Distribution and mobility of heavy metals in soil of sewage irrigation area in Pearl River Delta, China

摘要：

The research reveals the mobility and distribution of heavy metals (Cd, Cu, Zn, Mn, Ni, and Cr) in soil of sewage irrigation area in Pearl River Delta. Samples were collected from topsoil (0-10cm) and subsoil (3040cm), and the total concentration and available concentration of heavy metals were extracted by HNO3HF-HCIO4 and DTPA respectively. The mean total concentrations for all of the heavy metals in topsoil are higher than that in subsoil in study area. Cd has the best mobility in soil of study area due to soil has lower retention for Cd than for other metals, while Ni has the poorest mobility in soil of study area. The total concentrations of Zn, Cu and Cd decrease with the depth of soil profile, while the total concentrations of Cr and Ni have little change with the depth of soil profile, only the total concentration of Mn has a little decrease at first and then increased rapidly with the depth of soil profile.

关键词： Sewage irrigation Heavy metals concentration soil mobility

作者: Guanxing Huang Jichao Sun Ying Zhang Jingtao Liu Yuxi Zhang Jihong Jing Jincui Wang

作者单位: Institute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang, 050061, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 568-571

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）