Blackwell Publishing Journal Backfiles 1879-2005
Architecture, Civil Engineering, Surveying
The Multichamber Consumer Exposure Model (MCCEM) is a user-friendly computer program that can be used to estimate indoor air concentrations and occupant inhalation exposures for chemicals released from products, materials, furnishings or appliances in structures such as residences. Among the major features of MCCEM are flexibility in running the model for durations from one hour to one year, a library of infiltration and interzonal airflow measurements for several hundred U.S. residences, a spreadsheet for input of time-varying emission rates, the ability to estimate inhalation exposure, and options for Monte Carlo simulation and sensitivity analysis. An illustrative application is given whereby assumptions concerning the emission profile and the number of chambers to be modeled are examined for impact on exposure estimates. Discussion is provided on the importance of model validation and an approach to validation is given for the illustrative application.
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