[Studies on air pollution owing to the  automobile exhaust gases. The concentrations of C1-C6 hydrocarbons and some inorganic gases in the exhaust gases].
D000397:Air Pollution; D002248:Carbon Monoxide / Q000032:analysis*; D002849:Chromatography, Gas; D006838:Hydrocarbons / Q000032:analysis*; D001335:Vehicle Emissions
D006838:Hydrocarbons; D001335:Vehicle Emissions; D002248:Carbon Monoxide