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Table 3 Comparison of the activity concentration of 238 U, 232 Th and 40 K in the medicinal plants from this study with those from other countries

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)