London Children's Lungs Recovered After Ulez: Study
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- A Queen Mary University of London study published in the Lancet Public Health followed ~1,700 London children and a similar cohort in Luton (which has no clean-air zone) from before Ulez's 2019 introduction until 2022; London kids' lungs went from "significantly smaller" than Luton's to "roughly equal" capacity over the study period
- London's Ulez, introduced by Mayor Sadiq Khan in 2019 and expanded in 2021 and 2023, charges a £12.50 daily fee for higher-polluting vehicles and has "drastically cut" nitrogen dioxide levels, per the source
- Paris has more than halved PM2.5 and nitrogen dioxide pollution since 2005 and built out its cycling network, while Barcelona added nearly 270km of bike lanes plus vehicle-restricted "superblocks"; both cities' mayors who pushed the measures won re-election
- Air pollution is linked to roughly 8 million premature deaths globally each year, 1.5 million of them from wildfire smoke, with indoor pollution from solid fuels adding another 3 million annual deaths worldwide
- The UK launched a new alert service this week to warn vulnerable people during high-pollution periods; England's Chief Medical Officer Sir Chris Whitty called air pollution "an extremely important, solvable health problem"
- The International Energy Agency has secured more than $3bn in pledges for its clean cooking campaign, and the Guardian cites studies showing 40,000 Europeans die prematurely each year from gas stove pollutants
Why it matters: For UK ministers and EU policymakers weighing clean-air zones, the London lung data offers measurable proof these policies work — but the article notes such measures "routinely" draw vocal opposition from right-leaning politicians and businesses, suggesting implementation remains a political as much as a scientific battle despite voters ultimately rewarding mayors who push through.
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