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Indoor and Built Environment
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Material Emission Parameters Obtained Through Regression

G. He

Department of Civil, Architectural, and Environmental Engineering, University of Miami

X. Yang

Department of Civil, Architectural, and Environmental Engineering, University of Miami, xudongy{at}miami.edu

C. Y. Shaw

National Research Council of Canada, Institute for Research in Construction, Indoor Environment Program, Ottawa, Ontario, Canada

Diffusion coefficients (D) and partition coefficients (K) of volatile organic compounds (VOCs) from 20 dry building materials were obtained by fitting the predictions using a simplified diffusion model with small-scale chamber data. The materials analysed included 6 carpets, 3 particle boards, 3 plywood boards, 3 gypsum boards, 2 orient stranded boards, 2 acoustic ceiling tiles and 1 under pad. The types of VOCs studied included alkanes, alkenes, alkynes and benzene group compounds, with carbon number ranging from 1 to 15. The regression results include the optimal values and a sensitivity range of D and K. For the 4 alkanes emitted from 6 different carpets, a correlation trend was observed between the D, K and VOC properties (molecular weight and vapour pressure). However, the emission parameters in general are suggested to be related to both the molecular structure of compounds and material properties.

Key Words: Volatile organic compounds • Diffusion coefficient • Partition coefficient • Modelling

Indoor and Built Environment, Vol. 14, No. 1, 59-68 (2005)
DOI: 10.1177/1420326X05050347
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