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中国精品科技期刊2020
张恣意,曹文成,周妍,等. 湖北某典型地区动物源食品中全氟及多氟烷基化合物的污染现状和膳食暴露评估[J]. 食品工业科技,2021,42(20):214−222. doi: 10.13386/j.issn1002-0306.2021020041.
引用本文: 张恣意,曹文成,周妍,等. 湖北某典型地区动物源食品中全氟及多氟烷基化合物的污染现状和膳食暴露评估[J]. 食品工业科技,2021,42(20):214−222. doi: 10.13386/j.issn1002-0306.2021020041.
ZHANG Ziyi, CAO Wencheng, ZHOU Yan, et al. Pollution Status and Dietary Exposure Assessments of Per- and Polyfluoroalkyl Substances in Animal Food from a Typical Area in Hubei Province[J]. Science and Technology of Food Industry, 2021, 42(20): 214−222. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021020041.
Citation: ZHANG Ziyi, CAO Wencheng, ZHOU Yan, et al. Pollution Status and Dietary Exposure Assessments of Per- and Polyfluoroalkyl Substances in Animal Food from a Typical Area in Hubei Province[J]. Science and Technology of Food Industry, 2021, 42(20): 214−222. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021020041.

湖北某典型地区动物源食品中全氟及多氟烷基化合物的污染现状和膳食暴露评估

Pollution Status and Dietary Exposure Assessments of Per- and Polyfluoroalkyl Substances in Animal Food from a Typical Area in Hubei Province

  • 摘要: 为了解湖北某典型地区动物源食品(水产类食品、蛋类食品、肉类食品、乳制品)中全氟及多氟烷基化合物(per- and polyfluoroalkyl substances,PFASs)污染水平和组成特征,评估当地标准人通过动物源食品摄入PFASs的暴露风险;以湖北某典型地区居民日常消费的动物源食品(水产类食品、蛋类食品、肉类食品、乳制品)为研究对象,建立了碱消解加固相萃取小柱净化的预处理方法,结合高效液相色谱-串联质谱(high performance liquid chromatography-tandem mass spectrometry,UPLC-MS/MS)测定动物源食品中14种PFASs浓度;结合我国第五次中国总膳食调查中湖北省居民各类食物的消费量和人的标准体重,参考欧洲食品安全局的剂量值,对当地一个标准人通过动物源食品摄入PFASs的暴露风险进行评估。结果表明:各类食品中,14种PFASs的加标回收率范围为81%~120%,相对标准偏差为2.71%~12.28%。在0.1~20 ng/g浓度范围的决定系数(R2)大于0.994。检测限为0.003 ng/g,定量限为0.01 ng/g。湖北某地动物源食品中PFASs污染普遍存在,其中水产类食品中有5种PFASs的检出率达到了100%,水产中总PFASs浓度为0.381~75.114 ng/g,平均值为8.655 ng/kg;蛋类食品中有6种PFASs的检出率达到了100%,蛋类食品中总PFASs含量为1.090~7.581 ng/g,平均值为4.163 ng/g;肉类样品中有1种PFAS检出率达到100%,当地肉类食品中总PFASs含量为0.306~2.512 ng/g,平均值为0.742 ng/g。此外不同种类的动物源食品中PFASs的浓度水平和残留特征存在差异,不同水产品中∑PFASs的中位数呈现鲢鱼(11.680 ng/g)>乌鳢(2.156 ng/g)>鲫鱼(1.766 ng/g)>鳊鱼(1.216 ng/g)>草鱼(0.754 ng/g)的趋势,不同蛋类食品中∑PFASs的中位数呈现鸡蛋(6.049 ng/g)>鸭蛋(2.514 ng/g)的趋势,不同肉类食品中∑PFASs的中位数呈现牛肉(0.765 ng/g)>鸭肉(0.665 ng/g)>鸡肉(0.547 ng/g)>猪肉(0.535 ng/g)的趋势,乳制品中,酸奶中∑PFASs的中位数为0.138 ng/g。经估算,当地一个标准人摄入上述水产类食品和蛋类食品中全氟辛烷磺酸(Perfluorooctane sulfonate,PFOS)危害指数均大于1,会对当地居民产生潜在危害。

     

    Abstract: To understand the contamination level and composition characteristics of per- and polyfluoroalkyl substances (PFASs) in animal food (aquatic food, egg food, meat food) produced in a typical area of Hubei province, and to evaluate the exposure risk of local standard man consuming PFASs from animal food, taking the animal food (aquatic food, egg food, meat food, dairy product) consumed by residents in a typical area of Hubei province as the research object, the pretreatment method (alkali digestion and solid phase extraction with small column purification) combined with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was established. The concentrations of 14 kinds of PFASs in animal food were determined. The exposure risk of local adult men to PFASs from food of animal origin was assessed by referring to the consumption of various kinds of food, standard human body weight and the dose value of European Food Safety Authority in the fifth China total dietary survey. The results showed that the recoveries of 14 kinds of PFASs were in the range of 81%~120%. And the relative standard deviations (RSD) were in the range of 2.71%~12.28%. The correlation coefficient (R2) was greater than 0.994 in the concentration range of 0.1~20 ng/g. The limit of detection was 0.003 ng/g, and the limit of quantification was 0.01 ng/g. PFASs contamination was widespread in animal food in Hubei Province. The detection rate of 5 kinds of PFASs in aquatic food reached 100%, and the total PFASs concentration in aquatic food ranged from 0.381 to 75.114 ng/g, with an average of 8.655 ng/kg. The detection rate of 6 kinds of PFASs in egg foods reached 100%, and the total PFASs content in egg foods ranged from 1.090 to 7.581 ng/g, with an average of 4.163 ng/g. The detection rate of 1 kinds of PFASs in meat samples reached 100%. The total PFASs content in local meat products ranged from 0.306 to 2.512 ng/g, with an average of 0.742 ng/g. In addition, the concentration level and residual characteristics of PFASs in different kinds of animal foods were different. This was the median concentration of ∑PFASS in aquatic products: silver carp (11.680 ng/g)>Channa argus (2.156 ng/g)>crucian carp (1.766 ng/g)>bream (1.216 ng/g)>grass carp (0.754 ng/g). This was the median concentration of ∑PFASs in eggs: chicken eggs (6.049 ng/g)> duck eggs (2.514 ng/g). This was the median concentration of ∑PFASs in meat: beef (0.765 ng/g)>duck meat(0.665 ng/g)>chicken (0.547 ng/g) >pork (0.535 ng/g). From the perspective of dairy products, the median of ∑PFASs in yogurt was 0.138 ng/g. It was estimated that the harm index of PFOS in aquatic food and egg food was greater than 1 for a local standard person. These were potentially harmful to the local population.

     

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