title: A gas chromatographic method for automatic monitoring of pollutants in ambient air.
mesh_terms: D000114:Acetylene / Q000032:analysis; D000397:Air Pollution / Q000032:analysis*; D002248:Carbon Monoxide / Q000032:analysis; D002384:Catalysis; D002849:Chromatography, Gas; D005030:Ethylenes / Q000032:analysis; D006838:Hydrocarbons / Q000032:analysis; D008697:Methane / Q000032:analysis; D008722:Methods; D010084:Oxidation-Reduction
chemical_list: D005030:Ethylenes; D006838:Hydrocarbons; D002248:Carbon Monoxide; D000114:Acetylene; D008697:Methane