Chances of lung cancer due to radon exposure in Al-Mazar Al-Shamali, Jordan

Abstract Radon ( 222 Rn) levels were determined in Al-Mazar area, northern part of Jordan. Passive diffusion dosimeters (using CR-39) were used indoors in different seasons. The average radon concentration during summer season was about 62 Bq/m 3 (∼1.7 pCi/l which corresponds to 0.017 WL for the equilibrium factor, F =1), while in winter season it was about 81 Bq/m 3 . However, the overall radon average in Al-Mazar is comparable to the radon average in other Jordanian cities. Furthermore, the radon average concentration during the year was about 75 Bq/m 3 (∼2.0 pCi/l which corresponds to about 0.02 WL ). According to these findings, the chances of dying from lung cancer due to exposure, over the lifetime, to 0.02 WL of radon level is about 0.09%.