湖北省农产品中多溴联苯醚的风险监测与安全评估

Risk Monitoring and Evaluation of Polybrominated Diphenyl Ethers (PBDEs) in Agro-products

采用索氏抽提-单一色谱柱净化-负离子化学电离源(NCI)-气质(GC/MS)方法对湖北省地区的17个市(州)的5种动物性食品(鲫鱼、猪肉、鸡蛋、鸭蛋、牛奶)共计206个样品进行监测分析。主成分分析表明,湖北省动物性食品中PBDEs主要同系物为BDE-183(47.56%),BDE-153(20.18%)和BDE-47(11.73%),根据其污染特征确定主要污染源为家具、汽车配件生产过程中释放的PBDEs。将食品中PBDEs的污染水平与动物性食品消费状况相结合,估算湖北省居民通过饮食摄入PBDEs的情况,确定猪肉(47%)和鸡蛋(44%)对全省居民饮食摄入PBDEs贡献最大。

206 food samples of five animal origin（fish,pork,eggs,duck eggs and milk） taken from seventeen cities in Hubei Province were analyzed by Soxhlet extraction-single column purification-negative ion chemical ionization（NCI）-low resolution GC/MS method. The PBDE levels of fish in Hubei were lower than those in other regions in China. On the principal component analysis, BDE-183,BDE-153 and BDE-47 were the main homologues, and accounted for 47.56%, 20.18% and 11.73%of total PBDEs respectively. The main sources of pollution were the release of PBDEs from the production process of furniture and auto parts. Daily dietary intakes of PBDEs for the Hubei residents were estimated by multiplying the measured concentrations of PBDEs in food with the daily consumption data of the residents. The main sources of dietary intake were pork（47%） and eggs（44%）.