Tentative method of analysis for methane and carbon monoxide content of the atmosphere (gas chromatographic method by reduction to methane).
D000397:Air Pollution / Q000032:analysis*; D002248:Carbon Monoxide / Q000032:analysis*; D002849:Chromatography, Gas; D008697:Methane / Q000032:analysis*; D008722:Methods
D002248:Carbon Monoxide; D008697:Methane