文档介绍：Polycyclic Aromatic Hydrocarbons (PAHs) in Soils
Sampled from an Oilfield: Analytical Method by GC-
MS, Distribution, Profile, Sources and Impacts
Xianyuan Du, Jianlin Liu, Jing Xin, Yu Li* Xingchun Li, Yanhong Lang
Energy and Environmental Research Center Research Institute of Safety and Environment Technology
North China Electric Power University China National Petroleum Corporation
Beijing, China Beijing, China
E-mail: ******@jlu. E-mail: lxingchun@
Abstract— The distribution, profile, sources, and impacts of contain significant amounts of PAHs, arising from chemical
polycyclic aromatic hydrocarbon (PAHs) in oilfield soils were conversion of natural product molecules, such as steroids, to
investigated. The concentrations and distribution of PAHs in soils aromatic hydrocarbons [12].
from five sites (named as S1, S2, S3, S4 and S5) showed different
levels of PAHs. The concentrations of total PAHs in the soils PAHs are well known for their carcinogenic, mutagenic and
ranged from 1340 to 82393 ng/g. The profiles of different number teratogenic properties [13]. PAHs are lipophilic, meaning they
of aromatic rings in each of soil samples followed the order: 5- mix more easily with oil than water [13]. The larger
rings+> 4-rings>3-rings>2-rings. The source analysis pounds are less water-soluble and less volatile (., less
that the PAH