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Levels of brominated flame retardants in blood in relation to levels in household air and dust
Örebro University, Department of Natural Sciences.
Örebro University, Department of Natural Sciences.
Örebro University, Department of Natural Sciences.ORCID iD: 0000-0001-6217-8857
2007 (English)In: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 33, no 1, p. 62-69Article in journal (Refereed) Published
Abstract [en]

Levels of tri- to decabrominated diphenyl ethers (BDEs), 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE) and 1,2-bis(pentabromophenyl)ethane (DeBDethane) were determined in air, sedimentary dust and human plasma from five households in Sweden. The levels of the individual BDEs in the plasma samples were in the same order of magnitude as in other studies of the general population in Scandinavia, and varied between non-detectable (< 0.41 ng g− 1 l.w.) to 17 ng g− 1 (l.w.). BDE#28 and #47 were present in all air samples, with mean values of 0.015 and 0.12 ng m− 3, respectively, except for one sample where the BDE#47 concentration was below the limit of detection (< 0.17 ng m− 3). BDE#209 was found in one of the five air samples at a concentration of 0.26 ng m− 3. DeBDethane was also detected in one sample, in which the BDE#209 level was below LOD (< 0.021 ng m− 3), at a level of 0.023 ng m− 3. All the target compounds were found in the sedimentary dust samples at levels from 0.51 to 1600 ng g− 1, the highest concentration representing BDE#209. The most abundant components in plasma, air and dust were BDE#47, #99 and #209. In the plasma samples BDE#207 and #206 were also present at similar concentrations as BDE#47. In the sedimentary dust samples, DeBDethane was also among the most abundant BFRs. A positive relationship was found for the sumBDE concentrations in dust and plasma, although the relationship was strongly dependent on one of the five observations. BFR levels in dust and air were not dependent on the house characteristics such as living area, floor material or number of electronic devices.

Place, publisher, year, edition, pages
2007. Vol. 33, no 1, p. 62-69
National Category
Chemical Sciences Environmental Sciences
Research subject
Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-3146DOI: 10.1016/j.envint.2006.06.025OAI: oai:DiVA.org:oru-3146DiVA, id: diva2:137133
Available from: 2006-10-13 Created: 2006-10-13 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Levels of brominated flame retardants in humans and their environment: occupational and home exposure
Open this publication in new window or tab >>Levels of brominated flame retardants in humans and their environment: occupational and home exposure
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Plasma from workers at an electronic dismantling plant were analysed for tri- to heptaBDEs (brominated diphenyl ethers), during 18 months. The different exposed groups showed concentrations ranging from 0.06to 2.8 ng g-1 (l.w.). Only BDE #153 and #183 showed elevated levels compared to the general population in Sweden. The levels in the workers were approximately one order of magnitude higher. No clear trend of increased BDE levels was seen during the study period, nor was there a reduction of the plasma concentration during and after the vacation.

Air levels of tri- to decaBDEs, BTBPE (1,2-bis(2,4,6-tribromophenoxy)-ethane) and DeBDethane (1,2-bis(pentabromophenyl)ethane) ranging from 0.082 to 370 ng m-3 were determined at the same electronic dismantling facility. A comparison was made to the levels reported in this facility before an increase of the production volume. The levels of tri- to hexaBDEs, the main compounds in the commercial PentaBDE mixture, were very similar 2001-02 and 2005. Hepta- to decaBDEs, which are the main components in the Octa- and DecaBDE mixtures, were about three to five times higher in 2005 than in 2001-02. The mean level for BTBPE was two times higher 2001-02 while the concentration of DeBDethane measured 73 times higher 2005.

Levels of tri- to decaBDEs, BTBPE and DeBDethane were also determined in air, dust and human plasma from households. The levels of the individual BDEs in the plasma samples varied between <0.41 ng g-1 (l.w.) to 17 ng g-1 (l.w). BDE #28 and #47 were present in all air samples, with mean values of 0.015 and 0.12 ng m-3, respectively. BDE #209 was only found in one air sample at a concentration above the detection limit. DeBDethane was detected in only one sample, at a level of 0.023 ng m-3. All the analytes were found in the dust samples at levels ranging from 0.51 to 1600 ng g-1, the highest concentrations were found for BDE #209. DeBDethane was among the most abundant BFRs in the dust at a mean concentration of 47 ng g-1. The concentrations of the sumBDE showed a positive relationship in dust and plasma.

Eggs from Northern fulmars (Fulmarus glacialis) in the Faroe Islands were sampled for BFRs to establish the levels in remote regions. . The content of tri- to heptaBDEs, BDE #209 and BTBPE were determined in nine samples in concentrations ranging from non-detectable (< 0.02 ng g−1 l.w.) to 7 ng g−1(l.w.). BTBPE was detected in eight samples at a mean level of 0.11 ng g−1 (l.w).

All work included substantial method development and adaption of existing methods. Validation of a solid phase extraction (SPE) method to analyse tri- to heptabrominated diphenyl ethers in human plasma was performed. The SPE extraction method was found to be faster and less solvent- and sample-demanding, compared to the previously used open column extraction based method.

Place, publisher, year, edition, pages
Örebro: Örebro universitetsbibliotek, 2006. p. 75
Series
Örebro Studies in Chemistry, ISSN 1651-4270 ; 7
Keyword
PBDE, BTBPE, DeBDethane, plasma, air, dust, Northern fulmar, egg, household, occupational exposure
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
urn:nbn:se:oru:diva-694 (URN)91-7668-499-7 (ISBN)
Public defence
2006-11-03, Hörsal P1, Prismahuset, Örebro universitet, Örebro, 13:00
Opponent
Supervisors
Available from: 2006-10-13 Created: 2006-10-13 Last updated: 2017-10-18Bibliographically approved

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Karlsson, MarieJulander, Annelivan Bavel, Bert

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