Secondary Aerosol Pollution by a Home Insecticide under Ozone Exposure

Title
Secondary Aerosol Pollution by a Home Insecticide under Ozone Exposure
Authors
타이프엉부김선화이승복심상규배귀남손종렬
Keywords
home insecticide; ozone; volatile organic compound; secondary air pollution; nanoparticle
Issue Date
2012-06
Publisher
한국실내환경학회지
Citation
VOL 9, NO 2, 97-112
Abstract
Secondary air pollution can be caused by aerosol formation through reactions of ozone and volatile organic compounds (VOCs) emitted from household products used in the indoor environment. In this study, we investigated the potential for aerosol production during the reactions of ozone and VOCs emitted from a home insecticide, a popular commercial product extracted from natural ingredients, in a 1-m3 reaction chamber. The major chemical component of the test product was prallethrin, which has very high efficacy of mosquito and housefly elimination. Toluene, α-pinene, cymene, d-limonene, α -terpinene, and α-thujone were also identified as constituents of the insecticide. Injected ozone concentrations of 50, 100, and 200 ppb generated particle mass concentrations, corrected for wall loss and air exchange loss, of 7.3, 33.1, and 40.0 μg/m3, respectively, after a 4-h reaction time. These concentrations are lower than those generated by an air freshener in a previous study under the same experimental conditions. It was concluded that the home insecticide tested had the potential to initiate secondary aerosol formation under ozone exposure due to the biogenic VOCs it contained.
URI
http://pubs.kist.re.kr/handle/201004/42849
ISSN
17384125
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KIST Publication > Article
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