State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
J Environ Sci (China). 2011;23(1):133-8. doi: 10.1016/s1001-0742(10)60384-1.
The levels and distributions of polybrominated diphenyl ethers (PBDEs) in chicken tissues from an electronic waste (e-waste) recycling area in southeast China were investigated. Human dietary intake by local residents via chicken muscle and eggs was estimated. The mean PBDEs concentrations in tissues ranged from 15.2 to 3138.1 ng/g lipid weight (lw) and in egg the concentration was 563.5 ng/g lw. The results showed that the level of total PBDEs (sigmaPBDEs) in the chicken tissue was 2-3 orders of magnitude higher than those reported in the literature. The large difference of sigmaPBDEs concentrations between tissues confirmed that the distribution of PBDEs in tissues depend on tissue-specificity rather than the "lipid-compartment". BDE-209 was the predominant congener (82.5%-94.7% of sigmaPBDEs) in all chicken tissues except in brain (34.7% of sigmaPBDEs), which indicated that deca-BDE (the major commercial PBDE formulation comprising 65%-70% of total production) was major pollution source in this area and could be bioaccumulated in terrestrial animals. The dietary PBDEs intake of the local residents from chicken muscle and egg, assuming only local bred chickens and eggs were consumed, ranged from 2.2 to 22.5 ng/(day x kg body weight (bw)) with a mean value of 13.5 ng/(day x kg bw), which was one order of magnitude higher than the value reported in previous studies for consumption of all foodstuffs.
研究了中国东南部电子废物 (e-waste) 回收区鸡组织中多溴二苯醚 (PBDEs) 的水平和分布。通过当地居民食用鸡肉和鸡蛋，评估了人体的摄入量。组织中 PBDEs 的浓度范围为 15.2 至 3138.1ng/g 脂质重量 (lw)，鸡蛋中的浓度为 563.5ng/g lw。结果表明，鸡组织中总 PBDEs（sigmaPBDEs）的水平比文献报道的高出 2-3 个数量级。组织中 sigmaPBDEs 浓度的巨大差异证实了 PBDEs 在组织中的分布取决于组织特异性，而不是“脂质区室”。除大脑外（sigmaPBDEs 的 34.7%），所有鸡组织中均以 BDE-209 为主（sigmaPBDEs 的 82.5%-94.7%），这表明十溴二苯醚（主要的商用 PBDE 制剂，占总产量的 65%-70%）是该地区的主要污染源，可在陆地动物中生物积累。假设当地居民只食用当地饲养的鸡肉和鸡蛋，从鸡肉和鸡蛋中摄入的 PBDEs 为 2.2 至 22.5ng/（天 x kg 体重 (bw)），平均值为 13.5ng/（天 x kg bw），比以前所有食物摄入的研究值高一个数量级。
