in the seriously polluted layer.The ratio of total nitrogen to total phosphorus indicates the eutrophication of the lake and the organic matter o-riginates from the hydrophytes.
【Fund】: 国家科技部重大基础研究前期资助项目(2003ccc00400)
【CateGory Index】: X524
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