Monitoring of Background Radiation in Selected Schools in Ota, Ogun State Nigeria by Direct Measurement of Terrestrial Radiation Dose Rate
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Description
Terrestrial radiations are natural types from radionuclides found in rocks, building
materials and soils in an environment. Monitoring of background radiation energy levels in
selected school in Ota, Ogun State Nigeria by direct measurement of terrestrial radiation dose
rate was done. The mean dose rate ranged from 35.4 to 62.34 nGyh-1. The measured mean
values are within world average recommended limits of 59 nGyh-1 except for study location
SC7 with mean dose rate value of 62.34 nGyh-1. On the over all, it can be concluded that the
concentration of NORM (naturally occurring radioactive materials) and radiation dose rate in
an environment is at safe level. Further environmental radiation assessment is recommended to
ascertain the possible sources of background radiation dose rate and exposure, beside terrestrial
radiation sources.
Keywords
Q Science (General), QC Physics