You are here:
DETERMINATION OF SORPTION PARAMETERS FOR 36 VOC/MATERIAL COMBINATIONS
Citation:
CORSI, R. L., N. CRAIN, J. FARDAL, J. LITTLE, AND Y. XU. DETERMINATION OF SORPTION PARAMETERS FOR 36 VOC/MATERIAL COMBINATIONS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-07/035, 2006.
Impact/Purpose:
To inform public
Description:
EPA's Air Pollution Prevention and Control Division is currently investigating sorptive interactions (sink effects) of volatile organic compounds and semi-volatile organic compounds when exposed to common indoor surface materials. The objective is to recommend the best sink models for use in exposure assessment and building protection. The sorptive interactions between gaseous pollutants and indoor materials are a critical component in modeling indoor air quality during either routine or extreme events. This report summarizes the results of the experimentally determined partition and diffusion coefficients for a series of chemical and material combinations. A dual-volume chamber method and a dynamic microbalance method were used to determine the two parameters. Indoor material tested included painted and unpainted gypsum boards, carpet, mortar, vinyl flooring, and polyurethane foam; the chemicals tested included n-butanol, hexanal, ethylbenzene, decane, undecane, dodecane, and tetradecane. This work also demonstrated the advantages and disadvantages of the two test methods used and the need for improving them.