Assertion: nitrogen dioxide's gas | /r/CapableOf | help reduce carbon monoxide emissions
Facets:
value: between 1983
type: TEMPORAL
value: by approximately 25 percent
type: OTHER
value: between 1992
type: TEMPORAL
Source sentences:
text: Between 1983 and 1992, routine system checks and oxygenated gases produced during the winter have helped reduce carbon monoxide emissions by approximately 25 percent.