Assertion: radon | /r/HasProperty | significant contributor
Facets:
value: to environmental radioactivity
type: TRANSITIVE-OBJECT
Source sentences:
text: Radon is a significant contributor to environmental radioactivity.
text: Thus, radon is considered a significant contaminant that affects indoor air quality worldwide.
text: Radon is a significant contaminant that affects indoor air quality worldwide.
text: Studies indicate that very few public groundwater supplies contain enough radon to be a significant source of radon in homes.
text: Radon is a significant contributor to environmental radioactivity.
text: Radon is a significant contributor to environmental radioactivity.
text: Thus, radon is considered a significant contaminant that affects indoor air quality worldwide.
text: Thus, radon is considered a significant contaminant that affects indoor air quality worldwide.