中国地质调查2025，Vol.12Issue(1)：90-97,8.DOI:10.19388/j.zgdzdc.2024.105
重工业城市岩溶地下河中PAHs的污染特征及健康风险评价
Pollution characteristic and health risk assessment of polycyclic aromatic hydrocarbons in karst underground river of heavy industrial city
摘要
Abstract
The heavy industrial city is an important source of polycyclic aromatic hydrocarbons(PAHs)pollution.PAHs can exist in karst environment for a long time due to its unique underground space structure,which harms the karst ecosystem and human health.In order to reveal the characteristics of PAHs pollution in karst under-ground river in heavy industrial city,the researchers in this paper collected 6 sampling sites in Jila underground river pipeline strike in June(wet season)and December(dry season)in 2015,and added 1 sampling site in Xiangshui River during dry season.The results are as follows.① The average concentrations of ∑PAHs in groundwater in wet reason and dry season were 267.32 ng/L and 350.59 ng/L,respectively.The PAHs were mainly composed of 2～3 rings in wet season and 4 rings in dry season,which were influenced by rainfall and physicochemical properties of each component.② Jila underground river was affected by Liubei heavy industry,and its PAHs pollution level was medium.③ The results of health risk assessment showed that only part of the risk index in dry season was higher than 5.0 × 10-5,especially in the early childhood stage,indicating that PAHs had certain harm to the residents'health,but the harm was not great.④ Through the follow-up tracking of PAHs in Jila underground river,it was found that the PAHs concentration in Jila underground river was in a rela-tively stable state in recent years.The environmental behavior research of PAHs in the multi-environmental media of heavy industrial cities and prevention of PAHs pollution to karst environment is not only an important content of environmental science research,but also provides scientific and technological support for industrial lay-out and urban planning in karst areas.关键词
重工业城市/岩溶地下河/PAHs/污染特征/健康风险评价Key words
heavy industrial city/karst underground water/PAHs/pollution characteristic/health risk assess-ment引用本文复制引用
苗迎..重工业城市岩溶地下河中PAHs的污染特征及健康风险评价[J].中国地质调查,2025,12(1):90-97,8.基金项目
中国地质调查局"西南地区岩溶碳汇本底调查与监测(编号:DD20230547)"、中国地质科学院岩溶地质研究所基本科研业务费"重庆浅层岩溶热储成因模式及水文动态模拟(编号:2023019)"和国家自然科学基金"气候变化下的喀斯特关键带结构特征、水文过程与模型模拟——中国西南喀斯特高原区和伊朗札格罗斯山区流域对比研究(编号:42261144672)"项目联合资助. （编号:DD20230547）
