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Significantly Higher Polybrominated Diphenyl Ether Levels in Young US Children than in Their Mothers
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
2010 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 44, no 13, 5256-5262 p.Article in journal (Refereed) Published
Abstract [en]

While young children are rarely included in biomonitoring studies, they are presumed to be at greater risk of ingesting environmental contaminants particularly those that accumulate in foods or shed from consumer products. The widely used fire retardants polybrominated diphenyl ethers (PBDEs) are ubiquitous contaminants in the indoor environment and are widely detected at higher levels in Americans than in individuals from other countries. However, there are only three studies of PBDEs in U.S. children. We hypothesized that PBDEs are present in higher concentrations in young children than their mothers. PBDEs were assessed in blood samples collected concurrently from 20 mothers and their children, ages 1.5 to 4 years. The chemical analyses were performed by GC/MS applying selected ion monitoring. The samples were analyzed for 20 PBDE congeners; 11 were detected. Sigma PBDEs for children were typically 2.8 times higher than for mothers, with median child:mother ratios varying from 2 to 4 for individual congeners. In 19 of 20 families studied, children had higher Sigma PBDE concentrations than their mothers with significant (p < 0.01) concentration differences for five of the PBDE congeners. Decabromodiphenyl ether (BDE-209) was quantitated in 13 children and 9 mothers. Other studies indicate PBDEs are not elevated at birth, suggesting that early life is an intense period of PBDE intake. Children's increased hand-to-mouth activity, dietary preferences, and exposures from breast milk may result in greater ingestion of PBDEs than adults. These findings suggest that measurements from adults likely do not reflect exposures to young children despite sharing homes and similar diets.

Place, publisher, year, edition, pages
2010. Vol. 44, no 13, 5256-5262 p.
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Chemical Sciences
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URN: urn:nbn:se:su:diva-50653DOI: 10.1021/00009357ISI: 000279304700069OAI: oai:DiVA.org:su-50653DiVA: diva2:383239
Note
authorCount :4Available from: 2011-01-04 Created: 2010-12-30 Last updated: 2017-12-11Bibliographically approved

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Athanassiadis, IoannisBergman, Åke
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