3.4. Replacement of gasoline by CNG: impact on emissions
Argentina is the second country in the world after Pakistan with the highest number of CNG vehicles amounting in 2006-1430 thousands that are served by 1600 refueling stations.
The combined results of GHG gases would have implied a decrease of 3 2.8% in terms of global warming potential.
Regarding criteria pollutants, the conversion of gasoline vehicles to CNG produced an increase of 6% in NO2 emissions and decreases of the other pollutants in the following order: CO (64%) > NMVOC (35%) > SO2
(18%) > PM (1%)