PMID- 27805623 OWN - NLM STAT- MEDLINE DCOM- 20180205 LR - 20180720 IS - 1559-064X (Electronic) IS - 1559-0631 (Linking) VI - 27 IP - 6 DP - 2017 Nov TI - Dermal absorption of benzo[a]pyrene into human skin from soil: Effect of artificial weathering, concentration, and exposure duration. PG - 610-617 LID - 10.1038/jes.2016.61 [doi] AB - In vitro assessments of (14)C-benzo[a]pyrene (BaP) absorption through human epidermis were conducted with the sub-63-mum fraction of four test soils containing different amounts of organic and black carbon. Soils were artificially weathered for eight weeks and applied to epidermis at nominal BaP concentrations of 3 and 10 mg/kg for 8 or 24 h. Experiments were also conducted at 24 h with unweathered soils and with BaP deposited onto skin from acetone at a comparable chemical load. For the weathered soils, absorption was independent of the amount of organic or black carbon, the mass in the receptor fluid was proportional to exposure duration but independent of concentration, and the mass recovered in the skin after washing was proportional to concentration and independent of exposure time. Results from the weathered and unweathered soils were similar except for the mass recovered in the washed skin, which was lower for the weathered soil only at the higher concentration. We hypothesize that chemical concentrations exceeded the BaP sorption capacity accessible within the artificial weathering timeframe for all soils tested, and that BaP mass in the washed skin was dominated by particles that were not removed by washing. Fluxes into and through skin from soils were lower by an order of magnitude than from acetone-deposited BaP. FAU - Peckham, Trevor K AU - Peckham TK AD - Department of Environmental and Occupational Health Services, School of Public Health, University of Washington, Seattle, WA, USA. FAU - Shirai, Jeffry H AU - Shirai JH AD - Department of Environmental and Occupational Health Services, School of Public Health, University of Washington, Seattle, WA, USA. FAU - Bunge, Annette L AU - Bunge AL AD - Chemical and Biological Engineering Department, Colorado School of Mines, Golden, CO, USA. FAU - Lowney, Yvette W AU - Lowney YW AD - Exponent, Boulder, CO, USA. FAU - Ruby, Michael V AU - Ruby MV AD - Integral Consulting, Louisville, CO, USA. FAU - Kissel, John C AU - Kissel JC AD - Department of Environmental and Occupational Health Services, School of Public Health, University of Washington, Seattle, WA, USA. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20161102 PL - United States TA - J Expo Sci Environ Epidemiol JT - Journal of exposure science & environmental epidemiology JID - 101262796 RN - 0 (Soil Pollutants) RN - 3417WMA06D (Benzo(a)pyrene) SB - IM MH - Benzo(a)pyrene/*analysis/*metabolism MH - Cells, Cultured/metabolism MH - Environmental Exposure/*analysis MH - Environmental Monitoring/methods MH - Humans MH - Skin/*metabolism MH - *Skin Absorption MH - Soil Pollutants/*analysis/*metabolism EDAT- 2016/11/03 06:00 MHDA- 2018/02/06 06:00 CRDT- 2016/11/03 06:00 PHST- 2016/02/26 00:00 [received] PHST- 2016/07/01 00:00 [revised] PHST- 2016/07/05 00:00 [accepted] PHST- 2016/11/03 06:00 [pubmed] PHST- 2018/02/06 06:00 [medline] PHST- 2016/11/03 06:00 [entrez] AID - jes201661 [pii] AID - 10.1038/jes.2016.61 [doi] PST - ppublish SO - J Expo Sci Environ Epidemiol. 2017 Nov;27(6):610-617. doi: 10.1038/jes.2016.61. Epub 2016 Nov 2.