Status Survey and Evaluation of Heavy Metal in Bazhong City

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Shi, Lei^1,2,3,4 ; Liu, Jinbao^1,2,3,4

Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co. Ltd., Xi'an

710075, China^1

Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Xi'an

710075, China^2

Shanxi Provincial Land Engineering Construction Group Co. Ltd, Xi'an

710075, China^3

Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xi'an

710075, China^4

关键词: Background value;    Comprehensive evaluation;    Hilly areas;    Pollution index;    Potential ecological risk;    Sichuan;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/3/032140/pdf
DOI  :  10.1088/1755-1315/170/3/032140

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Based on the content of soil Cd, Pb and Zn, this paper conducted a comprehensive evaluation on the contamination status of heavy metal in Ba-zhong using Nemerow index and potential ecological risk index, meaning to provide scientific theoretical basis for the future prevention and treatment. The results showed that the average content of Zn was slightly higher than the background value of hilly area in Sichuan while the other two was under the standard line. However, differences do exist among various sampling places. The contents of Cd could come to 5.7 times than background value in some places at most. Nemerow index showed that the heavy meyal pollution index of the soils of Ba-zhong was 1.0951 and closed to the clean state. Basically, Ba-zhong was at a low level of risk according to the potential ecological risk index.