Learn about radon, exactly how it impacts lung wellness as well as what you can do about it. The only dose-effect relationship offered are those of miners associates (for a lot higher exposures), revealed to radon. Researches of Hiroshima and also Nagasaki survivors are much less interesting (the direct exposure to radon is persistent, localized, as well as the ionizing radiations are alpha rays). Additionally, the cigarette smoking is a significant confounding factor in all miners' research studies. A debatable epidemiological study, all of a sudden revealing decreased cancer threat vs. radon residential direct exposure (5 pCi/L ≈ 200 Bq/m3).