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Millions of Britons face a higher risk of stroke or heart failure because of dirty air where they live, according to new research presented at the European Society of Cardiology conference.
People living in areas with the worst levels of air pollution are 27% more likely to develop heart failure compared to those in areas with the cleanest air, while stroke risk was 7% higher in the most polluted areas.
The study tracked 299,323 people for a decade between 2010 and 2020, examining average levels of PM2.5 pollution in their residential areas.
PM2.5 particles, released from vehicles, industry, and household heating, are small enough to enter the bloodstream after being inhaled, causing inflammation that can lead to high blood pressure and heart problems.
Researchers found one extra person in every 100 experienced a stroke in the top 10% of polluted areas compared to the cleanest areas, and another two people in every 100 developed heart failure.
Despite a 30% reduction in PM2.5 since 2015, safety limits are still broken in the UK, with 22 days a year on average exceeding World Health Organization targets.
2025-09-10 13:54:00



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