Heavy metals contamination characteristics in soil of different mining activity zones

来源期刊：中国有色金属学报(英文版)2008年第1期

论文作者：廖国礼 廖大学 李全明

文章页码：207 - 211

Key words：mining activity; heavy metals; contamination; soil pollution; metal form

Abstract: Depending upon the polluted features of various mining activities in a typical nonferrous metal mine, the contaminated soil area was divided into four zones which were polluted by tailings, mine drainage, dust deposition in wind and spreading minerals during vehicle transportation, respectively. In each zone, soil samples were collected. Total 28 soil samples were dug and analyzed by ICP-AES and other relevant methods. The results indicate that the average contents of Zn, Pb, Cd, Cu and As in soils are 508.6, 384.8, 7.53, 356 and 44.6 mg/kg, respectively. But the contents of heavy metals in different zone have distinct differences. The proportion of oxidizing association with organic substance is small. Difference of the association of heavy metals is small in different polluted zones.

基金信息：the Natural Science Foundation of China
the National Key Technology R&D Program of China