四川环境2024，Vol.43Issue(3)：49-55,7.DOI:10.14034/j.cnki.schj.2024.03.007
化工园区及周边农田土壤多环芳烃污染特征、来源及风险评价
Pollution Characteristics,Source Analysis and Risk Assessment of Polycyclic Aromatic Hydrocarbons of Farmland Soil Inside and Around a Typical Chemical Industry Park
宋艳艳 1贾鹏 1房宁宁 1王红 1亓恒振1
作者信息
- 1. 山东省淄博生态环境监测中心,山东淄博 255040
- 折叠
摘要
Abstract
In order to study the pollution status of polycyclic aromatic hydrocarbons(PAHs)in the farmland soil around a chemical industry park,the pollution level and distribution characteristics of PAHs in the farmland soil inside and around a typical chemical industry park were analyzed in Zibo.The sources of PAHs were analyzed by using the high-low molecular ratio method and principal component analysis method,and the ecological risk was assessed based on the toxic equivalent quantity(TEQ)method.The results showed that the total concentrations of 16 PAHs(∑16PAHs)ranged from 74.4～545.5 μg/kg,with the mean value of 221.2 μg/kg.The degree of PAHs pollution in the sampling area from high to low was as follows:soil surrounding large chemical enterprises＞soil inside the park＞soil around the park(＜1000 m)＞soil around the park(1000～2000 m)＞soil in the control area.The research areas were dominated by high molecular PAHs(4～6 rings),and the farther away from the pollution source,the lower the proportion of high molecular PAHs.The source analysis showed that the PAHs in the farmland soil in the research areas were mixed sources,mainly from coal burning,followed by volatilization of oil and traffic emissions.The risk assessment results showed that there were low potential carcinogenic risks of PAHs in the research areas,and the seven carcinogenic PAHs were the main contributors to the carcinogenic risk,with the highest contribution of dibenzo(a,h)anthracene and followed by benzo(a)pyrene.关键词
化工园区/农田土壤/多环芳烃/污染特征/来源分析/风险评价Key words
Chemical industry park/farmland soil/PAHs/pollution characteristic/source analysis/risk assessment分类
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宋艳艳,贾鹏,房宁宁,王红,亓恒振..化工园区及周边农田土壤多环芳烃污染特征、来源及风险评价[J].四川环境,2024,43(3):49-55,7.
