Distribution and Speciation Analysis of Cd Element in Qingdao Surface Soils

摘要：

In this paper, the content and chemical speciation of a heavy metal element, Cd, were studied from 63 urban soil samples extracted from five different functional areas, Industrial Area, Commercial Area, Scenic Area, Agricultural Area, and Residential Area, of Qingdao. The analysis results indicated the value of 1.289 mg/kg. The contamination level ranked as Industrial Area>Residential Area>Scenic Area>Commercial Area>Agricultural Area. The chemical speciation of Cd varied among the soils from the five functional areas. The distribution trend of the chemical speciation of Cd was obtained as residual fraction>organic form>Fe-Mn oxide>exchangeable form>carbonate form. The sequence of the Cd activation in the areas followed as Scenic Area>Industrial Area>Residual Area>Commercial Area>Agricultural Area. The overall Cd activation level in the soils of Qingdao was relatively high, creating potential hazards to the environment.

作者: QIAN Yi ZHANG Wei CHU Yan-yang

作者单位: School of Environment and Safety Engineering Qingdao University of Science and Technology Qingdao, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）