From: Natural radioactivity levels of some medicinal plants commonly used in Ghana
Country | Activity concentration ( Bq kg-1) | Reference | |||||
---|---|---|---|---|---|---|---|
238U | 232Th | 40K | |||||
Range | Average | Range | Average | Range | Average | ||
Ghana | 20.4–46.9 | 31.8 | 42.0–70.6 | 56.2 | 566.4–1093.1 | 839.8 | This work |
Brazil | - | - | <11.0–43.0 | 21.7 | 666.0–1216.0 | 976.3 | (Scheibel and Appoloni 2007) |
Italy | <0.1–7.3 | 0.4 | - | - | 5.4–3582.0 | 654.7 | (Desideri et al. 2010) |
Nigeria | 14.7–16.2 | 15.6 | 7.0–11.4 | 8.5 | 66.8–70.2 | 67.9 | (Olatunde et al. 2011) |
Serbia | 0.6–8.2 | 2.6 | 1.7– 15.1 | 7.4 | 126.0–1243.7 | 589.6 | (Jevremovic et al. 2011) |