Assertion: radon | /r/HasProperty | particular problem
Facets:
value: in the mining of uranium
type: LOCATION
value: beyond mining
type: OTHER
Source sentences:
text: Beyond mining in general, radon is a particular problem in the mining of uranium; significant excess lung cancer deaths have been identified in epidemiological studies of uranium miners and other hard-rock miners employed in the 1940s and 1950s.