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Author(s): |
Jing Ling, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education,China Three Gorges University, YiChang China, 443002
Shaohua Peng, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education,China Three Gorges University, YiChang China, 443002
Defu Liu, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education,China Three Gorges University, YiChang China, 443002
Ruiping Li, Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education,China Three Gorges University, YiChang China, 443002 |
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Abstract: |
The contents of heavy metals (Cu, Pb, Zn, Cr, Ni, As) in surface sediments from Xiangxi River in Three Gorges Reservoir Region were determined using X-ray fluorescence spectrometer, and the ecological risk of heavy metals was further evaluated based on the method of potential ecological risk index (RI). The results showed that most of the heavy metals had similar distribution levels, and the high values located in the middle-downstream of Xiangxi River. The results of potential ecological risk assessment indicated that Xiangxi river was slightly polluted by the investigated heavy metals on average, but the sampling points of XX00 and XX02 had higher potential ecological risks than others owing to their higher RIs.
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