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| Ecological Risk Assessment of Soil Heavy Metals in Riparian Zone of Kerulen River |
| Received:May 06, 2015 |
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| KeyWord:heavy metal;riparian zone;Kerulen River;risk assessment;index of geoaccumulation;potential ecological risk index |
| Author Name | Affiliation | E-mail | | YANG Pei-feng | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | LI Wei-ping | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | sjlwp@163.com | | YU Ling-hong | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | CHEN A-hui | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | YANG Wen-huan | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | HAN Pei-jiang | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | REN Juan-hui | School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, China | | | JIAO Li-yan | Hui Ze water(qingzhou) Co., LTD, Qingzhou 262500, China | |
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| Abstract: |
| The ecological risk of soil heavy metals(As、Cd、Cr、Cu、Ni、Pb and Zn) along the riparian zone of Kerulen River was assessed by using the index of geoaccumulation and the potential ecological risk index proposed by Hakanson. Results indicated that the average concentrations of seven heavy metals including As、Cd、Cr、Cu、Ni、Pb and Zn were 117.71、266.7、0.64、2.07、2.12、5.38 and 55.95 times of the background values, with an order of Cd >As >Zn >Pb >Ni >Cu >Cr, indicating high accumulation of As, Cd, and Zn in the soils. The index of geoaccumulation was Cd >As> Zn> Pb> Cu> Ni> Cr, and the potential ecological risk index was Cd >As >Zn >Pb >Ni >Cu >Cr. The combination of the comprehensive pollution coefficient and the potential ecological risk coefficient showed that the studies area was at a higher pollution risk level, with the most pollution at Keerlun Su. Both As and Cd were the priority pollutants in the studies area. |
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