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Do driving bans help against air pollution?

 

Airparif has analysed the effect of the measure. Excluding the Crit'Air vignettes from traffic within the A86 ring road theoretically leads to the reduction of all pollutants: -32% NOx, -25% PM10 and -30% PM2.5, according to a preliminary study (September 2018) before the introduction of the ZFE. Indirectly, it has an effect on ozone levels if drivers comply with driving bans.