Finding F-1650

“In the cold season, older buildings (> 15 years) had a significantly higher mean radon concentration of 142.29 ± 123.86 Bq/m2 (95% CI 121.05–163.54) compared to newer buildings (< 15 years), which averaged 105.76 ± 103.64 Bq/m2 (95% CI 91.66–119.86) (t = − 3.085, df = 341, p = 0.002).”

Seasonal variation and structural influences on indoor radon exposure in residential buildings of (2025). Sci Rep. Page 7. CKB 1410

Structure

Factor: Radon
Setting: apartment (cold season)
Study design: cross-sectional survey of apartments: indoor radon measured in the cold and the warm season and related to the floor level, the age of the building and the height above ground (class 4)
Effect: difference 142.29 (121.05–163.54)
Flags: unit-suspect
Caveat: the unit is printed as Bq/m2 throughout the paper, which cannot be a radon concentration; it is recorded as printed

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.