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Other questions

Impact of the LEZ

How will the LEZ influence air quality?

By introducing the LEZ in Brussels, emissions of the pollutants which are most harmful to health, namely nitrous oxides, fine particles and especially black carbon (BC), can be reduced. 

Better air quality will be beneficial for all, and will especially help to improve the health of Brussels inhabitants.

Why are there stricter restrictions for diesel vehicles than for petrol vehicles?

In terms of emissions of pollutants, specifically nitrous oxides and fine particles, diesel vehicles have a greater impact on our air quality than petrol vehicles. Consequently, it was decided to establish stricter access criteria for diesel vehicles.

Why target transportation and not other sources of pollutant emissions, such as heating?

The Brussels Government targets all activity sectors which emit pollutants into the air. That is why the Air, Climate and Energy Plan was approved on 2 June 2016.

In addition to the LEZ, this plan anticipates measures with regards to the energy efficiency of buildings, better monitoring of air quality, energy production from renewable energy sources, and measures in the economic sectors, consumption patterns and product use.

An additional LEZ?

Will other cities in Belgium also introduce a LEZ?

Yes: there is a low emission zone in the city of Antwerp since 1/02/2017. Mechelen will also introduce a LEZ in 2018 en Ghent is planning one from 2020.

The access criteria of the LEZ in Flanders are not exactly  the same as the LEZ in Brussels (as it is a regional regulation). Relevant information about the LEZ in Flanders can be found here.

Are there LEZs in other countries?

Yes: many European countries have introduced a LEZ in their major cities. Most major German cities have one.  They also exist in the Netherlands and Italy. London has a LEZ and Paris is also introducing one.

All information regarding LEZs in Europe can be found here.


The introduction of the LEZ is a project which requires the cooperation of various government departments and actors, specifically: Brussels Environment, Brussels Mobility, Brussels Regional Informatics Centre (BRIC), Brussels Prevention and Security and Fiscality Brussels.

Information service Environment:

Tel.: +32 (0)2 / 775.75.75