Assertion: ozone's concentration | /r/HasProperty | approximately 40 ppb
Facets:
value: respectively
type: DEGREE
Source sentences:
text: VOCs and O3 concentrations were approximately 25 mg/m3 and approximately 40 ppb, respectively.
text: VOCs and O3 concentrations were approximately 25 mg/m3 and approximately 40 ppb, respectively.