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| 焦作矿区煤矸石山周围土壤和玉米作物重金属污染研究 | |
| 引用本文： | 李旭华,王心义,杨建,郭慧霞.焦作矿区煤矸石山周围土壤和玉米作物重金属污染研究[J].环境保护科学,2009,35(2):66-69. |
| 作者姓名： | 李旭华 王心义 杨建 郭慧霞 |
| 作者单位： | 1. 北京师范大学水科学研究院,北京,100875 2. 河南理工大学资源与环境工程学院,焦作,454003 3. 焦作市环境科学研究所,焦作,454000 |
| 基金项目： | 河南省农业科技成果转化项目 |
| 摘 要： | 以焦作演马矿区为例，研究煤矸石长期堆放对周围土壤和玉米作物造成的重金属污染。根据当地地形地貌在矸石堆周围呈放射状布设3条采样线，用HCl-HNO3-HF—HClO4全分解法和HNO3-HClO4湿法消解土壤和玉米样品，检测土壤和玉米（叶、茎和籽）中主要有害重金属元素（Pb、Cu、Cr、Zn）。研究表明：土壤和玉米中Pb和Zn含量超标，且距离矸石堆由近及远土壤和玉米作物中重金属含量呈下降趋势，重金属在玉米作物不同部位的富集能力表现为叶中最高，茎次之，籽最低。 |
| 关 键 词： | 煤矸石堆 土壤 作物 重金属 污染 |
Review on Heavy Metal Pollution to Soil and Corn near Coal Waste Rock Dump in Jiaozuo Diggings |
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| Li Xu-hua et al.Review on Heavy Metal Pollution to Soil and Corn near Coal Waste Rock Dump in Jiaozuo Diggings[J].Environmental Protection Science,2009,35(2):66-69. | |
| Authors: | Li Xu-hua |
| Abstract: | Based on coal waste rock dump in Yanma Mine of Jiaozuo,this paper researched heavy metals′ pollution to soil and corn around the coal waste rock dump.According to the local landform,three sampling lines were disposed around the coal waste rock dump,the samples were digested with HCl-HNO3-HF-HClO3 and HNO3-HClO4digesting method,and heavy metals in soil and corn(Pb,Cu,Cr,Zn) were measured.The results showed that the contents of Pb and Zn in both soil and corn exceed standards,the pollutants in soil and corn decrease with the distance of coal waste rock dump increase.Corn enriching heavy metals had a rule that the content of pollutant was highest in leaves,moderate in stems,and lowest in seeds. |
| Keywords: | Coal Waste Rock Soil Crop Heavy Metal Pollution |
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