Research Article
Gamma Emitting Radionuclides in Soils from Selected Areas in Douala-Bassa Zone, Littoral Region of Cameroon
Table 3
Comparison of specific gamma activities (Bq/kg) in soil with that of other countries.
| | Country | Activity concentration (Bq/kg) | Reference | | Ra | Th | K |
| | China (Xiaz-hung area) | 40.20–442.00 (112.00) | 32.60–88.10 (71.50) | 440.00–913.00 (672.00) | [18] | | Botswana | 6.10–97.40 (34.80) | 7.40–110.00 (41.80) | 33.50–1085.70 (432.70) | [19] | | Ghana (Great Accra) | 2.40–62.70 | 3.2–145.7 | 91.10–1395.90 | [20] | | India (Himwchal Pradesh) | 42.09–79.63 (57.34) | 52.83–135.75 (82.22) | 95.33–160.30 (135.75) | [21] | | Italy (Southern) | 57.00–71.00 | 73.00–87.00 | 580.00–760.00 | [22] | | Namibia | 4.50–48.00 (31.00) | 3.00–38.00 (32.00) | 42.00–1100.00 (480.00) | [23] | | Nigeria (Lagos) | 3.00–43.00 | 5.00–76.00 | 40.00–354.00 | [24] | | Nigeria Delta | 11.00–40.00
| 12.00–40.00
| 69.00–530.00
| [25] | | Cameroon |
*21.99–29.17 (25.48) |
*59.14–65.89 (65.96) |
*13.93–70.89 (39.15) | This Work | |
**21.99–27.68 (24.50) |
**52.60–78.99 (66.72) |
**11.89–80.76 (28.19) |
|
|
*Campus 1; **Campus 2; ( ): average value.
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