Gas engines - State of the art

The repeated waves of pollution in the summer of 1997 reflected the poor quality of the air in an overheated atmosphere, and the impact of road transport gave rise to hyper-mediatization that was often approximate, even contradictory. Nevertheless, it is no longer necessary to demonstrate that this recurring phenomenon of nuisance emissions is part of a public health environmental context.

Experience shows that it is in urban areas that measures must be taken to significantly reduce the harmful effects of over-concentration of vehicles in terms of air pollution and noise. Among the panoply of alternative strategies to conventional liquid fuels, the use of gaseous fuels such as natural gas and liquefied petroleum gas represents an ecological response adapted to captive and urban use of vehicle fleets.