Moved into new (to us, built in 1980) house 2 years ago. Installed an Airthings radon meter a year ago. Levels get up to 400 Bq/m3 when all the windows are closed. Finally had a radon mitigation system installed. Will hopefully get to much safer level below 100 Bq/m3.

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[–] [S] 2 points 2 weeks ago* (last edited 2 weeks ago) (1 child)

Looks like it’s a considerably bigger problem in Canada compared to Germany.

https://evictradon.org/radon/radon-in-canada/

Looks like Poland is actually the worst in the world.

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