Measurement of radon indoors - an evaluation of measurements. Radonmatning inomhus.

Reports on radon measurements made in the municipalities of Uppsala, Sodertalje and Tyreso. Uses about 7600 kodak plastic films in private houses and bloks of flats. About 3-14% of private residences have concentrations above 200 Bq/m3, and 0.5% blocks of flats. 8-68% of private residences and 57-83% of blocks of flats have less than 70 Bq/m3 of radon.