Transdermal uptake of benzophenone-3 from clothing: comparison of human participant results to model predictions
Models of transdermal uptake of chemicals from clothing have been developed, but not compared with recent human subject experiments. In a well-characterized experiment, participants wore t-shirts pre-dosed with benzophenone-3 (BP-3) and BP-3 and a metabolite were monitored in urine voids. Objective Compare a dynamic model of transdermal uptake from clothing to results of the human subject experiment . Methods The model simulating dynamic transdermal uptake from clothing was coupled with direct measurements of the gas phase concentration of benzophenone -3 (BP-3) near the surface of clothing to simulate the conditions of the human subject experiment. Results The base-case model results were consistent with the those reported for human subjects. The results were moderately sensitive to parameters such as the diffusivity in the stratum corneum (SC), the SC thickness, and SC-air partition coefficient. The model predictions were most sensitive to the clothing fit. Tighter clothi