title: [Pollution levels of perfluorochemicals in chicken eggs and duck eggs from the markets in Beijing].
abstract: Pollution levels of perfluorochemicals in eggs purchased from the markets in Beijing had been investigated. The egg samples of chicken and duck were collected from the 59 stalls of 14 main eggs wholesale markets in Beijing, respectively. Systematic analyses were made for seventeen kinds of perfluorochemicals (11 perfluorinated carboxylates (PFCAs), 3 perfluorinated sulfonates (PFSAs), perfluorooctane sulfonamide (FOSA), 2-perfluorooctylethanoic acid (FOEA) and 2H-perfluoro-2-decenoic acid (FOUEA) by a high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The results showed that there was a certain perfluorochemical contamination in all egg samples. Nine kinds of perfluorochemicals were detected in chicken eggs, perfluorononanoic acid (PFNA), perfluoroheptanoic acid (PFHpA) and perfluorooctanoate acid (PFOA) are dominant, and their average concentrations were 0.105, 0.073 and 0.069 ng x g(-1), respectively. Ten kinds of perfluorochemicals were detected in the duck eggs, perfluorooctane sulfonate (PFOS) and PFOA are dominant, and their average concentrations were 0.378 and 0.296 ng x g(-1), respectively. Perfluoropentanoic acid ( PFPeA), perfluorotetradecanoic acid (PFTA), perfluorobutane sulfonate (PFBS) and 2-perfluorooctylethanoic acid (FOEA) were not detected in all samples. The total concentration of PFCs in the duck eggs was 3.4 times of that in the chicken eggs. A strong positive correlation (r = 0.954) was not only observed between of PFNA and PFHpA in chicken eggs, but also found between perfluoroundecanoic acid (PFUnDA) and perfluorotridecanoic acid (PFTrDA) in duck eggs (r = 0.915). The results of health-based risk assessment showed that there was little immediate risk of exposure to PFOS and PFOA via the consumption of chicken eggs and duck eggs purchased from the markets in Beijing.
authors.affiliation: College of Resources and Environment, Northwest A & F University, Yangling 712100, China. 3359236.good@163.com
authors.forename: Yan-Jie
authors.initials: YJ
authors.lastname: Qi
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhou
authors.forename: Ya-Li
authors.initials: YL
authors.lastname: Shi
authors.forename: Zhao-Fu
authors.initials: ZF
authors.lastname: Meng
mesh_terms: D017738:Alkanesulfonic Acids / Q000032:analysis; D000818:Animals; D002264:Carboxylic Acids / Q000032:analysis*; D002645:Chickens; D002681:China; D002851:Chromatography, High Pressure Liquid; D002947:Cities; D004372:Ducks; D004531:Eggs / Q000032:analysis*; D005466:Fluorocarbons / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D053719:Tandem Mass Spectrometry
chemical_list: D017738:Alkanesulfonic Acids; D002264:Carboxylic Acids; D005466:Fluorocarbons; C073608:perfluorooctane; C076994:perfluorooctane sulfonic acid