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Human Exposure to Chlorinated Paraffins via Inhalation and Dust Ingestion in a Norwegian Cohort.
Yuan, Bo; Tay, Joo Hui; Padilla-Sánchez, Juan Antonio; Papadopoulou, Eleni; Haug, Line Småstuen; de Wit, Cynthia A.
Afiliação
  • Yuan B; Department of Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden.
  • Tay JH; Department of Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden.
  • Padilla-Sánchez JA; Section for Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, NO-0213 Oslo, Norway.
  • Papadopoulou E; Section for Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, NO-0213 Oslo, Norway.
  • Haug LS; Section for Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, NO-0213 Oslo, Norway.
  • de Wit CA; Department of Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden.
Environ Sci Technol ; 55(2): 1145-1154, 2021 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-33400865
ABSTRACT
Very-short- (vSCCPs, C6-9), short- (SCCPs, C10-13), medium- (MCCPs, C14-17), and long-chain chlorinated paraffins (LCCPs, C>17) were analyzed in indoor air and dust collected from the living rooms and personal 24 h air of 61 adults from a Norwegian cohort. Relatively volatile CPs, i.e., vSCCPs and SCCPs, showed a greater tendency to partition from settled indoor dust to paired stationary indoor air from the same living rooms than MCCPs and LCCPs, with median logarithmic dust-air partition ratios of 1.3, 2.9, 4.1, and 5.4, respectively. Using the stationary indoor air and settled indoor dust concentrations, the combined median daily exposures to vSCCPs, SCCPs, MCCPs, and LCCPs were estimated to be 0.074, 2.7, 0.93, and 0.095 ng/kg bw/d, respectively. Inhalation was the predominant exposure pathway for vSCCPs (median 99%) and SCCPs (59%), while dust ingestion was the predominant exposure pathway for MCCPs (75%) and LCCPs (95%). The estimated inhalation exposure to total CPs was ∼ 5 times higher when the personal 24 h air results were used rather than the corresponding stationary indoor air results in 13 paired samples, indicating that exposure situations other than living rooms contributed significantly to the overall personal exposure. The 95th percentile exposure for CPs did not exceed the reference dose.
Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Tipo de estudo: Estudo observacional Idioma: Inglês Revista: Environ Sci Technol Ano de publicação: 2021 Tipo de documento: Artigo País de afiliação: Suécia

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Tipo de estudo: Estudo observacional Idioma: Inglês Revista: Environ Sci Technol Ano de publicação: 2021 Tipo de documento: Artigo País de afiliação: Suécia
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