Surprise! London’s tax on polluting cars made everyone much healthier

The ULEZ restrictions are actually not all that strict, especially from the perspective of us here at an electric vehicle publication – most diesel and petrol (gasoline)-powered cars made within the last 10 and 20 years respectively qualify, despite that they still create significant tailpipe pollution.

Also, there are exemptions available for delivery vehicles, buses and so on.

Nevertheless, despite these exemptions, a recent report released by the city of London shows how well the ULEZ has worked at lowering pollution in London and making everyone healthier.

The report points out that two of the most dangerous aspects of vehicle emissions – nitrogen oxides, which are responsible for smog formation, and PM2.5, which are tiny particles that irritate the lungs – have dropped by almost a third compared to if ULEZ hadn’t been implemented, in only the few years that the policy has been in place.

Specifically, NO2 is 27% lower and PM2.5 is 31% lower in outer London. Nitrogen oxides (which includes both NO and NO2) as a whole are down 14%.

Some areas have seen even more significant declines, like Central London, the most densely populated area. It has seen a drop in NO2 levels of 54%.

All in all, 99% of air quality monitors around London have showed a reduction in pollution, so the new rules have benefitted everyone.