The risk of lung cancer cells boosts by 16% per 100 Bq/m3 boost in long time average radon concentration. The dose-response relationship is straight-- for instance, the risk of lung cancer increases proportionally with boosting radon exposure. Radon is the most essential root cause of lung cancer after smoking cigarettes. It is approximated that radon causes in between 3-- 14% of all lung cancers in a nation, depending on the typical radon level and the cigarette smoking prevalence in a nation. Radon runs away quickly from the ground right into the air, where it decomposes and also produces more radioactive bits.