October 19, 2022

Quantifying the impact of low- and zero- emission zones


This new research commissioned by our campaign reveals the power of low-emission zones (LEZs) in helping to bring down harmful levels of air pollution in urban areas. 

The findings reveal that LEZs – zones where access for the most polluting vehicles is restricted – have been shown to reduce nitrogen dioxide (NO 2 ) concentrations by around 20% in a wide range of conditions. The report also shows LEZs can improve air quality in areas outside the zone and prior to full implementation. The roll-out of zero-emission zones (ZEZs), that only allow for walking and cycling as well as the use of zero-emission vehicles, could have an even greater effect.

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Low-emission zones are on the rise in europe

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