Correlating health effect with indoor air quality in kindergartens

In 24 kindergartens the relation between the presence of readily visible, man-made mineral-fiber products in the ceilings and the presence/frequency of symptoms or diseases and the correlations between complaints of symptoms or disease and the concentration of man-made mineral-fibres in the indoor environment was investigated. A combination of traditional epidemiological technique and a technical analysis of a number of indoor-air parameters did not support the hypothesis that the presence of readily visible man-made mineral-fiber products in the ceiling should be mainly responsible for the occurrence of symptoms and/or disease related to indoor exposure in kindergartens.