238U and 232 Th concentrations in various potable waters in Morocco and resulting annual equivalent doses for the population

Summary The ²³⁸U and ²³² Th concentrations were measured in various potable water samples collected from various cities in Morocco using CR-39 and LR-115 type II solid state nuclear track detectors (SSNTDs). The measured ²³⁸U and ²³² Th concentrations ranged from 0.37±0.02 to 13.60±0.97 mBq ^. l^-1 and 0.33±0.02 to 7.10±0.49 mBq ^. l^-1, respectively. Alpha-activities due to annual ²³⁸U and ²³² Th intakes were assessed in various compartments of the human body of adult members of the Moroccan population using ICRP biokinetic models. The equivalent doses due to annual intakes of ²³⁸U and ²³² Th were evaluated. The influence of the target tissue mass and the activities of ²³⁸U and ²³² Th on the annual committed equivalent doses in the compartments of the human body was investigated.