Region | Sample Type | 226Ra series | 232Th series | 40K | Reference |
Algeria | Stone | 16 ± 3 | 13 ± 2 | 36 ± 3 | [11] |
Italy | Stone | 11 | 2.0 ± 2.0 | 22 ± 3 | [30] |
Egypt | Stone | 27.8 ± 1.4 | 46.6 ± 2.3 | 66 ± 3.3 | [31] |
KSA | Stone | 28.6 ± 4.2 | 49.2 ± 2.5 | 66 ± 3.6 | [17] |
India | Stone | 46 ± 8 | 57 ± 12 | 432 ± 64 | [12] |
Pakistan | Lime Stone | 28.4 ± 8.7 | 11.3 ± 1.7 | 63.1 ± 17.3 | [32] |
Present study | Stone | 8 - 16 | 12 - 18 | 230 - 803 |
|
Turkey | Sand | 38.8 ± 10.0 | 29.5 ± 11.3 | 471 ± 101 | [14] |
Algeria | Sand | 12 ± 1 | 7 ± 1 | 74 ± 7 | [11] |
China | Sand | 40.7 ± 4.3 | 21.5 ± 5.6 | 303 ± 3 | [10] |
Greece | Sand | 18 ± 7 | 17 ± 10 | 367 ± 204 | [15] |
Qatar | Sand | 13.2 ± 0.3 | 3.3 ± 0.1 | 226 ± 6 | [33] |
Cuba | Sand | 17 ± 4 | 16 ± 6 | 208 ± 104 | [34] |
Present study | Sand | 12 - 18 | 5 - 24 | 138 - 497 |
|
Turkey | Cement | 49.8 ± 5.8 | 17.3 ± 2.2 | 246 ± 20 | [14] |
Greece | Cement | 20 ± 5 | 13 ± 3 | 247 ± 68 | [15] |
Algeria | Cement | 41 ± 7 | 27 ± 3 | 422 ± 3 | [11] |
Qatar | Cement | 23.4 ± 0.6 | 12.2 ± 0.2 | 159 ± 4 | [33] |
Nigeria | Cement | 43.8 | 21.5 | 72 | [19] |
Cuba | Cement | 23 ± 7 | 11 ± 3 | 467 ± 85 | [34] |
China | Cement | 56.5 | 36.5 | 173.2 | [10] |
South Korea | Cement | 34.5 ± 1.7 | 19.4 ± 1.5 | 241 ± 7 | [35] |
India | Cement | 54 ± 13 | 65 ± 10 | 440 ± 91 | [12] |
Pakistan | Cement | 34.2 ± 11.9 | 29.1 ± 3.6 | 295.1 ± 66.9 | [32] |
Present study | Cement | 15 - 34 | 14 - 24 | 213 - 426 |
|
South Korea | Tile | 44 - 82 | 34 - 96 | 310 - 1019 | [35] |
Greece | Ceramics | 25 - 174 | 29 - 47 | 411 - 786 | [13] |
Egypt | Ceramics | 61 - 118 | 55 - 98 | 730 - 1050 | [36] |
India | Ceramics | 28 | 64 | 24 | [37] |
China | Ceramic tile | 73 | 62 | 480 | [4] |
Turkey | Ceramic tile | 96 | 53 - 69 | 290 - 579 | [3] |
Italy | Porous Tile | 53 ± 15 | 53 ± 12 | 411 - 996 | [16] |
Present study | Tile | 17 - 80 | 10 - 59 | 207 - 655 |
|
Algeria | Marble chip | 23 ± 2 | 18 ± 2 | 310 ± 3 | [11] |
Egypt | Marble | 205 ± 83 | 72 | 870 ± 3.9 | [18] |
Turkey | Marble | 5.4 ± 4.8 | 4.9 ± 3.8 | 49.7 ± 19 | [3] |
Present study | Marble | 14 - 21 | 16 - 19 | 237 - 243 |
|