农业环境科学学报Issue(12)：2450-2456,7.DOI:10.11654/jaes.2014.12.024
广东罗非鱼养殖区水体及鱼体中多环芳烃的含量与健康风险
Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Water and Fish from Tilapia Pond of Guang-dong
摘要
Abstract
Polycyclic aromatic hydrocarbons(PAHs)have caused water and aquatic product pollution. In this study, the residual levels of 16 priority PAHs in water and Tilapia samples collected from fish ponds, markets and supermarkets in four cities of Guangdong Province were measured by GC-MS. The health risk model recommended by USEPA was used to assess health risk of these fish products. Total concentra-tions of 16 priority PAHs in the water ranged from 53.55 ng·L-1 to 679.97 ng·L-1, averaging 272.53 ng·L-1, while the contents of PAHs in aquatic products ranged from 182.66 ng·g-1 to 717.20 ng·g-1, with the average concentration of 355.28 ng·g-1. The predominant PAHs in the water and the fish were low-molecular ones, which accounted for 69.64%~97.09%and 59.70%~74.46%, respectively. The carcinogenic risk indexes of 6 PAHs through the fish consumption ranged from 2.87×10-6 a-1 to 1.56×10-5 a-1, with 8.96×10-6 a-1 and 3.54×10-6 a-1 for the town and county residents, respectively. The non-carcinogenic risk indexes of 8 PAHs varied from 2.51×10-10 a-1 to 1.54×10-9 a-1, much lower than the maximum tolerable value(5.0×10-5 a-1)recommended by the International Commission on Radiological Protection.关键词
多环芳烃/珠江三角洲/养殖鱼塘/健康风险Key words
polycyclic aromatic hydrocarbons/Pearl River Delta/fish pond/health risk assessment分类
资源环境引用本文复制引用
谢文平,朱新平,郑光明,单奇,马丽莎..广东罗非鱼养殖区水体及鱼体中多环芳烃的含量与健康风险[J].农业环境科学学报,2014,(12):2450-2456,7.基金项目
中国水产科学研究院基本科研业务费专项资金（2012A0303）；广东省省级财政专项资金 （）
