Characteristics of heavy metal pollution in the soil around lead-zinc mining area
The environmental impact of heavy metal pollution from mining activities is of growing concern. Here we have carried out an environmental geochemical investigation to determine the concentrations of heavy metals (Cd, Pb, Zn, and Cu) in soils in and around lead-zinc mining and zinc smelting areas in Northeastern China, analyze the characteristics of heavy metal contamination and assess pollution level in the area. Cd, Pb, Zn, and Cu in soil were extracted by HCl-HNO3-HClO4 and their concentrations determined by atomic absorption spectrophotometers (AAS). The metal concentrations in soil were high, with a maximum of 12.39 mg/kg for Cd, 438.10 mg/kg for Pb, 603.55 mg/kg for Zn, and 91.41 mg/kg for Cu. Geo-accumulation index analysis indicated that the soil had suffered severe pollution of Cd and Pb and medium-level pollution of Cu and Zn. Thus, environmental deterioration from heavy metal pollution need more attentions in the future.
Xiuyan Zhou Zhe Zhao Zhang Juanxia Xiangxin Xue
Department of Environmental Science and Engineering Northeastern University at Qinhuangdao Qinhuangd Northeastern University Shenyang, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）