Linked Life Data

16201626

Source:http://linkedlifedata.com/resource/pubmed/id/16201626

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
18
pubmed:dateCreated
2005-10-5
pubmed:abstractText
Polybrominated diphenyl ethers (PBDEs) are widely used as additive flame retardants in plastics, soft furnishings, electrical and electronic equipment, and insulation in the indoor environment, and may be released indoors via volatilization or as dusts. The penta-and octa-brominated mixes are now banned in most parts of Europe, and phasing out of their use has recently begun in North America. This study follows a previous investigation into indoor air levels of PBDEs. House dust was analyzed from the family vacuum cleaners of 68 of the same 74 randomly selected homes, in Ottawa, Canada during the winter of 2002-2003. PBDEs, comprising on average 42% BDE-209, were found in all samples. The levels were log-normally distributed with a geometric mean sigmaPBDE of 2000 ng g(-1), and a median of 1800 ng g(-1) dust. The levels in dust did not correlate with questionnaire information on house characteristics. Correlations were found between pentamix congener levels in dust and in air from the same homes, but not for congeners of the more highly brominated mixes. Exposure scenarios are presented for mean and high dust ingestion rates, and compared against exposures from other pathways, for both adults and toddlers (6 months-2 years). Assuming a mean dust ingestion rate and median dust and air concentrations, adults would be exposed to ca. 7.5 ng sigmaPBDE d(-1) via the dust ingestion pathway, which represents approximately 14% of total daily exposure when compared to diet (82%) and inhalation (4%). However, for toddlers the equivalent intakes would be 99 ng d(-1), representing 80% of their daily PBDE exposure. At high dust ingestion rates these values increase to 180 ng d(-1) (80% daily intake) for adults and 360 ng d(-1) (89% daily intake) for toddlers. The data give a clearer picture of sources of PBDE exposure in the home environment and suggest that dust could be a significant exposure pathway for some individuals, particularly children.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0013-936X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7027-35
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:16201626-Adult, pubmed-meshheading:16201626-Age Factors, pubmed-meshheading:16201626-Air, pubmed-meshheading:16201626-Air Pollutants, pubmed-meshheading:16201626-Air Pollution, Indoor, pubmed-meshheading:16201626-Bromine, pubmed-meshheading:16201626-Canada, pubmed-meshheading:16201626-Child, Preschool, pubmed-meshheading:16201626-Environmental Exposure, pubmed-meshheading:16201626-Environmental Monitoring, pubmed-meshheading:16201626-Environmental Pollutants, pubmed-meshheading:16201626-Floors and Floorcoverings, pubmed-meshheading:16201626-Halogenated Diphenyl Ethers, pubmed-meshheading:16201626-Housing, pubmed-meshheading:16201626-Humans, pubmed-meshheading:16201626-Infant, pubmed-meshheading:16201626-Inhalation Exposure, pubmed-meshheading:16201626-Ontario, pubmed-meshheading:16201626-Phenyl Ethers, pubmed-meshheading:16201626-Polybrominated Biphenyls, pubmed-meshheading:16201626-Vacuum
pubmed:year
2005
pubmed:articleTitle
Polybrominated diphenyl ethers in indoor dust in Ottawa, Canada: implications for sources and exposure.
pubmed:affiliation
Air Quality Research Branch, Meteorological Service of Canada, Environment Canada, 4905 Dufferin Street, Toronto, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't