Assertion: radon's level | /r/HasProperty | dangerous
Facets:
Source sentences:
text: Radon can reside at dangerous levels inside homes, schools and other buildings.
text: Radon can, however, build up to dangerous levels inside a house.
text: The EPA suggests that a level of 4pCi/L or higher is dangerous and radon should be mitigated to avoid impact to your health.
text: Consequently, the EPA suggests that a level of 4pCi/L or higher is dangerous and radon should be mitigated.
text: High levels of radiation are dangerous, as radon causes radioactive dust in the air.
text: Radon can, however, build up to dangerous levels inside a house, any other buildings, or caves.
text: Once there, radon sometimes becomes trapped and builds to dangerous levels.
text: The radon becomes trapped in your home where it can increase to dangerous levels.