Assertion: radon's level | /r/AtLocation | the air
Facets:
value: according to the american cancer society
type: OTHER
Source sentences:
text: very low levels of radon gas are found in the air we breathe every day.
text: very low levels of radon gas are found in the air we breathe every day.
text: It’s present in nearly all soils, and very low levels of radon are found in the air we breathe every day, according to the American Cancer Society.
text: Radon gas is present in nearly all soils, and very low levels of radon gas are found in the air we breathe every day.