Evaluation of Natural Radioactivity and Radiation Hazards of Soils around Petroleum Products Marketing Company using Gamma Ray Spectrometry

This study aimed at evaluating natural radioactivity and radiation hazards of soils around a petroleum product marketing company due to anthropogenic influences using gamma ray spectrometry. Top (5 cm deep) were collected from diverse locations inside the premises Company standard analytical technique, while control samples acquired approximately 200 m area. Mean activity concentrations radionuclides in test 89.36 Bq/kg for 40K, 92.1 238U 10.95 232Th, which are more than that with statistically significant differences. Assessment radiological levels oil-contaminated done internal hazard index, external annual gonadal dose equivalent, effective rate, radium total absorbed rate representative level index (IŸ). The results showed mean equivalent soil (0.46 mSv/yr) fell below permissive limit (1.0 mSv/yr). (0.55 Bq/kg) (0.30 values less minimum permissible (1.0). value (358.46 µSvy-1) was close world average 300 µSvy-1, (0.78) also unity. Estimated (114.65 370 Bq/kg, samples. Though exhibited low radiation, however lengthy term exposure may pose an inherent cancerous ill-health. It is vital repeat this investigation periodically avert precarious effects influences; indiscriminate discarding oils should be discouraged.
 Keywords: Gamma spectrometry; radionuclide; refined products; risk assessment; soil.