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Gross alpha and gross beta activities were determined for mineral samples collected from five amang tailing factories. The measured activity of alpha ranged from 31 to 220,000 Bq kg −1 with an average 9,154 Bq kg −1 , whereas for beta activity ranged from 9 to 552,000 Bq kg −1 with an average 19,811 Bq kg −1 . The higher gross alpha and gross...
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