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白银市土壤多环芳烃污染特征 被引量：2

Characterization of Polynuclear Aromatic Hydrocarbons(PAHs) Pollution in Soils from Bainyin City
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摘要 选取甘肃省白银市为研究区域,采集23个具有代表性的不同功能区表层土壤样品,分析土壤样品中美国环保署规定的16种优控多环芳烃(PAHs)的含量和组分特征,并采用同分异构体比率研究其污染来源。研究表明,该区土壤中PAHs含量为64.96～3 043.86ng/g,远超出土壤内源性PAHs含量,有52.2%、13.0%和21.7%的土壤样品分别达到PAHs的轻度、中度、重度污染水平。多环芳烃浓度在不同类型土壤中的含量由高到低依次为河流下游底泥>生活区>工业生产区>污灌区。白银市土壤样品中4环及4环以上高分子量的PAHs所占比例较大。源解析结果表明,该市土壤PAHs来源主要是木材、煤的燃烧和化石燃料的燃烧。 The characterizations of polynuclear aromatic hydrocarbons（PAHs） pollution in soils from Bainyin City were investigated.A total of 23 soil samples were collected from the sites representative of the region for the analysis of the contents of 16 PAHs listed in US EPA priority pollutant list.The results showed that the total concentrations of PAHs in soil samples were ranged from 64.96 to 3 043.86 ng/g.52.2%,13.0% and 21.7% soil samples were in slight,moderate and heavy level of PAHs pollution,respectively.The average degree of PAHs occurred in various soils followed the sequence： sediment samples urban area industrial area sewage irrigation area.The contents of PAHs with four and over four aromatic rings were predominant in the soil samples.Coal,wood and fossil fuels combustion were the dominant sources of PAHs in the study areas with the source apportionment.
作者 彭晓春 陈志良 董家华 任明忠 吴彦瑜 白中炎 杨兵
机构地区 环境保护部华南环境科学研究所
出处 《安徽农业科学》 CAS 北大核心 2011年第33期20441-20443,20468,共4页 Journal of Anhui Agricultural Sciences
基金 "十一五"国家科技支撑课题(2007BAC16B08) 环保公益性行业科研专项(201009063) 中央级公益性科研院所基本科研业务专项资金项目(20603021001-2)
关键词 多环芳烃 土壤 污染 特征 PAHs Soil Pollution Characterization
分类号 X131.3 [环境科学与工程—环境科学]
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参考文献16

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同被引文献34

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安徽农业科学
2011年 第33期

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