Estimation of radon-gas, uranium-238 concentrations in the surface soil samples and alpha risk index at many Northern Iraqi Refineries

Radon gas concentrations and uranium-238 concentration in soil samples at the surface (depth = 15 cm) were determined for fifteen three refineries (Al-Kasak, Al-Qayarah, Baiji) using “sealed can technique”. CR-39 solid-state nuclear pathway detectors. The of radon Al-kasak refinery ranged from (1509 to 8323.2 Bq/m3) with an average (4916.1 Bq/m3), exhalation rate (1110.3 612.7 (861.5 Bq/m3). effective activity (ARn222) are (15.82 8.84 Bq/kg) (12.33 Bq/kg).In a Al-Qayara refinery, (11709.6 10281 (10995.3 756.3 (808.9 (12.28 10.756 averaged (11.518 Baiji (13501 5062 (9281.5 (992 372 (682 Bq/m3),...