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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