Evaluation of Potential Exposure to Formaldehyde Air Emissions from a Washing Machine Using the IAQX Model
| Autor: | David McCready, Donald D. Fontaine, Scott M. Arnold |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Human and Ecological Risk Assessment: An International Journal. 18:832-854 |
| ISSN: | 1549-7860 1080-7039 |
| DOI: | 10.1080/10807039.2012.688709 |
| Popis: | Consumers may be exposed to formaldehyde during the use of liquid laundry detergent containing a preservative. The primary objective of this analysis was to present an approach to predict formaldehyde air emissions from a washing machine and the subsequent vapor concentrations in the laundry room air using the U.S. Environmental Protection Agency's (USEPA's) Simulation Tool Kit for Indoor Air Quality and Inhalation Exposure, referred to as the IAQX model. A second objective was to identify key model input parameters for formaldehyde. This analysis recommends use of the IAQX emission Model 52 because it provided the best estimates by correlating the formaldehyde evaporation to the Henry's law constant and to the overall gas-phase mass transfer coefficient that was based on washing machine experimental results. The mass balance estimated that 99.7% of the initial formaldehyde mass in the washing machine was discharged down the drain with the wash water and the rest of the formaldehyde was emitted t... |
| Databáze: | OpenAIRE |
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