Total reliance onquarry products as construction materials has prompted commercial quarryactivities globally. However, potential risks introduced by radiation exposureto quarries in two different locations in Ondo State, Nigeria were assessed toevaluate the background radiation and distribution of naturally occurringradionuclides associated with these areas. A ground radiometric mapping ofeleven traverses across the two quarry sites was carried out using Gamma rayspectrometer. Naturally occurring radionuclides 238U, 232Thand 40K in natural quarried materials of coarse rock aggregates andsoil samples collected at a maximum depth of 2 m and up to 500 m away from thequarry sites were measured using gamma spectrometry method. Spectrometric datawere processed... and presented in form of radiometric maps showing thedistribution of radiation level in each location. Results show that activityconcentrations varied from one location to another. The radiation level in therecently quarried coarse rock aggregates (QF1 and QF2) (372 cps and 382 cps)are higher than the previously quarried coarse rock aggregates (QP1 and QP2)(365 cps and 377 cps) of the quarry sites. Activity concentrations in soils arein the order 232Th < 238U < 40K. Themean radioactivity concentration values of 232Th, 238Uand 40K are 0.0027±0.0003 Bq/kg and 0.0036±0.00036 Bq/kg,0.028±0.0012 Bq/kg and 0.026±0.0012 Bq/kg and 47.45±0.0313 Bq/kg and69.42±0.0313 Bq/kg respectively for soils within the quarries of Locations 1and 2. At 500 m away from the quarry sites, the mean values are 0.0008±0.75Bq/kg and 0.0049±0.0004 Bq/kg, 0.020±0.0012 Bq/kg and 0.052±0.0012 Bq/kg and41.54±0.0313 Bq/kg and 200.32±0.0313 Bq/kg respectively for the quarries. Theradiological hazard indices calculated were used to access the healthimplication of exposure to rock aggregates and soil of the study areas. Thevalues obtained when compared with their corresponding world permissible valueswere found to be below the internationally recommended values. Therefore, thelevel of radiation and interaction with the rock aggregates and soils do notexpose the workers and people within and around the quarries to health problem.Hence, the quarry products can be used as building material for housing androad constructions.