生态环境学报2016，Vol.25Issue(12)：2005-2013,9.DOI:10.16258/j.cnki.1674-5906.2016.12.016
山西省典型燃煤污染区土壤中多环芳烃风险评价
Polycyclic Aromatic Hydrocarbons Pollution and Risk Assessment in Soil of Typical Coal-fired Pollution Region in Shanxi Province
摘要
Abstract
To investigate the pollution, ecological risk and health risk of PAHs, GC-MS was adopted to analysis the concentration of 16 priority polycyclic aromatic hydrocarbons (PAHs) which were measured in 128 surface soil samples from typical coal-fired pollution region in Shanxi Province. The results showed that the total mass concentration of these PAHs were (723.2±1230) μg·kg-1. Four to six rings PAHs contributed most of total PAH burden. According to Maliszewska-Kordybach's classification standards of soil contamination, 78.12% of samples were contamined in different degree. Based on Nemerow Pollution Index, the classification evaluation showed that 83.59% soil samples were polluted. Gucheng Town and Xincheng Town were the most heavily polluted area, over 60% soil samples were heavily polluted by PAHs. Considering the different toxicity in PAHs monomer, toxic equivalence factors (TEFs) were used for valuing PAHs ecological risk. The results showed Bap toxic equivalent quantity (TEQBap) of 10 PAHs in the Dutch soil standard were (67.50±137.7) μg·kg-1, 42.19% of samples in which were higher than Dutch target values. Gucheng Town and Xincheng Town were the most heavily toxic contamination area, exceed multiple was above 3 times, averagely. Both for adult and children, PAHs in the soil of studied region were unlikely to pose a significant non-carcinogenic risk. Moreover, the total cancer risk (CKtotal) exceeded acceptable levels (10-6) in Gucheng, Xincheng , suggesting the soil PAHs of these areas may cause harm to human health and should be paid more attention.关键词
多环芳烃/土壤污染/生态风险/健康风险Key words
PAHs/soil contamination/ecological risk/health risk分类
资源环境引用本文复制引用
陶诗阳,马瑾,周永章,侯红,赵龙,孙在金,秦晓鹏..山西省典型燃煤污染区土壤中多环芳烃风险评价[J].生态环境学报,2016,25(12):2005-2013,9.基金项目
国家重点研发计划项目(2016YFD0800302) （2016YFD0800302）
