Country

Range

Samples

Reference

Côte d’Ivoire

2.8 - 251.5 nSv/Y

H. sabdariffa_leaf

present work

Ghana

9000 - 14,000 nSv

Medicinal plants

[9]

²³⁸U: 0.7 - 9.7 nSv

Serbia

²³²Th: 0.3 - 2.8 nSv/y

Tea herb

[10]

⁴⁰K: 1026 - 10,132.2 nSv/y

Iraq

1380 - 1950 nSv/y

Medicinal plants0

[11]