Low-emission zones may not cut pollution levels, say scientists

Low-emission zones restricting lorries from five Dutch cities appears to have had no effect on abating air pollution from traffic, a university study has found.

Air quality was measured in Amsterdam streets with low-emission zones (credit: Christian Lendl CC BY 2.0)The introduction of low-emission zones (LEZs) in five Dutch cities has had no measurable effect on traffic pollution, according to new research.

The reasons are unclear, although the exclusion of just a small number of older trucks from cities and a rise in pollution from diesel cars are among possible explanations.

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