| Characteristics and evaluation of heavy metal pollution in soil of farmland around Baoji Second Power Plant |
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| DOI：10.7606/j.issn.1000-7601.2012.02.37 |
| Key Words: power plant surface soil heavy metal pollution ecological risk evaluation |
| Author Name | Affiliation | | LI Xiaoxue | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | LU Xinwei | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | REN Chunhui | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | CHEN Cancan | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | WANG Lijun | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | LUO Dacheng | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China |
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| Abstract: |
| Thirty four soil samples were collected from farmland around Baoji Second Power Plant. The concentrations of Cu, Pb, Zn, Co, Cr, Mn, Ni and V in the soil samples were analyzed by using X-Ray fluorescence spectrometry. The contamination level and ecological risk of heavy metals in soil were assessed by Nemerow synthetical pollution index method and Hakanson potential ecological risk index method. The results show that the concentrations of Cu, Pb, Zn, Co, Cr, Mn, Ni and V in soil from farmland around Baoji second power plant were higher than the background values of corresponding elements of surface soil in Shaanxi Province. The concentrations of Cr and Mn had a similar space changing tendency and there was no significant difference in the space concentration distribution for other five heavy metals. The contamination level of Cu, Pb, Zn, Co, Cr, Mn, Ni and V and the heavy metals synthetical contamination level in soil were low. The potential ecological risk level of Cu, Pb, Zn, Co, Cr, Mn, Ni and V in soil was low, while the total potential ecological risk level of heavy metals in soil was middle. |
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