二酸化窒素の個人曝露量に関する研究
都市における主婦を対象とした調査結果
1980 年 15 巻 10 号 p. 418-425
詳細
1980 年 15 巻 10 号 p. 418-425
An attempt was made to determine the factors influencing personal exposure levels of NO2 for housewives living in urban area in two seasons, winter and summer.
NO2 was measured with small passive sampler containing triethanolamine, and samplers were set for 24 hours at three points, they are: near the collar of volunteers (personal exposure level), near the TV in living room (in-door level) and near the porch of their houses (outdoor level).
The subjects recorded the times 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 so on.
There was an apparent increase in personal exposure level in case of unvented heater, although it did not marked increase by using cooking gas appliance.
Through these observations, we concluded that personal exposure lev el of NO2 was strongly related to indoor NO2 level, and factors influencing indoor NO2 level seemed different between in winter and in summer, the biggest one was indoor pollution in the former and in the latter that was the level of outdoor environment.
