兰州城区土壤中多环芳烃污染特征研究  

Study on Polycyclic Aromatic Hydrocarbons in Soil of Lanzhou Urban Areas

作　　者：冯丽梅 Feng Limei(Gansu Ganlan Water Resources and Hydropower Survey and Design Institute Co.,Ltd.,Lanzhou,Gansu,730000,China)

机构地区：[1]甘肃甘兰水利水电勘测设计院有限责任公司,甘肃兰州730000

出　　处：《绿色科技》2020年第6期136-139,共4页Journal of Green Science and Technology

摘　　要：采集了兰州市4个城区内28个土壤样品,研究了兰州城区土壤中多环芳烃(PAHs)的含量、分布和污染特征,并进一步分析了潜在的生态风险。结果显示:兰州市城区土壤中22种PAHs的污染浓度在59.7~3460.0μg·kg-1之间,平均含量606.9μg·kg-1,土壤污染主要以低分子量的2-3环PAHs为主。研究区域内土壤PAHs具有一定的潜在致癌性,应当引起环保及卫生部门的重视。28 soil samples from 4 urban areas of Lanzhouwere collected at the urban areas of Lanzhou City for analyzing the concentration levels,distributions and potential risk of PAHs in this study.The potential ecological risks were further analyzed.The results showed that the concentration of 22 PAHs in the soil of Lanzhou city ranged from59.7 to 3460.0μg/kg,with an average content of 606.9μg/kg.The soil pollution was mainly low molecular weight 2-3 ring PAHs.It is pointed out that the soil PAHs in the study area has certain potential carcinogenicity and should be taken seriously by environmental protection and health departments.

关 键 词：土壤 多环芳烃 风险评价 

分 类 号：X131.3[环境科学与工程—环境科学]