Estimation of the rate of VOC emissions from solvent-based indoor coating materials based on product formulation

Two computational methods are proposed for estimation of the emission rate of volatile organic compounds (VOCs) from solvent-based indoor coating materials based on the knowledge of product formulation. The first method utilizes two previously developed mass transfer models with two key parameters –...

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Bibliographic Details
Published in:Atmospheric environment (1994) 1999-04, Vol.33 (8), p.1205-1215
Main Authors: Guo, Zhishi, Chang, John C.S., Sparks, Leslie E., Fortmann, Roy C.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Buildings. Public works
Coating materials
Emissions
Exact sciences and technology
Indoor air
Indoor pollution and occupational exposure
Pollution
Pollution indoor buildings
Volatile organic compounds
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Summary:Two computational methods are proposed for estimation of the emission rate of volatile organic compounds (VOCs) from solvent-based indoor coating materials based on the knowledge of product formulation. The first method utilizes two previously developed mass transfer models with two key parameters – the total vapor pressure and the average molecular weight for total volatile organic compounds (TVOCs) – being estimated based on the VOC contents in the product. The second method is based on a simple, first-order decay model with its parameters being estimated from the properties of both the source and the environment. All the model parameters can be readily obtained. Detailed procedures for computing the key parameters are described by using examples. The predictive errors were evaluated with small chamber data, and the results were satisfactory. Thus, the proposed methods provide a way to predict the VOC emissions in the indoor environment without having to conduct costly chamber testing. The two proposed methods work for both TVOCs and individual VOCs. Pros and cons for each method are discussed.
ISSN:1352-2310
1873-2844
DOI:10.1016/S1352-2310(98)00280-5