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Tri-decabrominated diphenyl ethers and hexabromocyclododecane in indoor air and dust from Stockholm microenvironments 2: Indoor sources and human exposure
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2012 (English)In: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 39, no 1, 141-147 p.Article in journal (Refereed) Published
Abstract [en]

Data on polybrominated diphenyl ether (PBDE) and hexabromocyclododecane (HBCD) concentrations from Stockholm, Sweden, indoor microenvironments were combined with information from detailed questionnaires regarding the sampling location characteristics, including furnishing and equipment present. These were used to elucidate relationships between possible flame-retarded sources and the contaminant concentrations found in air and dust. Median concentration ranges of Sigma Penta-, Sigma Octa-, Sigma DecaBDE and HBCD from all microenvironments were 19-570, 1.7-280, 29-3200 and <1.6-2 pg/m(3) in air and 22-240, 6.1-80, 330-1400 and 45-340 ng/g in dust, respectively. Significant correlations were found between concentrations of some PBDEs and HBCD in air and/or dust and the presence of electronic/electrical devices, foam furniture, PUF mattresses and synthetic bed pillows in, as well as floor area and construction year of the microenvironment. Car interiors were a source to indoor air in dealership halls. Using median and maximum concentrations of Sigma Penta-, Sigma Octa-, Sigma DecaBDE and HBCD in air and dust, adult and toddler (12-24 months) intakes from inhalation and dust ingestion were estimated. Toddlers had higher estimated intakes of Sigma Penta-, Sigma DecaBDE and HBCD (7.8, 43, 7.6 ng/d, respectively) from dust ingestion than adults (5.8, 38, 6.0 ng/d, respectively). Air inhalation in offices was also an important exposure pathway for Sigma Penta-, Sigma Octa- and Sigma DecaBDE in adults. For Sigma PentaBDE and HBCD, air inhalation and dust ingestion play minor roles when compared to previously published Swedish dietary intakes (median exposures). However, in worst case scenarios using maximum concentrations, dust ingestion may represent 77 and 95% of toddler intake for Sigma PentaBDE and HBCD, respectively.

Place, publisher, year, edition, pages
2012. Vol. 39, no 1, 141-147 p.
Keyword [en]
Polybrominated diphenyl ether, Hexabromocyclododecane, Brominated flame retardant, Indoor air, House dust, Human exposure
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-76315DOI: 10.1016/j.envint.2011.11.001ISI: 000300129100019OAI: oai:DiVA.org:su-76315DiVA: diva2:526906
Note
3Available from: 2012-05-15 Created: 2012-05-10 Last updated: 2017-12-07Bibliographically approved

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