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Total dietary exposure of PCBs in Koreans and related socio‐demographic factors (813.9)
Author(s) -
Lee Jeeyeon,
Lee Haengshin,
Kim Dohee,
Yon Miyong,
Nam Jiwoon,
Kwon Sungok,
Choi Ariari,
Chang Yoonseok,
Shin Eunsu,
Baek Ockjin,
Suh Junghyuck,
Park SunHee,
Kim Choil
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.813.9
Subject(s) - quartile , zoology , tolerable daily intake , population , national health and nutrition examination survey , medicine , pollutant , toxicology , environmental health , chemistry , biology , body weight , confidence interval , organic chemistry
Due to environmental toxicity and classification as a persistent organic pollutant, Polychlorinated biphenyls (PCBs) production was banned by the Stockholm Convention on Persistent Organic Pollutants in 2001. In line with risk management of PCBs, we estimated dietary exposure of PCBs in Koreans and looked into the possible associations between socio‐demographic factors and PCBs exposure. In a Total Diet Study (TDS), dietary intake data from 2008‐2011 Korea National Health and Nutrition Examination Survey was used to select representative foods (RF) for PCBs analysis. With best‐fit mapping of other foods to RF, comprehensive PCBs exposure was estimated at individual & population level based on the PCBs content in RF. Mean PCBs exposure of the Korean population was estimated to be 6.04±0.04 ng/kg bw/day corresponding to 30.2 % of the reference (tolerable daily intake: TDI) by WHO. Exposure was significantly higher in males (6.69±0.06 vs. 5.38±0.04 ng/kg bw/day in females, p<0.0001), in higher income group (6.34±0.08 vs. 5.73±0.08 ng/kg bw/day, quartile 4 vs. quartile 1, p<0.0001), and in population with higher fat intake (7.65±0.08 vs. 3.86±0.05 ng/kg bw/day, quartile 4 vs. quartile 1, p<0.0001). Also, the exposure in children (10.25±0.13 ng/kg bw/day, 1‐11 yrs,) was double of that in adults (5.73±0.05 ng/kg bw/day, 19‐64 yrs.). Although the present dietary exposure of PCBs in Koreans is far below the reference value, these results suggest that the socio‐demographic factors and dietary pattern should be considered in risk management and risk communication for PCBs. Continuous monitoring of PCBs in foodstuffs and periodic TDS are warranted. Grant Funding Source : supported by a grant (13162KFDA026) from Korea Food and Drug Administration in 2013