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| 某污灌区重金属与两种持久性有机污染物(POPs)污染趋势评价 | |
| 引用本文： | 孙立波,郭观林,周启星,刘睿,张兰英.某污灌区重金属与两种持久性有机污染物(POPs)污染趋势评价[J].生态学杂志,2006,25(1):29-33. |
| 作者姓名： | 孙立波 郭观林 周启星 刘睿 张兰英 |
| 作者单位： | 1. 吉林大学环境与资源学院,长春,130026 2. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳,110016;中国科学院研究生院,北京,100039 3. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室,沈阳,110016 4. 吉林大学环境与资源学院,长春,130026;辽宁省分析测试研究中心,沈阳,110015 |
| 基金项目： | 国家高技术研究发展计划(863计划);国家重点基础研究发展计划(973计划) |
| 摘 要： | 对某污灌区的土壤剖面进行采样分析,利用不同的评价方法进行评价,结果表明,土壤中金属元素Cr、As、HG、Cd、Cu、Pb、Ni、Zn和持久性有机污染物BHC、DDT含量有上升趋势,80%以上的表层土壤样品污染物含量超过土壤底层,85%以上的土壤样品污染物含量明显超过当地土壤的自然背景值.通过污染物在土壤中的残留模型预测,两种有机污染物和元素Cr、As、Hg、Cd、Cu会在土壤中累积,持续的污水灌溉可能使在土壤中累积的这些污染物进入地下水或食物链,对环境健康造成危害. |
| 关 键 词： | 污水灌溉 重金属 持久性有机污染物 残留 评价 |
| 文章编号： | 1000-4890(2006)01-0029-05 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005-09-15 |
Assessment of heavy metals and POPs contamination in a sewage irrigation area |
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| SUN Libo,GUO Guanlin,ZHOU Qixing,LIU Rui,ZHANG Lanying.Assessment of heavy metals and POPs contamination in a sewage irrigation area[J].Chinese Journal of Ecology,2006,25(1):29-33. | |
| Authors: | SUN Libo GUO Guanlin ZHOU Qixing LIU Rui ZHANG Lanying |
| Institution: | 1 College of Environment and Resource, Jilin University, Changchun 130026, China; 2Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China ; 3 Graduate School of Chinese Academy of ,Sciences, Beijing 110039, China ; 4Liaoning Province Centre of Analysis and Testing Research, Shenyang 110015, China |
| Abstract: | Through soil profile sampling and with different evaluation methods, this paper assessed the contamination trend of heavy metals and POPs in a wastewater-irrigated area, The results showed that the concentrations of heavy metals Cr, As, Hg, Cd, Cu, Pb, Ni and Zn and of POPs, BHC and DDT in Soll had an increasing trend. 80 % or more topsoils had a higher contaminants concentration than subsoils, and the contaminants concentration in 85 % or more soil samples was surpassed their background value. The two POPs and heavy metals Cr, As, Hg, Cd and Cu could accumulate in soil, and continuous wastewater irrigation could make the accumulated contaminants migrate into groundwater and food chain, resulting in the hazard to environmental health. |
| Keywords: | wastewater irrigation heavy metals POPs residual assessment |
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