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Radon sub-slab 10mil vapor barrier and radon barrier
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New radon map of US finds 25% of Americans are in high risk cancer-causing radon hotspots

...for the production of highly-accurate radon maps of the US with a mean absolute error of 22.6 Bq/m³ for zip-code-level observations. It also provided estimates for areas lacking direct measurements by leveraging the known predictor variables for those regions. Find radon testers and radon mitigation products here  Rad...