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Dietary intake of PCDD/Fs and dioxin-like PCBs from the Chinese total diet study in 2007.
MedLine Citation:
PMID:  23010224     Owner:  NLM     Status:  Publisher    
Concentrations of 17 polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and 12 dioxin-like polychlorinated biphenyls (dl-PCBs) were measured in 96 food composite samples from eight varieties of food groups from the Chinese total diet study (TDS) in 2007. The concentrations of samples, expressed as WHO toxic equivalents (TEQ), ranged from 0.001pg TEQ g(-1) to 0.85pgTEQg(-1) (fresh weight). Dietary intake of PCDD/Fs and dl-PCBs of 12age/gender subgroups of the Chinese population subsequently estimated ranges from 15.4pg TEQkg(-1)bwmonth(-1) to 38.7pgTEQkg(-1)bwmonth(-1) for average population and from 68.5pgTEQkg(-1)bwmonth(-1) to 226.1pgTEQkg(-1)bwmonth(-1) for high consumers (the 97.5th percentile). Dietary exposure of children (mean: 32.5pgTEQkg(-1)bwmonth(-1)) is significantly higher than that of the adults (mean: 21.5pgTEQkg(-1)bwmonth(-1)) (p<0.01) presumably due to more food consumed by children relative to their body weight compared to adults. There is no difference of dietary exposure, expressed as pg TEQkg(-1)bw, found between different genders. Across various regions in China, there are large differences of dietary exposure of adult population and pattern of contribution of food groups to total exposure due to different contamination level and food habits. Dietary exposures of average population of various subgroups were all below the PTMI recommended by JECFA, but those of higher consumers were found exceeding or comparable to the PTMI.
Lei Zhang; Jingguang Li; Xiao Liu; Yunfeng Zhao; Xiaowei Li; Sheng Wen; Yongning Wu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-22
Journal Detail:
Title:  Chemosphere     Volume:  -     ISSN:  1879-1298     ISO Abbreviation:  Chemosphere     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
The Key Laboratory of Food Safety Risk Assessment, Ministry of Health, and China National Center of Food Safety and Risk Assessment, 7 Panjiayuannanli, Beijing 100021, China; National Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Beijing 100050, China.
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