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IMPACT OF AN OZONE GENERATOR AIR CLEANER ON STYRENE CONCENTRATIONS IN AN INDOOR AIR QUALITY RESEARCH CHAMBER
Citation:
Mason*, M A., L E. Sparks*, K A. Krebs*, AND X. Liu. IMPACT OF AN OZONE GENERATOR AIR CLEANER ON STYRENE CONCENTRATIONS IN AN INDOOR AIR QUALITY RESEARCH CHAMBER. Presented at Indoor Air '02, Monterey, CA, 06/30-07/02-02.
Description:
The paper gives results of an investigation of the impact of an ozone generator air cleaner on vapor-phase styrene concentrations in a full-scale indoor air quality test chamber. The time history of the concentrations of styrene and ozone is well predicted by a simulation model using the reaction rate constant for styrene/ozone that has been determined, atmospheric pressure, and room temperature. In three tests, the reaction products, formaldehyde and benzaldehyde, were produced in ratios of 0.64 + 0.22 and 0.82 + 0.19 mole (average + standard deviation), respectively, for each mole of styrene consumed. Two tests were conducted in near-static- chamber conditions, and one test was conducted at 1 air exchange per hour (ACH). The test results demonstrate that, where styrene is present, ozone generator air cleaners increase indoor exposure to formaldehyde and other oxygenated organic compounds as well as to ozone and nitrogen dioxide.