Assertion: ammonia | /r/AtLocation | air
Facets:
value: at hazardous waste sites
type: LOCATION
value: naturally
type: MANNER
value: at higher than 5 ppm
type: OTHER
Source sentences:
text: It is found in water, soil, and air, and is a source of much needed nitrogen for plants and animals.
text: Ammonia is present in soil, water and air, and it is an important source of nitrogen for plants.
text: Ammonia has a very strong odor that is irritating and that you can smell when it is in the air at a level higher than 5 ppm.
text: Ammonia exists naturally in the air at levels between 1 and 5 parts in a billion parts of air (ppb).
text: Ammonia has been found in air, soil, and water samples at hazardous waste sites.
text: Entering the environment Ammonia occurs naturally in the environment, and is present in air, soil, water, plants and animals.