POLYBROMINATED DIPHEYL ETHER LEVELS IN SEVERAL RETAIL FOODS IN A SOUTH CHINA CITY

摘要

Objective: To investigate PBDE levels in several retail foods in a South China city. Methods: The total 7 categories of food were collected in the market and PBDE levels were analyzed quantitatively with Soxhlet extraction, acidic silica gel treatment, cleanup through silica gel and alumina column and determination through HRGC/HRMS. Results: In each sort of food, the average concentration of PBDE congeners was 227.15 pg/g, 189.50pg/g, 75.40 pg/g, 30.32 pg/g, 13.33 pg/g, 5.21 pg/g, 2.39 pg/g for egg, fish, pork, beef, visceral organs of pig, rice and vegetables respectively and fresh weight was used for report result. The rank of PBDEs total concentration was egg, fish, pork, beef, visceral organs of pig, rice and vegetables. BDE-47 isomer accounted for the greatest proportion of the total amount of the PBDE in all samples, with percentages of 12～65. Conclusions: Dietary intake can't be ignored as a route of exposure to PBDEs for the general population and more concern should be given to the pollution of PBDEs in foods.