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文章摘要

新疆典型化工园区土壤和地下水中多环芳烃现状与风险评价

Investigation and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Soil and Groundwater in A Typical Chemical Industrial Park in Xinjiang

DOI：

中文关键词: 多环芳烃污染现状风险评价土壤地下水化工园区新疆

英文关键词: Polycyclic aromatic hydrocarbons（PAHs） Current status of pollution Risk assessment Soils Groundwater Chemical industrial park Xinjiang

基金项目:国家重点研发计划基金资助项目（2023YFC3706602）；中央引导地方科技发展专项基金资助项目（ZYYD2023C23）；“天山英才”青年科技拔尖人才基金资助项目（2022TSYCCY0007）

作者	单位
孙萱萱	新疆农业大学资源与环境学院
王灵	新疆农业大学资源与环境学院；新疆天熙环保科技有限公司
闫劲烨	新疆农业大学资源与环境学院
姜纪凯	新疆农业大学资源与环境学院
朱新萍	北京农学院生物与资源环境学院/农业农村部华北都市农业重点实验室
鲁磊磊	生态环境部南京环境科学研究所
雷荣荣	新疆天熙环保科技有限公司

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中文摘要:

为探明新疆典型石油化工园区土壤和地下水中多环芳烃（PAHs）污染现状及生态风险，布设16个土壤和7个地下水采样点，于冬、夏季采集样品，采用高效液相色谱〖CD*2〗荧光检测法测定样品中15种PAHs含量。结果显示，冬季和夏季土壤中∑PAHs平均值分别为2 51838μg/kg和1 98361μg/kg；〖JP+1〗地下水中∑PAHs平均值分别为4170μg/L〖JP〗和10142μg/L，夏季高于冬季。源解析表明，土壤中PAHs主要来源于石油挥发、化石燃料及生物质燃烧，夏季新增机动车尾气贡献，而地下水中PAHs则以石油挥发为主。基于风险熵值法评估，冬夏两季所有地下水点位均处于高生态风险等级；土壤中高风险点位占比冬季为250%，夏季为187%。总体而言，园区土壤和地下水中PAHs污染严重，生态风险突出，亟须加强管控。

英文摘要:

The samples were collected in summer and winter from 16 soil sampling sites and 7 groundwater sampling sites in a typical petrochemical industrial park in Xinjiang， the content of 15 kinds of PAHs in the samples were determined by high performance liquid chromatography fluorescence detection（HPLC FLD）， aiming to investigate the current pollution and ecological risks of PAHs in the study area. The results showed that during winter and summer， the mean ∑PAHs contents in soil were 2 51838μg/kg and 1 98361 μg/kg respectively， while those in groundwater were 4170μg/L and 10142μg/L， respectively， indicating a higher levels in summer than in winter. Source 〖GK!87mm〗apportionment revealed that PAHs in soil mainly originated from petroleum volatilization， fossil fuel combustion and biomass burning， with an additional contribution from vehicle emissions in summer. In contrast， PAHs in groundwater were predominantly attributed to petroleum volatilization. The assessment results of risk quotient method indicated that all groundwater sampling sites were at high eco〖HK〗logical 〖HK〗risk level in both winter and summer. The proportion of high risk soil sampling sites was 250% in winter and 187% in summer. Overall， PAHs contamination in the soil and groundwater of the park was severe， with prominent ecological risks， calling for urgent enhancement of control.

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