某典型焦化厂土壤多环芳烃污染源解析及健康风险评价  

Source analysis and health risk evaluation of soil polycyclic aromatic hydrocarbon pollution in a typical coking plant

作　　者：陈嘉禾 李明姣 王知颖 董小艳[1] 阮鸿洁[1] 王琼[1] CHEN Jiahe;LI Mingjiao;WANG Zhiying;DONG Xiaoyan;RUAN Hongjie;WANG Qiong(China CDC Key Laboratory of Environment and Population Health,National Institute of Environmental Health,Chinese Center for Disease Control and Prevention;School of Ecology and Environment,Inner Mongolia University)

机构地区：[1]中国疾病预防控制中心环境与人群健康重点实验室,中国疾病预防控制中心环境与健康相关产品安全所 [2]内蒙古大学生态与环境学院

出　　处：《环境工程技术学报》2025年第2期378-387,共10页Journal of Environmental Engineering Technology

基　　金：国家自然科学基金项目(42177418)。

摘　　要：为探究焦化厂不同区域土壤中多环芳烃(PAHs)的污染特征及对人群的健康风险,对某焦化厂生产区域与非生产区域土壤的污染特征进行对比分析,利用特征比值法与主成分分析法探究不同区域污染的来源,并评估其对人群的健康风险。结果显示,该焦化厂土壤的PAHs浓度均低于第二类建设用地标准;生产区域土壤的PAHs浓度高于非生产区域,二者均以中等、低分子量的PAHs为主。生产区域土壤污染主要来自煤炭燃烧源,非生产区域的土壤污染来自煤炭燃烧源、交通源以及液化石油燃烧源。健康风险评价结果表明,该焦化厂土壤PAHs致癌风险与非致癌风险均处于可接受水平。This study aimed to investigate the contamination characteristics of polycyclic aromatic hydrocarbons(PAHs)in soils from various areas of a coking plant and evaluate the associated health risks to the population.The contamination characteristics of soils in the production and non-production areas of the coking plant were compared and analyzed.Using the eigenvalue ratio method and the principal component analysis method,the sources of contamination in different areas were investigated and their health risks to the population were evaluated.The results indicated that PAHs concentrations in the coking plant soils were below the standard for Class II construction land.PAHs levels in the soil of the production area were higher than those in the non-production area,with both areas predominantly containing medium and low molecular weight PAHs.Soil pollution in the production area primarily originated from coal combustion,while in the non-production area,pollution came from coal combustion,transportation,and liquefied petroleum combustion sources.Health risk evaluations showed that both carcinogenic and non-carcinogenic risks were within acceptable levels.

关 键 词：焦化厂 土壤污染 多环芳烃 源解析 健康风险评价 

分 类 号：X53[环境科学与工程—环境工程] X820.4