Risk Assessment and Prediction of Heavy Metal Pollution in Groundwater and River Sediment: A Case Study of a Typical Agricultural Irrigation Area in Northeast China

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ID: 88653
2015
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Abstract
The areas with typical municipal sewage discharge river and irrigation water function were selected as study sites in northeast China. The samples from groundwater and river sediment in this area were collected for the concentrations and forms of heavy metals (Cr(VI), Cd, As, and Pb) analysis. The risk assessment of heavy metal pollution was conducted based on single-factor pollution index (I) and Nemerow pollution index (NI). The results showed that only one groundwater sampling site reached a polluted level of heavy metals. There was a high potential ecological risk of Cd on the N21-2 sampling site in river sediment. The morphological analysis results of heavy metals in sediment showed that the release of heavy metals can be inferred as one of the main pollution sources of groundwater. In addition, the changes in the concentration and migration scope of As were predicted by using the Groundwater Modeling System (GMS). The predicted results showed that As will migrate downstream in the next decade, and the changing trend of As polluted areas was changed with As content districts because of some pump wells downstream to form groundwater depression cone, which made the solute transfer upstream.
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zhong2015riskinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhong, Shuang;Geng, Hui;Zhang, Fengjun;Liu, Zhaoying;Wang, Tianye;Song, Boyu;
Journal international journal of analytical chemistry
Year 2015
DOI
DOI not found
URL
http://dx.doi.org/10.1155/2015/921539
Keywords
Medicine Technology Science environmental sciences meteorology. climatology physical geography electronic computers. computer science geology geophysics. cosmic physics analytical chemistry river, lake, and water-supply engineering (general) analytical chemistry

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