Samples

$A_V^{Rn}$ (Bq/m³)

E_S (mBq∙m⁻²∙h⁻¹)

E_M (mBq∙kg⁻¹∙h⁻¹)

Type

Nr.

Range

Average

Range

Average

Range

Average

Gray cement

7

191 - 366

248 ± 26

149 - 286

194 ± 21

8 - 15

10 ± 2

Gypsum

5

54 - 92

72 ± 7

42 - 72

56 ± 4

2 - 4

3 ± 1

White cement

5

184 - 198

191 ± 19

144 - 155

149 ± 15

7 - 8

7 ± 1

Red brick

5

130 - 192

159 ± 16

101 - 150

124 ± 13

5 - 8

7 ± 1

Block

5

140 - 211

176 ± 19

109 - 165

137 ± 19

6 - 9

7 ± 1

Ceramic

6

159 - 322

226 ± 22

124 - 251

176 ± 18

7 - 13

10 ± 2

Marble

5

69 - 220

151 ± 16

54 - 172

118 ± 12

3 - 9

6 ± 1

Granite

5

132 - 610

350 ± 34

103 - 476

273 ± 26

5 - 25

15 ± 3

Sand

7

140 - 275

190 ± 20

109 - 215

148 ± 16

6 - 11

8 ± 1