| TCLP法评价酸性矿山废水污染稻田土壤重金属的生态风险 |
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| 引用本文： | 许超,夏北成. TCLP法评价酸性矿山废水污染稻田土壤重金属的生态风险[J]. 生态环境, 2008, 17(6) |
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| 作者姓名： | 许超 夏北成 |
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| 作者单位： | 1. 华南农业大学资源与环境学院,广东,广州,510642;中山大学环境科学与工程学院,广东,广州,510275
2. 中山大学环境科学与工程学院,广东,广州,510275 |
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| 基金项目： | 广东省自然科学基金团队项目 ， 中山大学985工程环境污染控制与修复技术创新平台项目 |
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| 摘 要： | 采用美国最新的法定重金属污染评价方法TCLP(Toxicity Characteristic Leaching Procedure,TCLP)法对粤北大宝山矿山下游受酸性矿山废水长期污染的稻田土壤的重金属(Cd、Zn、Pb、Cu)污染状况进行评价,以国际规定的TCLP法标准评价重金属生态环境风险.结果表明,TCLP试剂提取的土壤重金属Cd、Cu、Pb和Zn含量分别在0.02～0.58、1.42～38.07、0.16-31.01和1.84～75.29 mg·kg-1之间.酸性矿山废水污染稻田土壤不同程度地受到Cd、Cu、Pb、Zn的污染,其中以Pb、Zn污染最为严重,其次为Cu污染,Cd污染程度最轻.
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| 关 键 词： | 酸性矿山废水 重金属 生态环境 风险评价 |
Ecological risk assessment of heavy metals in paddy soils contaminated by acid mine drainage with toxicity characteristic leaching procedure |
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| Xu Chao,Xia Beicheng. Ecological risk assessment of heavy metals in paddy soils contaminated by acid mine drainage with toxicity characteristic leaching procedure[J]. Ecology and Environmnet, 2008, 17(6) |
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| Authors: | Xu Chao Xia Beicheng |
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| Affiliation: | Xu Chao1,2,Xia Beicheng2 1. College of Natural Resources , Environment,South China Agricultural University,Guangzhou 510642,China,2. School of Environmental Science , Engineering,Sun Yat-sen University,Guangzhou 510275 |
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| Abstract: | The concentrations of heavy metals (Cd, Cu, Pb and Zn) in paddy soils contaminated by acid mine drainage in the lower stream of Dabaoshan mine area, Guangdong Province, China, were determined. Their ecological risk was assessed by toxicity characteristic leaching procedure (TCLP), which developed by the United States Environmental Protection Agency. The TCLP method was currently recognized a international method for evaluating pollution of heavy metals in soils. Results showed that the levels of Cd, Cu, Pb ... |
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| Keywords: | TCLP |
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