Renault and acid rain

The combustion of fuel inside an engine produces nitrogen oxide (NOx) molecules that are emitted into the atmosphere. 

Through the efforts made over the past thirty years and more, the automotive industry has cut vehicle emissions by a factor of 100, and the trend is expected to continue over the next few years thanks to continuously optimized fuel- injection techniques and after-treatment technologies.

Reduction of hydrocarbon (HC) and NOx emissions in grams per km (for petrol) since 1992 

Reduction of hydrocarbon (HC) and NOx emissions in grams per km (for diesel) since 1992

Air quality is at the heart of the research studies conducted by vehicle manufacturers. Through its proactive research policy, Renault is looking for innovative solutions that will further reduce these emissions and guarantee the long-term international development of the automotive sector while respecting air quality.

At the same time, Renault is cutting SO₂ and NOx emissions at its production sites, by promoting the use of natural gas, and limiting energy requirements.

Renault eco², launched in 2007, reaffirms the Group’s commitments in terms of improving air quality.
Based on 3 criteria, Renault eco² is awarded in particular to vehicles manufactured on sites that reduce their atmospheric emissions. In addition, all the vehicles in the range respect statutory standards in the countries where they are sold.