Abstract
This study assesses the radiological hazards of soils from dumpsites by measuring the activity concentrations of 238U, 232Th, and 40K using a NaI(Tl) detector system on twenty soil samples collected from waste dumpsites along Ore, Idepe, Market, and Doctors roads Okitipupa, Ondo State. The average activity concentrations of 238U, 232Th, and 40K in soil samples from waste dumpsites were as follows: Ore Road (18.44 ± 7.28, 10.17 ± 3.47, 42.34 ± 18.29 Bq.kg−1), Idepe Road (123.58 ± 19.72, 28.24 ± 4.26, 373.26 ± 14.33 Bq.kg−1), Market Road (55.15 ± 2.71, 14.28 ± 3.31, 303.22 ± 13.96 Bq.kg−1), and Doctors Road (89.49 ± 10.41, 19.04 ± 3.90, 215.35 ± 25.62 Bq.kg−1). While 232Th and 40K levels were below global averages, 238U exceeded 33 Bq.kg−1, indicating potential health risks. The study calculated radiological risk indices, indicating low potential radiation exposure while emphasizing the need for ongoing monitoring due to long-term implications, providing valuable insights for improving waste management policies and public health interventions in Nigeria and similar regions worldwide.
Published Version
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