Seasonal variations of radon concentrations in single-family houses with different sub-structures

B. Majborn

    Research output: Contribution to journalConference articleResearch


    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.
    Original languageEnglish
    JournalRadiation Protection Dosimetry
    Issue number1-4
    Pages (from-to)443-447
    Publication statusPublished - 1992
    Event5th International Symposium on Natural Radiation - Salzburg, Austria
    Duration: 22 Sep 199128 Sep 1991
    Conference number: 5


    Conference5th International Symposium on Natural Radiation


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