Mean activity concentration Bq∙kg−1 | ||||
| 238U | 232Th | 40K | Location |
1. | 142.79 ± 3.1 | 29.69 ± 1.2 | 359.78 ± 1.6 | Walvis Bay Beach |
2. | 199.76 ± 8.7 | 42.47 ± 2.8 | 611.19 ± 3.2 | Swakopmund Beach |
3. | 176.44 ± 3.5 | 41.16 ± 1.9 | 354.38 ± 1.5 | Henties Bay Beach |
Average | 173.00 ± 8.8 | 37.77 ± 2.7 | 441.78 ± 2.5 |
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