About: emission of major pollutant

Head noun: emission
Postmodifier: of major pollutant

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
nitrogen oxide	isap:298390595	0.681733
sulfur dioxide	isap:46496999	0.678441
ammonia nitrogen	isap:58638572	0.668011
carbon monoxide	isap:59325533	0.596753