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Relationship of PCDD/F concentrations in duck-egg farmers and consumption of ranched duck eggs in central Taiwan

Authors

  • Hsiu-Ling Chen,

    1. Institute of Occupational Safety and Hazard Prevention, Hung Kuang University, Taichung, Taiwan
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  • Hsin-Yi Huang,

    1. Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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  • Po-Chin Huang,

    1. Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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  • Ching-Chang Lee

    Corresponding author
    1. Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
    2. Environmental Trace Toxic Substances Research Center, College of Medicine, National Cheng Kung University, Tainan, Taiwan
    • Institute of Occupational Safety and Hazard Prevention, Hung Kuang University, Taichung, Taiwan.
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Abstract

The 2004 food market-basket survey in Taiwan found high levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in duck eggs. A subsequent survey in Chang-Hua County, central Taiwan, found nine duck farms for egg production and duck eggs that were highly contaminated by PCDD/Fs in the secondary sampling and analysis during the years 2004 to 2005. Duck-egg farmers eat duck eggs rather than chicken eggs, and the aim of the current study was to evaluate how eating contaminated duck eggs affected serum PCDD/F accumulation and PCDD/F profiles in family members of duck-egg farmers. Forty-two family members of duck-egg farmers and 88 residents living nearby (control group) were recruited. Serum PCDD/F levels were significantly higher in duck-egg farmers than in the control group (28.1 vs 18.6 pg World Health Organization toxic equivalency [TEQ]/g lipid, WHO-TEQ). Significant differences in PCDD/F levels were found for most congeners, especially for 2,3,4,7,8-penta–chlorinated dibenzofurans. Elevated serum PCDD/F levels were positively associated with an increase in monthly duck-egg consumption after adjustments for fish consumption. The current result contradicted results of our previous study, which showed a positive association between fish intake and serum PCDD/F levels. The matter of cultivation in the contaminant area in Chang-Hua County should be considered more seriously. Environ. Toxicol. Chem. 2010;29:2402–2408. © 2010 SETAC

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