%0 Journal Article
%T Distribution characteristics of polycyclic aromatic hydrocarbons in the soil from the middle line source area of the south-to-north water diversion project<br>南水北调中线源头淹没区土壤中多环芳烃的赋存分布特征
%A TAI Chao
%A ZHANG Kunfeng
%A ZHOU Tianjian
%A ZHAO Tongqian
%A XIAO Chunyan
%A WU Li
%A <br>邰超
%A 张坤峰
%A 周天健
%A 赵同谦
%A 肖春艳
%A 武俐
%J 环境科学学报
%D 2012
%I 
%X The distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in the soil taken from the middle-line source area of the south-to-north water diversion project were studied. Eighteen soil samples were collected from 8 towns in Xichuan inundation zone of Danjiangkou reservoir. After Soxhlet extraction, PAHs (Nap was not detected) in the soil samples were determined using GC/MS. Ten of the 16 EPA priority PAHs were detected in the soil samples. The total PAHs residues were determined between 5.29 to 173.11 ng·g-1, with an average of 41.89 ng·g-1. The highly carcinogenic Baa, Chr, and Bbf accounted for 2.4% of the total residues. The PAHs contents in the soil of some sampling points were higher than that of uncontaminated soil (20~50 ng·g-1 on dry weight basis) suggested by the Netherland government, indicating that parts of the inundated soil had been contaminated by PAHs slightly. Based on the analysis of relative abundances of PAHs rings and the Molecular Markers, it was concluded that the principal source of PAHs in the studied area was combustion products of coal and other fossil fuels, while only a small portion was contributed by vehicle exhaust emissions and spillage of petroleum products. A certain degree of ecological risk of PAHs pollution existed in the study area, calling for further attentions.
%K polycyclic aromatic hydrocarbons
%K submerged area
%K soil
%K distribution characteristics
%K source apportionment<br>多环芳烃
%K 淹没区
%K 土壤
%K 分布特征
%K 源解析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=C65FC071C781EE3AFE8F775F371DCCB1&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=EE23223CE4332BD7&eid=0493D643315CD829&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=1&reference_num=57