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Table 1 Mean radon activity in bottled water, cold and warm spring and annual effective dose rate

From: Radon emanation and heavy-metals assessment of historical warm and cold springs in Nigeria using different matrices

  Water id Sample Temp (°C) Rel Hum (%) Radon concentration Mean (BqL−1) AEDR (μSv year−1) AEDR (mSv year−1)
Min Max S.D Age classification
Infant Children Adult Infants Children Adult
1 2 3 4 5 6 1 2 3 4 5 6
< 1 years 1–2 years 2–7 years 7–12 years 12–17 years > 17 years < 1 years 1–2 years 2–7 years 7–12 years 12–17 years > 17 years
1 Bottled B1 27.0 8.0 0.0 0.44 0.22 0.25 0.25 0.33 0.38 0.44 0.75 0.91 0.0003 0.0004 0.0004 0.0004 0.0008 0.0009
2 B2 26.4 6.0 0.0 0.44 0.19 0.22 0.22 0.29 0.33 0.39 0.66 0.80 0.0002 0.0003 0.0003 0.0004 0.0007 0.0008
3 B3 26.7 6.0 0.0 0.87 0.37 0.36 0.36 0.47 0.54 0.63 1.08 1.31 0.0004 0.0005 0.0005 0.0006 0.001 0.001
4 B4 27.7 7.0 0.0 0.29 0.14 0.11 0.11 0.14 0.17 0.19 0.33 0.40 0.0001 0.0002 0.0002 0.0002 0.0003 0.0004
5 B5 28.0 7.0 0.0 0.15 0.08 0.07 0.07 0.09 0.11 0.12 0.21 0.26 0.00007 0.00009 0.0001 0.0001 0.0002 0.0003
6 Cold C1 32.6 8.0 35.0 35.0 0.02 35.0 35.0 45.50 52.50 61.25 105.00 127.75 0.035 0.046 0.053 0.061 0.105 0.128
7 C2 32.2 7.0 35.0 70.0 20.2 46.7 46.7 60.71 70.05 81.73 140.10 170.46 0.047 0.061 0.070 0.082 0.140 0.171
8 C3 32.2 7.0 0.0 105.0 53.5 58.4 58.4 75.92 87.60 102.20 175.20 213.17 0.058 0.076 0.088 0.102 0.175 0.213
9 C4 31.0 8.0 0.0 70.0 35.0 35.0 35.0 45.50 52.52 61.25 105.00 127.75 0.035 0.046 0.053 0.061 0.105 0.128
10 C5 31.0 7.0 35.0 210.0 92.7 105.0 105.0 136.50 157.50 183.75 315.00 383.25 0.105 0.137 0.158 0.184 0.315 0.383
11 C6 31.0 6.0 0.0 220.0 100.0 210.1 210.1 273.13 315.15 367.68 630.30 766.87 0.210 0.273 0.315 0.368 0.630 0.767
12 C7 30.7 6.0 0.0 105.0 60.5 35.0 35.0 45.50 52.50 61.25 105.00 127.75 0.035 0.046 0.053 0.061 0.105 0.128
13 C8 30.7 6.0 35.0 176.0 73.4 93.7 93.7 121.80 140.55 163.98 281.10 342.01 0.094 0.122 0.141 0.164 0.281 0.342
14 C9 30.7 5.0 0.0 105.0 53.5 46.7 46.7 60.71 70.05 81.73 140.10 170.46 0.047 0.061 0.070 0.082 0.140 0.171
15 C10 30.7 5.0 35.0 140.0 53.6 93.6 93.6 121.68 140.40 163.80 280.80 341.64 0.094 0.122 0.141 0.164 0.281 0.342
16 Warm W1 30.4 6.0 70.0 105.0 20.2 93.4 93.4 121.42 140.10 163.45 280.20 340.91 0.093 0.121 0.140 0.163 0.280 0.341
17 W2 30.4 5.0 35.0 35.0 0.02 35.0 35.0 45.50 52.50 61.25 105.00 127.75 0.035 0.046 0.053 0.061 0.105 0.128
18 W3 30.4 5.0 105.0 175.0 35.0 140.0 140.0 182.00 210.00 245.00 420.00 511.00 0.140 0.182 0.210 0.245 0.420 0.511
19 W4 30.1 5.0 35.0 175.0 72.9 117.0 117.0 152.10 175.50 204.75 351.00 427.05 0.117 0.152 0.176 0.205 0.351 0.427
20 W5 29.2 7.0 70.0 140.0 35.0 105.0 105.0 136.50 157.50 183.75 315.00 383.25 0.105 0.137 0.158 0.184 0.315 0.383
21 W6 29.2 6.0 0.0 35.0 20.2 11.7 11.7 15.21 17.55 20.48 35.10 42.71 0.018 0.015 0.018 0.020 0.035 0.043
22 W7 29.2 6.0 70.0 105.0 20.2 81.7 81.7 106.21 122.55 142.98 245.10 298.21 0.082 0.106 0.123 0.143 0.245 0.298
23 W8 29.2 5.0 0.0 70.0 35.0 35.0 35.0 45.50 52.50 61.25 105.00 127.75 0.035 0.046 0.053 0.061 0.105 0.128
24 W9 29.2 6.0 35.0 140.0 60.7 70.0 70.0 91.00 105.00 122.50 210.00 255.50 0.070 0.091 0.105 0.123 0.210 0.256
25 W10 30.1 5.0 70.0 175.0 60.7 105.0 105.0 136.50 157.50 183.75 315.00 383.25 0.105 0.137 0.158 0.184 0.315 0.383