Assessment of Radiological Health Risks in Agricultural Soil Samples within Bitumen Belt of Ondo Sta

The feature of agricultural soils inside the bitumen deposit districts of Ondo State, Nigeria was investigated in consideration of providing valuable information on the inside look parameters associated with the adulteration of the sites by bitumen deposit. And to supply baseline dossier required for future radiological impact estimate of the environment all the while the development of the water. Naturally occurring radionuclides (238U, 232Th and 40K) present in land soil samples collected inside the bitumen belt of Ondo State, Nigeria was measured utilizing gamma spectroscopy. The radiological health risk limits; absorbed application rate (D), Annual Gonadal Equivalent Dose (AGED), External Hazard Index (Hex), Internal Hazard Index (Hin) and Excess Lifetime Cancer Risk (ELCR) were estimated utilizing standard analytical arrangement. The estimated results of D categorized from 3.56 nGyh-1 (Omotosho) to 10.55 nGyh-1 (Igbotako) with a mean worth of 5.83±2.19 nGyh-1. While AGED ranged from 24.07 mSvy-1 (Omotosho) to 70.72 mSvy-1 (Igbotako) accompanying a mean value of 40.39±14.26 mSvy-1. Also, Hex changes between 0.021 (Omotosho) to 0.063 (Igbotako) with a mean advantage of 0.034±0.01. Similarly, Hin ranged from 0.030 (Omotosho) to 0.089 (Igbotako) accompanying a mean value of 0.047±0.02. However, the supposed ELCR were much lower than the reliable limit of 0.29 x 10-3, which desires that even though skilled is little radiation risk guide exposure to normal radionuclides, using the studied soil concede possibility not immediately pose a strength risk to the locals. However, extended exposure grant permission result in radiologically inferred health questions.

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