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Table 2 Average absorbed dose rate in air at 1 m above sampling points in the study areas and calculated annual effective dose

From: Natural radioactivity levels in soils, rocks and water at a mining concession of Perseus gold mine and surrounding towns in Central Region of Ghana

Sampling location Absorbed dose rate (μGyh−1) Annual effective dose (mSv)
Range Average ± σ
P1 0.04–0.14 0.08 ± 0.03 0.093
P2 0.04–0.17 0.10 ± 0.05 0.124
P3 0.04–0.13 0.09 ± 0.03 0.109
P4 0.06–0.14 0.10 ± 0.03 0.126
P5 0.09–0.12 0.11 ± 0.01 0.133
P6 0.02–0.10 0.05 ± 0.03 0.066
T1 0.06–0.14 0.10 ± 0.03 0.117
T2 0.04–0.09 0.06 ± 0.02 0.076
T3 0.04–0.09 0.06 ± 0.02 0.078
T4 0.04–0.08 0.06 ± 0.02 0.075
T5 0.03–0.09 0.06 ± 0.02 0.078
S1 0.04–0.13 0.09 ± 0.03 0.112
S2 0.08–0.16 0.12 ± 0.03 0.142
S3 0.03–0.08 0.06 ± 0.02 0.067
S4 0.02–0.06 0.04 ± 0.02 0.047
S5 0.03–0.10 0.06 ± 0.02 0.075
S6 0.04–0.08 0.05 ± 0.02 0.066
Average ± σ 0.02–0.17 0.08 ± 0.02 0.093 ± 0.028
  1. σ—Standard deviation