Radiation Exposure to Workers and Villagers in and Around Some Quarry Sites in Ogun State of Nigeria

摘要

In this research, the authors employed radiation detection methods to examine the radiation intensity or exposure at 5 quarry sites and their respective neighborhood villages in Ogun State of Nigeria. The highest annual dose rate or exposure of 49.1 μSv year 1 was recorded at Equation Limited (Q3) in Obafemi Owode Local Government area in Ogun State of Nigeria. However, this result (49.1 μSv year 1) and others from the remaining locations or sites are smaller than the world average of 70 μSv year 1 but recommended that workers at quarry sites should always put on masks to eliminate or reduce the amount of radioactive inhalation. Regular comprehensive monitoring of radiation level of each worker by putting on Thermo Luminescent Dosimeters (TLDs) which could be read and interpreted must be encouraged.