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Do low emission zones work?

The Ultra Low Emission Zone (ULEZ) was brought in in London in April 2019 to improve air quality in the centre of the city. In 2020 cities including Bath, Leeds and Birmingham are also bringing in ‘Clean Air Zones'. Alastair Lewis is professor of atmospheric chemistry at the University of York and he explains what these schemes are targeting and whether we can measure whether they are working.

First broadcast on Inside Science, 14 November 2019.

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10 minutes

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