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Soil samples were collected around the uranium deposit of Kitongo to determine activity concentrations of 238 U, 232 Th and 40 K using a NaI(Tl) detector. Ambient dose equivalent rates were measured using a survey meter. 222 Rn-220 Rn discriminative measurements were performed using passive type monitors. The activity concentrations of 238 U, 232 Th and 40 K ranged from 20±5 to 337±78 Bq kg −1 , 14±4 to 53±13 Bq kg −1 and from 21±4 to 897±190 Bq kg −1 respectively, with the average values ofdoi:10.3769/radioisotopes.68.621 fatcat:re7tyfmxgfh5hgzegak24lufye