Assertion: terrestrial radiation | /r/HasProperty | 0.21 0.40
Facets:
Source sentences:
text: Terrestrial radiation from ground 0.48 0.21 0.40 depends on soil and building material Cosmic radiation from space 0.39 0.33 0.30 depends on altitude sub total (natural) 2.40 3.10 1.50 sizeable population groups receive 10–20 mSv Medical 0.60 3.00 2.30 worldwide figure excludes radiotherapy;