| 钢铁厂及其周围环境中二噁英和多氯联苯土-气交换研究 |
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| 引用本文： | 李英明,张庆华,杨洪彪,江桂斌. 钢铁厂及其周围环境中二噁英和多氯联苯土-气交换研究[J]. 中国环境监测, 2010, 26(4): 1-3 |
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| 作者姓名： | 李英明 张庆华 杨洪彪 江桂斌 |
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| 作者单位： | 1. 中国科学院生态环境研究中心,环境化学与生态毒理学国家重点实验室,北京100085
2. 鞍山市环境监测中心站,辽宁鞍山,114004 |
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| 基金项目： | 环境保护部全国土壤现状调查及污染防治项目(2110402) |
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| 摘 要： | 利用逸度模型及其相关算法,研究了东北某钢铁厂及其周围居住区、背景对照区二噁英和多氯联苯污染物土－气迁移方向和交换通量。结果表明,二噁英主要由大气向土壤迁移,其土－气交换通量为每月618~5373mg/km2,多氯联苯污染物主要由土壤向大气迁移,交换通量为每月47~230mg/km2。基于实测污染物的浓度和逸度模型能较好地估算该地区二噁英 、多氯联苯等持久性有机污染物的土－气界面迁移规律。
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| 关 键 词： | 二噁英 多氯联苯 钢铁厂 土－气交换 逸度模型 |
| 收稿时间： | 2010-03-15 |
Estimation on the Soil-Air Exchange of PCDD/Fs and PCBs around an Iron and Steel Making Plant |
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| LI Ying-ming. Estimation on the Soil-Air Exchange of PCDD/Fs and PCBs around an Iron and Steel Making Plant[J]. Environmental Monitoring in China, 2010, 26(4): 1-3 |
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| Authors: | LI Ying-ming |
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| Affiliation: | State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences, Beijing 100085, China |
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| Abstract: | The soil-air exchange of PCDD/Fs and PCBs were investigated using fugacity based model from an iron and steel making plant,and the surrounding residential area and background areas,Northeastern China. The PCDD/Fs were found transferred from air to the soil,with an estimated exchange flux of 618~5373mg/km2/month. The PCBs were transferred from the soil to air,with an estimated exchange flux of 47~230mg/km2/month. The determined concentrations of chemicals and the fugacity based model can be combined together to well estimate the soil-air exchange of PCDD/Fs and PCBs in the local area. |
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| Keywords: | PCDD/Fs PCBs Iron and steel making plant Soil-air exchange Fugacity model |
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