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| Pollution and Potential Ecological Risk Assessment of Heavy Metals in Farmland Soils in Jiaogang Lake Basin, China |
| Received:July 14, 2015 |
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| KeyWord:Tarmland soil;heavy metal;geo-accumulation index;potential ecological risk;Jiaogang Lake basin |
| Author Name | Affiliation | E-mail | | WEI Xu-hao | School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China | | | SUN Qing-ye | School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China | sunqingye@ahu.edu.cn | | CHENG Jian-hua | School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China | | | DOU Zhi-yong | School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China | | | WANG Chen | School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China | |
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| Abstract: |
| In this study, concentrations and pollution characteristics of As, Cd, Cr, Cu, Pb, and Zn in farmland soils from Jiangang Lake basin were investigated. The ecological risk of heavy metal pollution in the soils was assessed using the methods of geo-accumulation index and potential ecological risk index. Results indicated that the average concentrations of As, Cd, and Cr were higher than the local background values, showing their accumulation. However, the average concentrations of Cu, Pb, and Zn were still lower than the local background values. Geo-accumulation index showed that heavy metal pollution in these farmland soils studied was from no to moderate pollution, with Cd, As and Cr being major pollutants. The potential ecological risk of the studied farmland soils was at medium level, and the potential ecological hazard of heavy metals was in order of Cd >As >Cu >Pb >Cr >Zn. The concentrations of heavy metals were higher in soils from southwest and east areas than from central and north areas of Jiaogang Lake basin. |
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