Pollution evaluation of heavy metals in soil near smelting area by index of geoaccumulation (Igeo)

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Huang, S.H.^1 ; Yang, Y.^2 ; Yuan, C.Y.^1 ; Li, Q.^1 ; Ouyang, K.^1 ; Wang, B.^1 ; Wang, Z.X.^3

Hunan Research Institute of Nonferrous Metals, Changsha

410083, China^1

College of Resources and Environment, Huazhong Agricultural University, Wuhan

430070, China^2

South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou

510655, China^3

关键词: Atomic fluorescence spectrometry;    Average concentration;    Contamination degree;    Heavy metal pollution;    Heavy metals in soil;    Index of Geo accumulations;    Pollution evaluation;    Potential pollutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012095/pdf
DOI  :  10.1088/1742-6596/52/1/012095

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to investigate the heavy metal pollution conditions of soil of smelting area in Zijiang of Chenzhou, Hunan province, 42 samples were studied. The concentrations of heavy metals As, Pb, Cd, Zn and Cu in the soil were determined by using atomic absorption spectrometry(AAS) and atomic fluorescence spectrometry(AFS). Then the potential pollution risks of heavy metal in the soil were evaluated by method of geological acumination index (Igeo). The results indicated that the average concentrations of As, Pb, Cd, Zn and Cu were 187.79, 2074.52, 15.72, 2178.89, 39.69 mg/kg respectively. The geological evaluation of the cumulative index results showed that the contamination degree of 5 heavy metals follow the sequence of Cd> Zn >Pb > As >Cu. The results show that Cd reached extremely pollution degree, Zn reached strong pollution-extremely pollution levels, the pollution of Pb in the soil is classified as strong pollution degree, Cu and As of no pollution according to the results of Igeobased on the background value of heavy metals in the soil of Hunan Province.