Samples | Country | Specific activities (Bq/kg) | References | ||
226Ra | 232Th | 40K | |||
Gray Cement | European Union | 45 | 31 | 216 | [14] |
China | 21.7 ± 1.92 | 22 ± 0.89 | 181 ± 3.75 | [15] | |
Turkey | 39.9 ± 18.0 | 26.4 ± 9.8 | 316.5 ± 88.1 | [16] | |
South Korea | 34.5 ± 1.7 | 19.4 ± 1.5 | 241 ± 6.7 | [17] | |
Morocco | 31 ± 5 | 19 ± 3 | 238 ± 29 | Present Work | |
White Cement | Egypt | 17.45 ± 2.33 | 8.44 ± 1.49 | 4.09 ± 4.72 | [18] |
Turkey | 32.8 ± 5.1 | 16.3 ± 7.6 | 99.2 ± 31.8 | [16] | |
Qatar | 18.9 ± 0.5 | 4.9 ± 0.5 | 62.9 ± 22.6 | [19] | |
Serbia | 18 ± 3 | 12 ± 5 | 55 ± 37 | [20] | |
Iraq | 49.577 ± 0.865 | 16.74 ± 2.28 | 32.6 ± 4.31 | [21] | |
Morocco | 25 ± 4 | 22 ± 3 | 68 ± 8 | Present Work | |
Gypsum | Saudi Arabia | 33.28 ± 4.7 | 47.2 ± 2.8 | 88 ± 4.4 | [22] |
Italy | 6 ± 5 | 2 ± 2 | 32 ± 43 | [23] | |
Iran | 8.1 ± 0.1 | 2.2 ± 0.1 | 116 ± 11 | [24] | |
Morocco | 9 ± 1 | 3 ± 1 | 73 ± 9 | Present Work | |
Red brick | Iran | 37.0 ± 1.5 | 12.2 ± 0.7 | 851 ± 15 | [24] |
Albania | 33.4 ± 6.4 | 42.2 ± 7.6 | 644.1 ± 64.2 | [25] | |
Egypt | 23.06 ± 2.60 | 23.11 ± 2.99 | 447.84 ± 10.16 | [18] | |
Morocco | 23 ± 4 | 21 ± 3 | 360 ± 41 | Present Work | |
Block | Egypt | 288.5 ± 17.49 | 77.77 ± 15.61 | 909.5 ± 59.73 | [18] |
Iran | 20.7 ± 1.1 | 3.0 ± 0.4 | 436 ± 14 | [24] | |
Morocco | 27 ± 3 | 23 ± 3 | 300 ± 37 | Present Work | |
Ceramic | Egypt | 51.12 ± 2.74 | 40.52 ± 2.54 | 682.6 ± 10.13 | [18] |
Turkey | 33.1 ± 2.5 | 49.5 ± 3.3 | 459.1 ± 51.3 | [26] | |
Syria | 65.878 ± 1.0 | 28.16 ± 3.0 | 401 ± 14.67 | [21] | |
Morocco | 28 ± 5 | 30 ± 5 | 340 ± 42 | Present Work | |
Marble | Saudi Arabia | 12.7 ± 3.4 | 13.2 ± 1.4 | 64 ± 3 | [22] |
Algeria | 23 ± 2 | 18 ± 2 | 310 ± 3 | [27] | |
Morocco | 18 ± 2 | 10 ± 1 | 154 ± 19 | Present Work | |
Granite | Saudi Arabia | 23 ± 1.4 | 30.0 ± 0.4 | 340 ± 6.7 | [22] |
Turkey | 67.5 ± 47.6 | 77.4 ± 53.0 | 915.3 ± 361.2 | [16] | |
Morocco | 52 ± 6 | 63 ± 8 | 705 ± 84 | Present Work | |
Sand | Turkey | 38.8 ± 10.0 | 29.5 ± 11.3 | 471.4 ± 101.2 | [26] |
Qatar | 13.2 ± 0.3 | 3.34 ± 0.05 | 225.5 ± 6.1 | [19] | |
Pakistan | 21.5 ± 0.5 | 31.9 ± 0.5 | 519.6 ± 6.0 | [28] | |
Morocco | 22 ± 3 | 20 ± 3 | 274 ± 47 | Present Work |