土壤2016，Vol.48Issue(6)：1166-1171,6.DOI:10.13758/j.cnki.tr.2016.06.015
乌鲁木齐市周边地区土壤中多环芳烃的含量及来源
Contents and Sources of Polycyclic Aromatic Hydrocarbons in Soils Around Urumqi City
摘要
Abstract
Representative soil samples were collected from surrounding parts of Urumqi in different distances and different depths from Wulapo to Shuixigou, Soxhlet extraction method and chromatographic purification method were employed for 16 kinds of PAHs preparation prior to analysis with High Performance Liquid Chromatography (HPLC) method, and the comparative analysis, pollution assessment and source analysis were carried on. The results showed that the concentrations of the total PAHs (T-PAHs) range from 306.94 ng/g to 3 652.16 ng/g with the mean value of 998.23 ng/g, although the pollution situation belonged to the moderate pollution level but was very close to the serious pollution. The minimum detection limits for the 16 PAHs range from 0.20 ng/g to 0.80 ng/g. Bap concentrations in some sites exceeded the suggested standards. PAHs contamination degrees of soil were different in different depths, and the order followed as: top layer > middle layer > bottom layer. High molecular weight PAHs accounted for 84.1% and low molecular weight PAHs account for 15.9% of the total contents. These suggested that automobile emission is still the most important source of PAHs in surrounding environment of Urumqi, while coal combustion is negligible.关键词
PAHs/土壤/乌鲁木齐市周边/高效液相色谱法Key words
Polycyclic aromatic hydrocarbons(PAHs)/Soil/Surrounding of Urumqi/High-Performance Liquid Chromatography分类
资源环境引用本文复制引用
麦麦提·斯马义,帕丽达·牙合甫,努尔比亚·藿加吾买尔..乌鲁木齐市周边地区土壤中多环芳烃的含量及来源[J].土壤,2016,48(6):1166-1171,6.基金项目
国家自然科学基金项目(21167017；20567028)资助。 （21167017；20567028）
