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Investigation of Contamination Levels of Perfluorinated Compounds in Eggs from Nine Coastal Provinces of China

LIU Xiaowan1, ZHANG Hong2,*, LI Jing3, SHEN Jincan4, XIAO Chengui4, ZHAO Fengjua   

  1. 1. College of Life Sciences, Shenzhen University, Shenzhen 518060, China;
    2. College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, China;
    3. College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, China;
    4. Center of Food Inspection and Quarantine, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen 518045, China
  • Online:2016-02-25 Published:2016-02-23
  • Contact: ZHANG Hong

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Abstract:

This study aimed to examine the residue level and distribution of perfluorinated compounds (PFCs) in 1 060 egg
samples collected from nine coastal provinces of China. High performance liquid chromatography-tandem mass spectrometry
(HPLC-MS/MS) combined with dispersive solid phase extraction was applied in this research. The results indicated that
detection rate of PFCs in all the egg samples was lower than 50%, and 82% of ΣPFCs were medium- and short-chain PFCs.
Among all the egg samples, the highest ΣPFCs was detected in the samples from Jiangsu (1.24 μg/kg) whereas the lowest
ΣPFCs was detected in those from Zhejiang (0.124 μg/kg). Perfluorooctane sulfonate (PFOS) was the major perfluorinated
compound detected in the samples from Jiangsu while perfluoropentanoic acid (PFPeA) was the major perfluorinated
compound found to present in samples from other provinces, indicating that the residue of PFCs in eggs is correlated with
the environmental PFCs. The health risk assessment showed that the hazard ratios of PFOS, perfluoropentanoic acid (PFOA)
and other PFCs detected in eggs were all below one, inferring that the immediate harm via egg consumption is minimal.

Key words: perfluorinated compounds (PFCs), eggs, health risk assessment, perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluoropentanoic acid (PFPeA), China’s coastal provinces

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