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南昌市周边农田土壤中多环芳烃的污染特征及来源分析
引用本文:樊孝俊,刘忠马,夏新,左燕君,龚娴.南昌市周边农田土壤中多环芳烃的污染特征及来源分析[J].中国环境监测,2009,25(6).
作者姓名:樊孝俊  刘忠马  夏新  左燕君  龚娴
作者单位:1. 南昌市环境监测站,江西,南昌,330002
2. 中国环境监测总站,北京,100012
摘    要:采集南昌市周边三个县的18个农田表层土壤样品,采用液固萃取-层析净化-高效液相色谱分析技术,研究了土壤中16种优控多环芳烃类物质的含量和组分特征,运用主成分因子荷载方法分析了其污染来源,并初步评价了其风险水平。结果表明,该区域内农田土壤33.3%轻度污染,最高污染样点PAHs含量为422.8ng/g,最低污染样点PAHs含量为75.2ng/g,平均含量为197.9ng/g,且远离城市的农田土壤残留水平明显低于靠近城市的农田土壤;PAHs的组分特征为以毒性水平较低的低环化合物为主;其污染来源主要是煤、天然气和汽油燃烧组成的混合源。

关 键 词:农田土壤  多环芳烃  污染特征  南昌市周边  

Analysis of Pollution Characteristics and Sources of PAHs in Farmland Soil Around Nanchang City
FAN Xiao-jun,et al.Analysis of Pollution Characteristics and Sources of PAHs in Farmland Soil Around Nanchang City[J].Environmental Monitoring in China,2009,25(6).
Authors:FAN Xiao-jun~  
Institution:1.Nanchang Envioromental Monitoring Station;Nanchang 330002;China
Abstract:Collecting farmland topsoil sample of three counties around Nanchang city,studying contens and characteristics of the component of 16 kinds of optimal control PAHs in soil using technologies of liquid-solid extraction,chromatography purification and HPLC,analysis their sources with principal constituent factor load method,and preliminarily assessing their levels of risks.The result shows that 33.3% of the farmland soil of this area has been polluted slightly,the content of the top polluted sampling point is...
Keywords:Farmland soil  PAHs  Pollution characteristics  Area around Nanchang city  
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