The risk of lung cancer cells boosts by 16% per 100 Bq/m3 boost in long period of time ordinary radon concentration. The dose-response connection is linear-- as an example, the danger of lung cancer enhances proportionally with increasing radon exposure. Radon is one of the most vital cause of lung cancer after smoking cigarettes. It is estimated that radon triggers between 3-- 14% of all lung cancers in a nation, depending upon the average radon level and the smoking cigarettes prevalence in a nation. Radon escapes easily from the ground into the air, where it decomposes and also generates more contaminated fragments.