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| Pollution of Nutrients and Heavy Metals in Sediments from Yin Cun Gang River of Lake Taihu Basin, China |
| Received:March 07, 2015 |
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| KeyWord:Lake Taihu;influent river;heavy metals;nutrients;pollution |
| Author Name | Affiliation | | NIU Yong | Research Center of Lake Environment, Chinese Research Academy of Environmental Science, Beijing 100012, China
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China | | YU Hui | Research Center of Lake Environment, Chinese Research Academy of Environmental Science, Beijing 100012, China | | NIU Yuan | Research Center of Lake Environment, Chinese Research Academy of Environmental Science, Beijing 100012, China | | LIU Qian | Research Center of Lake Environment, Chinese Research Academy of Environmental Science, Beijing 100012, China | | PANG Yong | College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China | | XU Xiang-yang | College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China |
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| Abstract: |
| Yin Cun Gang river has the greatest average annual runoff among all influent rivers in Lake Taihu basin, China. Therefore, it is critical to investigate the levels of nutrients and heavy metals in its sediments. The concentrations of TN, TP, TOC, Cu, Zn, Pb, Ni, and Cr in fluvial deposits were analyzed in August 2012. The average concentrations of TN, TP and TOC in the sediments were 2.11 g·kg-1, 1.56 g·kg-1 and 27.75 g·kg-1, respectively. The TOC was significantly correlated with TN, suggesting that the sedimentation of TN was accompanied by the organic substances. C/N values indicated that the exogenous pollution of organic substances occurred in the sediments. Index of geo-accumulation of heavy metals showed that the sediments were heavily contaminated with Cu and moderately with Pb and Zn. |
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