贡嘎山东坡土壤重金属质量比的初步分析及风险评价
文献类型：期刊论文
| 作者 | 张丹
|
| 刊名 | 安全与环境学报
 |
| 出版日期 | 2012-02 |
| 卷号 | 12期号:1页码:154-157 |
| 关键词 | 土壤学 重金属 评价 贡嘎山东坡 |
| 其他题名 | Preliminary analysis and risk evaluation of heavy metals in soil from eastern slope of Gongga Mountain |
| 通讯作者 | 张丹 |
| 中文摘要 | 对贡嘎山东坡土壤中Cd、Pb、Cr、Ni、Hg和As的质量比进行测定,用单因子污染指数法和内梅罗综合污染指数法对其进行风险评价。结果表明:研究区表层土壤中Hg、Pb和As质量比低于国家一级标准,属未污染等级,Cd、Cr和Ni质量比存在不同程度的超标现象,土壤被污染;Cd、Pb、Cr、Ni、Hg、As的单因子污染指数分别为1.88、0.87、1.15、1.06、0.45、0.26,对土壤的污染程度从大到小依次为Cd、Cr、Ni、Pb、Hg、As;内梅罗综合污染指数PN为0.92～4.89,都属于不安全级别,其中22.2%的土壤属尚清洁等级,66.7%的土壤属轻度污染,11.1%的土壤属严重污染。 |
| 英文摘要 | This paper is concerned about its research findings on the heavy-metal soil pollution through grey relational analysis in Baotou, Inner Mongolia, with its focus on eight soil heavy metals, including As, Cd, Cr, Cu, Hg, Ni, Pb and Zn. In order to make a general survey of the topsoil heavy metal pollution in Baotou, a notorious badly env-i ronmentally polluted urban area, we have done our investigation by measuring and testing the concentrations of 8 heavy metals in 221 farming layer ( 0- 20 cm) soil of field sampling . The process of our research has been conducted in the following steps: Firstly, we have introduced the principle of GRA ( which is suitable for evaluation of the heavy metal soi-l pollution due to its simple calculation and nice operationality. Secondly, our work has made it possible to apply the GRA model to the reliability analysis of environmental impact assessment of a limited reg ion. And, finally, we have arrived at the conclusion that the method of GRA is an optimal method for evaluating the heavy-metal soil pollution impact, for its evaluation results prove consistant with the actual situations. What we have done in this research includes a computational model of soil quality assessment proposed and developed by the given author based on the regularities of the National Environmental Quality Standards ( GB 15618) 1995, China) . Next, we have adopted the GIS analysis results to work out a thematic map of the city. s heavy-metal soil pollution situation. To analyze the spatial distribution patterns of the actual situation, we have taken the advantages of GIS and drawn up a detailed descriptive accounting map of the assessment in accordance with the actually evaluated results, which can be classified into four types: free from being polluted, slightly polluted, middle- level polluted and heavily polluted. Thus, our conclusion is that the pollution is mainly caused by human industrial activities, for it proves that the encroachment of heavy metals at the topsoil is very serious in industrial areas and spots near the two sides of the Kundulun River, with the rural area heavily polluted by some Hg point sources. Such results show that the GRA method can help to reduce the calculation load of the environmental quality to some extent. |
| 学科主题 | 微生物学 |
| 分类号 | X820.4 |
| 收录类别 | CSCD |
| 资助信息 | 国家自然科学基金项目(40871111) |
| 语种 | 中文 |
| CSCD记录号 | CSCD:4507656 |
| 公开日期 | 2012-12-13 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4519]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 推荐引用方式 GB/T 7714 | 张丹. 贡嘎山东坡土壤重金属质量比的初步分析及风险评价[J]. 安全与环境学报,2012,12(1):154-157. |
| APA | 张丹.(2012).贡嘎山东坡土壤重金属质量比的初步分析及风险评价.安全与环境学报,12(1),154-157. |
| MLA | 张丹."贡嘎山东坡土壤重金属质量比的初步分析及风险评价".安全与环境学报 12.1(2012):154-157. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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