Environmental impacts and implications of the Radon-222, and it's urgency attention in Iran

Appraisal of the natural radon gas effects on lung cancer, and its applications for earthquake prediction and uranium, petroleum, and ground water exploration are well known in many advanced countries, However, it has been almost neglected in Iran. So, radon production mechanics in soils and rocks, radon and lung cancer, and radon hazard mitigation are reviewed. In addition, the noted and applied aspects of radon are discussed, hoping to show advantages of investigation in this field of study to be carried out in Iran