摘要
全氟化合物(PFASs)具有极强的环境持久性.近年来,随着全氟辛酸(PFOA)和全氟辛基磺酸(PFOS)及其盐类增列《斯德哥尔摩公约》,以及欧洲食品安全局(EFSA)下调4类PFASs每周允许摄入量(TWI),PFASs的膳食暴露风险受到进一步关注.动物源性食品是人类暴露PFASs的主要来源,长链PFASs是其主要贡献单体.本研究共采集150份北京市售生鲜肉(畜肉、禽肉、水产品)、禽蛋、奶制品等动物源性食品,对其中长链PFASs的赋存情况和居民膳食暴露进行研究.结果显示,共有72份样品检出PFASs,总检出率为48%.动物源性食品中PFASs含量范围为ND-2.94 ng·g^(-1),水产品中ΣPFASs最高(20.7 ng·g^(-1)),次之为蛋类、畜肉、禽肉(9.29、3.68、2.59 ng·g^(-1)),奶类最低(0.30 ng·g^(-1)).PFOA和PFOS是动物源食品中的主要贡献单体,平均含量分别为0.09 ng·g^(-1)和0.06 ng·g^(-1).对本研究样品中PFASs含量开展膳食风险评估,居民通过动物源性食品摄入PFASs含量为ND-3.68 ng·kg^(-1)·d^(-1).
Perfluoroalkyl substances(PFASs) are persistent in the environment. Recently,perfluorooctane sulfonic acid(PFOS), perfluorooctanoic acid(PFOA) and their salts have been listed in the Stockholm Convention for regulation. The European Food Safety Authority(EFSA) adjusted the tolerable weekly intake(TWI) of 4 PFASs so that the risk assessment of PFASs has raised more concern. Animal-derived food is the main source for human exposing to PFASs. Long-chain PFASs are the major contributions. In this study, 150 animal-derived food samples were collected, including raw meat(livestock, poultry and aquatic products), eggs and dairy products. The long-chain PFASs were studied. The detection rate of PFASs was 48%. The range of PFASs concentration in animalderived food was ND-2.94 ng·g^(-1), the PFASs concentrations in aquatic products were the highest(20.7 ng·g^(-1)), followed by eggs(9.29 ng·g^(-1)), livestock(3.68 ng·g;), poultry(2.59 ng·g^(-1)) and milk(0.30 ng·g^(-1)). PFOA(0.09 ng·g^(-1)) and PFOS(0.06 ng·g^(-1)) were the two major congeners in animalderived food. The dietary risk assessment was carried out and the residents ’ exposure to PFASs through animal-derived food was ND-3.68 ng·kg^(-1)·d^(-1).
作者
刘逸飞
李阳
赵楠楠
李晓敏
王培龙
苏晓鸥
LIU Yifei;LI Yang;ZHAO Nannan;LI Xiaomin;WANG Peilong;SU Xiaoou(Institute of Quality Standard and Testing Technology for Agro-Products of CAAS,Beijing,100081,China)
出处
《环境化学》
CAS
CSCD
北大核心
2021年第11期3360-3367,共8页
Environmental Chemistry
基金
国家重点研发计划(2017YFC1600300)
国家自然科学基金(21777190)资助。
关键词
全氟化合物
动物源性食品
水产品
风险评估
perfluoroalkyl substances
animal-derived food
aquatic food
risk assessment
作者简介
通讯联系人:李晓敏,Tel:13911101249,E-mail:lixiaomin@caas.cn。
