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      Occurrence of bisphenol A in indoor dust from two locations in the eastern United States and implications for human exposures.

      Archives of Environmental Contamination and Toxicology
      Adult, Air Pollution, Indoor, analysis, Benzhydryl Compounds, Child, Dust, Environmental Monitoring, Housing, Humans, Kentucky, New York, Phenols

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          Abstract

          Bisphenol A (BPA) is used in the production of polycarbonate plastics and epoxy resins, which are used in many consumer products. Sources of human exposures to BPA include packaged and canned food products, indoor air, and dust ingestion. Information on the relative contributions of the pathways to BPA exposures is limited. In this study, we measured concentrations BPA in indoor dust collected from two locations in the Eastern United States and evaluated the contribution of dust to total BPA exposures. BPA was found in 95% of the dust samples analyzed (n = 56) at concentrations ranging from <0.5 to 10,200 ng/g (mean 843; median 422). The median values for BPA intake by way of the ingestion of dust by adults and toddlers were calculated to be 0.35 and 5.63 ng/kg body weight/day. These estimated exposure doses of BPA through dust ingestion are of the same order of magnitude as the recently reported low concentrations that induced health effects in laboratory animal studies. The contribution of dust to total human BPA intake was estimated to be <1%, however, suggesting that dietary intake is the predominant source of exposures in humans.

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          Author and article information

          Journal
          21221962
          10.1007/s00244-010-9634-y

          Chemistry
          Adult,Air Pollution, Indoor,analysis,Benzhydryl Compounds,Child,Dust,Environmental Monitoring,Housing,Humans,Kentucky,New York,Phenols

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