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| Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Water and Fish from Tilapia Pond of Guangdong |
| Received:July 24, 2014 |
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| KeyWord:polycyclic aromatic hydrocarbons;Pearl River Delta;fish pond;health risk assessment |
| Author Name | Affiliation | E-mail | | XIE Wen-ping | Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Laboratory of Seafood Quality and Security Evaluation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China | | | ZHU Xin-ping | Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Laboratory of Seafood Quality and Security Evaluation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China | zhuxinping_1964@163.com | | ZHENG Guang-ming | Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Laboratory of Seafood Quality and Security Evaluation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China | | | SHAN Qi | Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Laboratory of Seafood Quality and Security Evaluation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China | | | MA Li-sha | Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation of Ministry of Agriculture, Laboratory of Seafood Quality and Security Evaluation of Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China | |
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| 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 concentrations 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. |
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