Finding F-0608

“However, the magnitude of the radon-increasing effect (associated with property size) was more than doubled in small towns and village, hamlet and isolated communities (a 37–44% increase in radon between smallest to largest houses) compared to cities (a 17–18% increase in radon between smallest to largest houses).”

Khan Rural communities experience higher radon exposure versus urban areas, potentially due to drilled groundwater well annuli acting as unintended radon gas migration conduits (2024). Scientific reports. Page 4. CKB 5817

Structure

Factor: Radon
Population: residential occupants
Setting: dwelling in a small town or village, CA
Study design: analysis of long-term radon tests in 42,051 Canadian residential properties across 2,034 communities, comparing urban and rural community types with property metrics (building design, floorplan size, construction year) and groundwater well data (class 4)
Effect: difference 37
Sample: 42051 homes
Caveat: the sentence gives a range; the two ends are recorded as two rows

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.