Assertion: ozone | /r/CapableOf | produce detected pungent odour
Facets:
value: at concentrations
type: LOCATION
value: easily
type: MANNER
value: in atmospheric air
type: LOCATION
value: (ppm)
type: OTHER
Source sentences:
text: Ozone is a clear, blue coloured gas that produces an easily detected pungent odour at concentrations as low as 5 parts per million (ppm) in atmospheric air.