Abstract
A major concern when considering respiratory disorders that harm the health of the city dweller is the concentration of air pollutants in his living environments and the amount of time he spends there. The proportion of time he spends indoor in a 24-hour day has risen to 80-90%, so it is especially important to know how much of the pollutants that are generated indoors he is exposed to.
It was from these viewpoints that I investigated the actual conditions of air pollution in buildings and houses and the indoor/outdoor ratio of pollutants generated.
The results were as follows: The amount of dust was higher in buildings than outdoors. The contribution made by tobacco smokers was also high. The concentration of NO2 was lower in office buildings than outdoors but higher in restaurant kitchens and underground rooms. The concentration of NO2 and NO in houses was higher than outdoors, due to the use of winter heating equipment.
The concentration of HCHO was higher in both buildings and houses than outdoors. It was especially high in newly-constructed houses, which show the high exposure that housewives are subjected to.
