Monitoring of external background radiation level in Asa Dam Industrial area of Ilorin, Kwara State, Nigeria

An external background ionizing radiation study has been carried out within the Asa Dam Industrial Layout of Ilorin in Kwara State. The study was carried out in 5 stations within the industrial area using two Digilert Nuclear Radiation Monitors. The study has revealed that the external background ionizing radiation is averagely 0.0134 mR/hr with a deviation of about 22% which is relatively higher than the standard background radiation of 0.011 mR/hr. This result suggests the possibility of the presence of radionuclide sources in the environment. Journal of Applied Sciences and Environmental Management Vol. 9(3) 2005: 91-94