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KMID : 0386819940040020046
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Journal of the Institute of Health Environmental Sciences
1994 Volume.4 No. 2 p.46 ~ p.54
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Studies on Indoor and Personal Exposure Level of Nitrogen Dioxide in Korea and Japan
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Abstract
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An attempt was made to determine the factors influencing personal exposure levels of NO2 for housewives living in urban area in Korea and Japan.
NO2 was measured with small passive sampler containing Triethanolamine, and samplers were set for 24 hours at volunteers (personal exposure level), near the TV in living room (indoor level) and near the porch of their houses (outdoor level).
The subjects recorded the time of spending cooking using gas appliances, using kitchen ventilator and unvented oil or gas heater, total of minutes of opening window, going out of home and room.
There was an apparent increase in personal exposure level in the case of the unvented heater and also and increased by looking on a gas rage in Korea and Japan.
Through these observations, we concluded that personal exposure level of NO2 was strongly related to indoor NO2 level, and the factors influencing indoor NO2 level seemed different between in Korea and Japan. The biggest factor in the former was
indoor
pollution and in the latter, was the level of outdoor environment.
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