• 研究报告 •

### 辽阳弓长岭铁矿区重金属污染评价

1. 1东北大学资源与土木工程学院， 沈阳 110819；2辽宁工程技术大学环境科学与工程学院， 辽宁阜新 123000；3中国科学院沈阳应用生态研究所， 沈阳 110016）
• 出版日期:2018-06-10 发布日期:2018-06-10

### Assessment of heavy metal pollution in  Gongchangling Iron Mine region, Liaoyang.

ZHANG Xiao-wei1,2*, WANG En-de1, AN Jing3

1. (1School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China; 2School of Environmental Science and Technology, Liaoning Technical University, Fuxin 123000, Liaoning, China; 3Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China).
• Online:2018-06-10 Published:2018-06-10

Abstract: In this study, geoaccumulation index, potential ecological risk index and enrichment factor were used to evaluate the heavy metal pollution of Liaoyang Gongchangling Iron Mine area. The mining area was divided into seven subareas around stope and tailing pond, and soil samples from which were collected. The concentrations of heavy metals, including Cd, Cu, Zn, Pb and Cr in all the samples were measured, based on which the pollution situation was evaluated. The results showed that the evaluation results using the three methods were consistent. The heavy metal pollution in the studied area was serious, mainly caused by Cd and Cu. Cd pollution reached a serious level, Cu was in moderate level, and Zn, Pb and Cr pollution was light. Moreover, the pollution of heavy metals was closely related to human mining activities. The pollution in stope and tailing pond was significantly worse than that in surrounding subareas. More attention should be focused on the pollution of Cd and Cu in the process of ecological restoration and soil reclamation. Our results provide a basis for ecological risk assessment and a scientific reference for the improvement of ecological environment.