2014•Journal of Radiation Research and Applied SciencesOpen access
Natural radioactivity assessment of a phosphate fertilizer plant area
Saroj Kumar Sahu, P.Y. Ajmal, Rahul Chindhu Bhangare, Mahesh Tiwari, G.G. Pandit
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Abstract
Rock phosphate ore processing and disposal of phosphogypsum contribute to enhanced levels of natural radionuclides in the environment. The concentration of naturally occurring radionuclides in soil, rock phosphate and phosphogypsum samples collected around a phosphate fertilizer plant were determined. Also the external background gamma levels were surveyed.238U, 232Th, 226Ra and 40K activities in soil samples were 21–674 Bq/kg, 11–44 Bq/kg, 22–683 Bq/kg and 51–295 Bq/kg respectively. The external background gamma radiation levels in the plant premises were ranging from 48 to 133 nGy/h.
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