EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF DANGEROUS LOCAL AIR POLLUTION BY VEHICLE EMISSIONS AT EXTREMELY LOW AMBIENT TEMPERATURE
The article describes the results of experimental and computational studies of the qualitative and quantitative composition of exhaust gases of diesel and gasoline engine installations of modern passenger vehicles of environmental classes Euro 3, Euro 4 and Euro 5 in extremely low temperatures. It is determined that the concentrations of pollutants CO, С<sub>n</sub>Н<sub>m</sub> and NO<sub>X</sub> in the exhaust gases at the time of starting and warming up the engine and the catalytic converter of the car (regardless of the environmental class of the vehicle) have high values and the higher the lower the ambient temperature.