Seasonal variations of indoor radon concentrations have been studied in 70 single-family houses selected according to the type of sub-structure and the type of soil underneath the house. Five categories of sub-structure were included - slab-on-grade, crawl space, basement, and combinations of basement with slab-on-grade or crawl space. Half of the houses are located on clayey till and the other half on glaciofluvial gravel. In each house radon was measured in a living room and a bedroom, in the basement if present, and in the crawl space if present and accessible. The measurements were made with track detectors on a quarterly basis throughout a year. For living rooms and bedrooms the seasonal variations range from being highly significant for the slab-on-grade houses to being insignificant for the crawl space houses. For basements and crawl spaces the geometric mean radon concentrations do not show significant seasonal variations.
|Journal||Radiation Protection Dosimetry|
|Publication status||Published - 1992|
|Event||5th International Symposium on Natural Radiation - Salzburg, Austria|
Duration: 22 Sep 1991 → 28 Sep 1991
Conference number: 5
|Conference||5th International Symposium on Natural Radiation|
|Period||22/09/1991 → 28/09/1991|