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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)
Sampling location	Range	Average ± σ	Annual effective dose (mSv)
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

σ—Standard deviation

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