Toxic air is all but inescapable today, with only 1% of humanity avoiding exposure to pollution exceeding World Health Organisation standards. Sources and sufferers are concentrated in major cities. London killed around 4,000 with its air in 2020, according to Imperial College London. How can we make the streets safe for breathing?
Labour mayor Sadiq Khan is expanding the ‘Ultra Low Emission Zone’ (ULEZ) from inner London – roughly half the city, within the North and South Circular roads – to all of Greater London at the end of August. Vehicles which don’t meet exhaust standards, mostly older cars which are more affordable to poorer workers, are charged £12.50 each day they operate within the zone.
A study on ULEZ by Imperial College London found in 2021 that it “caused only small improvements in air quality in the context of a longer-term downward trend in London’s air pollution levels”. The separate, wider ‘Low Emission Zone’ cut emissions from heavy goods vehicles. Parking restrictions, traffic and the rising cost of living make car ownership harder and harder in inner London. New vehicles replace older models year on year and are built to higher environmental standards anyway.
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