Understanding Emissions from Indoor Sources

Of these factors, source characteristics, particularly characteristics of build- 

Alternatively, when there are multiple decay processes, the following equation is useful  

Another approach that is commonly used to evaluate the emission rates of VOCs in indoor microenvironments is to estimate an area-specific emission rate (SER). This approach assumes that VOCs are homogeneously mixed in the environment and that SER can be calculated with the following equation [10]  

Van Winkle and Scheff [63] used a variant of this equation to show that indoor VOCs have predominantly indoor sources, while Hodgson et al. [39] reported the SER values for a wide range of VOCs in manufactured and site-built homes in the USA. As expected, many of the VOCs monitored by Hodgson et al. [39] showed decreased emission rates with the age of the building. 

Understanding the Interaction of VOCs with Indoor Materials 

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