| 韩国土壤中二恶英浓度的时间变化趋势和污染源识别 |
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| 引用本文： | 金光洙,全红梅.韩国土壤中二恶英浓度的时间变化趋势和污染源识别[J].延边大学理工学报,2011(2):160-164. |
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| 作者姓名： | 金光洙 全红梅 |
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| 作者单位： | [1]韩国国立环境科学院环境健康部化学物质研究科,韩国仁川404708 [2]延边大学理学院化学系,吉林延吉133002 |
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| 摘 要： | 综述了近十年来韩国土壤中二恶英浓度随时间的变化趋势,并分析了不同土壤中潜在的二恶英排放源.研究显示：采样地点和时间不同,土壤中二恶英的浓度不同;但是1999—2009年,土壤中二恶英的浓度未呈现明显的减少趋势;由于二恶英其半衰期较长（17-274年）在土壤中分解缓慢,通过对土壤和大气中17种二恶英异构体的主成分分析表明,工业区土壤和农村地区大气中的二恶英主要来源于城市工业源,而农业区土壤中的二恶英主要来源于农业用化学物质等.
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| 关 键 词： | 土壤 二恶英 时间趋势 异构体组成 污染源 |
Temporal Trend and Source Implication of Soil PCDD/Fs in South Korea |
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| JIN Guang-zhu,QUAN Hong-mei.Temporal Trend and Source Implication of Soil PCDD/Fs in South Korea[J].Journal of Yanbian University (Natural Science),2011(2):160-164. |
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| Authors: | JIN Guang-zhu QUAN Hong-mei |
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| Affiliation: | 1.Chemical Research Division,Department of Environmental Health Risk Research,National Institute of Environmental Research,Environmental Research Complex,Incheon 404-708,Korea;2.Department of Chemistry,College of Sciences,Yanbian University,Yanji 133002,China) |
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| Abstract: | This study set out to review temporal trend of soil polychlorinated dibenzo-p-dioxins and dibenzofuran（PCDD/F） levels for ten years and identified potential PCDD/F emission sources for different type soils in South Korea.Soil samples showed high variations between the different sampling sites and periods.However,compared with air samples,no significant decline trend of PCDD/F levels in Korea surface soil was observed during 1999—2009.Soil act as a reservoir for persistent organic pollutants（POPs） and the degradation half life time（17—274 years） of PCDD/Fs in soil is long,these suggesting gradual decline of the PCDD/F levels in soil.Principal component analysis of 17 PCDD/F congeners reveal that PCDD/Fs in the industrial soil and rural air were mainly influenced by urban industrial sources,while those of the agricultural soil were influenced other sources such as agricultural chemicals. |
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| Keywords: | soil PCDD/Fs temporal trend congener profile source implication |
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