期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 744, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.140710
关键词
Human biomonitoring and risk assessment; Human milk; Dioxins; PCBs; Breastfeeding; Lactating women
资金
- European Union through the Operational Program of the European Regional Development Fund (ERDF) of the Valencian Community 2014-2020
- IBSPCV BioBank [PT13/0010/0064]
The main objective of the present research was to evaluate the levels of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs) in the human milk of Spanish lactating women who participated in the t:RMILK project so that exposure and risk could be assessed for these mothers and their breastfed children. The total Sigma PCDD/Fs + dl-PCBs TEQ(2005) concentrations in the upper-bound (UB) ranged from 129 to 13.48 pg-TEQ(2005) g(-1) lipid.The estimated geometric mean level for the sum of PCDD/F and dl-PCBs was 4.10 and 4.42 pg-TEQ(2005) g(-1) lipid, lower-bound (LB) and UB respectively and were below the reference level reported by EFSA, which is associated with adverse effects in boys of 9 years and related to lactating mothers' exposure values of the tolerable weekly intake (TWI) of around 2 pg-TEQ(2005) kg(-1) bw per week. Nevertheless, it was exceeded when the 95th percentile (8.31 pg-TEQ(2005) g(-1) lipid, as UB) was considered. Results from a multiple regression analysis showed that age has a significant impact on milk Sigma PCDD/Fs + dl PCBs levels, with higher concentrations observed in the milk from older mothers. (C) 2020 Elsevier B.V. All rights reserved.
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