PMID- 22420632 OWN - NLM STAT- MEDLINE DCOM- 20120807 LR - 20221207 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 46 IP - 8 DP - 2012 Apr 17 TI - Exposure to toxic metals and persistent organic pollutants in Inuit children attending childcare centers in Nunavik, Canada. PG - 4614-23 LID - 10.1021/es203622v [doi] AB - Arctic populations are exposed to substantial levels of environmental contaminants that can negatively affect children's health and development. Moreover, emerging contaminants have never been assessed in Inuit children. In this study, we document the biological exposure to toxic metals and legacy and emerging persistent organic pollutants (POPs) of 155 Inuit children (mean age 25.2 months) attending childcare centers in Nunavik. Blood samples were analyzed to determine concentrations of mercury, lead, polychlorinated biphenyls (PCBs), pesticides, brominated flame retardants [e.g., polybrominated diphenyl ethers (PBDEs)] and perfluoroalkyl and polyfluoroalkyl substances [PFASs; e.g. perfluorooctanesulfonate (PFOS) and perfluorooctane (PFOA)]. Lead [geometric mean (GM) 0.08 mumol/L], PCB-153 (GM 22.2 ng/g of lipid), BDE-47 (GM 184 ng/g of lipid), PFOS (GM 3369 ng/L), and PFOA (GM 1617 ng/L) were detected in all samples. Mercury (GM 9.8 nmol/L) was detected in nearly all blood samples (97%). Levels of metals and legacy POPs are consistent with the decreasing trend observed in Nunavik and in the Arctic. PBDE levels were higher than those observed in many children and adolescents around the world but lower than those reported in some U.S. cities. PFOS were present in lower concentrations than in Nunavimmiut adults. There is a clear need for continued biomonitoring of blood contaminant levels in this population, particularly for PBDEs and PFASs. FAU - Turgeon O'Brien, Huguette AU - Turgeon O'Brien H AD - Groupe d'etudes en nutrition publique, Departement des sciences des aliments et de nutrition, Universite Laval, Quebec, Quebec, Canada. huguette.turgeon-obrien@fsaa.ulaval.ca FAU - Blanchet, Rosanne AU - Blanchet R FAU - Gagne, Doris AU - Gagne D FAU - Lauziere, Julie AU - Lauziere J FAU - Vezina, Carole AU - Vezina C FAU - Vaissiere, Emilie AU - Vaissiere E FAU - Ayotte, Pierre AU - Ayotte P FAU - Dery, Serge AU - Dery S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120402 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Environmental Pollutants) RN - 0 (Flame Retardants) RN - 0 (Fluorocarbons) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 2P299V784P (Lead) RN - FXS1BY2PGL (Mercury) SB - IM EIN - Environ Sci Technol. 2012 Jul 17;46(14):7926 MH - Child Day Care Centers MH - Child, Preschool MH - Environmental Monitoring MH - Environmental Pollutants/*blood MH - Female MH - Flame Retardants/analysis MH - Fluorocarbons/blood MH - Halogenated Diphenyl Ethers/blood MH - Humans MH - Hydrocarbons, Chlorinated/blood MH - Infant MH - Inuit MH - Lead/blood MH - Male MH - Mercury/blood MH - Pesticides/blood MH - Quebec EDAT- 2012/03/17 06:00 MHDA- 2012/08/08 06:00 CRDT- 2012/03/17 06:00 PHST- 2012/03/17 06:00 [entrez] PHST- 2012/03/17 06:00 [pubmed] PHST- 2012/08/08 06:00 [medline] AID - 10.1021/es203622v [doi] PST - ppublish SO - Environ Sci Technol. 2012 Apr 17;46(8):4614-23. doi: 10.1021/es203622v. Epub 2012 Apr 2.