Activity concentrations of 238U and 232Th in some soil and fertilizer samples using passive and active techniques

Uranium and thorium concentrations in some soil and fertilizer samples were determined using passive technique with CR-39 and LR-115 polymeric nuclear track detectors, whereas the fertilizer samples were measured using active technique with passive technique. The two different techniques have been used in order to ensure and compare between the obtained results. The main purpose of the present investigation is to assess the activity concentration of 238U and 232Th in soil of particular regions and measure the pollution due to the production plant of complex fertilizers. From the obtained data we can conclude that there is no radioactive healthy hazard for human and living beings in the selected area.