| 黄石市罗桥地区土壤镉污染的环境地球化学特征 |
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| 引用本文： | 李伟,张建新,马振东.黄石市罗桥地区土壤镉污染的环境地球化学特征[J].地质与资源,2006,15(3):222-226. |
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| 作者姓名： | 李伟 张建新 马振东 |
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| 作者单位： | 1. 沈阳地质矿产研究所, 辽宁 沈阳 10033;2. 中国石化中原油田, 河南襥阳 457001;3. 中国地质大学 地球化学研究所, 湖北 武汉 430074 |
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| 摘 要： | 对黄石市罗桥地区土壤中镉元素污染的环境地球化学调查研究表明：1）罗桥地区土壤Cd的背景值为0.068×10-6. 2）不同性质的土壤中，Cd的全量及有效态含量也有差异.其含量大小依次为：排放污水水沟污泥 > 水稻土 > 岗地土. 3）距污染源不同距离、不同深度的土壤样品中Cd的污染程度也不同.Cd污染主要集中于土壤的表面，很少向下迁移.污水样品中的Cd含量也随着排污上游到下游因污水的净化能力增强而降低. 4）对于各污染土壤样品，土壤中各形态Cd含量关系依次为：残余态 > 交换态 > 铁锰氧化物结合态 > 水溶态 > 有机态.5）因污水排放及污水灌溉引起的水型污染是罗桥地区土壤Cd污染的直接来源.大冶有色金属冶炼厂废气排放也是罗桥地区土壤Cd污染的另一个原因.
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| 关 键 词： | 罗桥地区 土壤Cd污染 污染源 |
| 文章编号： | 1671-1947（2006）03-0222-05 |
| 收稿时间： | 2005-01-11 |
| 修稿时间： | 2005-04-12 |
ENVIRONMENTAL GEOCHEMISTRY OF THE CADMIUM CONTAMINATED SOIL IN LUOQIAO AREA, HUBEI PROVINCE |
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| LI Wei,ZHANG Jian-xin,MA Zhen-dong.ENVIRONMENTAL GEOCHEMISTRY OF THE CADMIUM CONTAMINATED SOIL IN LUOQIAO AREA, HUBEI PROVINCE[J].Geology and Resources,2006,15(3):222-226. |
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| Authors: | LI Wei ZHANG Jian-xin MA Zhen-dong |
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| Affiliation: | 1. Shenyang Institute of Geology and Mineral Resources, Shenyang 110033, China;2. Zhongyuan Oilfield, Petro China, Puyang 457001, Henan Province, China;3. Institute of Geochemistry, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | Research on the environmental geochemistry of the Cadmium contaminated soil in Luohu area of Hubei Province reveals that: 1) The background value of Cd in soil of the area is 0.068 ×10-6.2) The total contents and active state contents of Cd vary in different kinds of soils.3)The contamination degree of Cd changes with depth of soil and distance form the pollution source.4) The concentrations of Cd in contaminated soil are different with the occurring states of Cd.5)The direct source of the cadmium contamination in soils of Luoqiao area is the water pollution caused by swage discharge and irrigation.The discharge of waste gas from a nearby nonferrous metal smeltery is another cause for the Cd pollution of soil in the area. |
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| Keywords: | Luoqiao area Cd contamination of soil pollution source |
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