Tag
Air pollution
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Heat and wildfire smoke together tracked more heart deaths than either alone
Heat waves and smoke days are studied as separate hazards and increasingly arrive on the same day. Across 5.9 million cardiovascular deaths in six countries, the overlap was worse than adding the two together.
Sep 4, 2026
London's clean air zone restored children's lung growth, and four years later the deficit was gone
A Lancet Public Health natural experiment tracked 3,209 children in London and Luton for five years. London children started with smaller lungs, grew them 10 mL a year faster after the ULEZ, and finished level with the comparison town.
Aug 28, 2026
Wildfire smoke sent more people to the ER with migraine
Across 997,701 emergency visits in Alberta and Ontario, wildfire particles tracked a 6% rise in headache visits. Ordinary air pollution at the same concentration did not.
Aug 2, 2026
Air pollution tied to worse memory at 'safe' levels
A McMaster study of 6,878 middle-aged Canadians found higher everyday exposure to particle and traffic-gas pollution tracked with worse memory and mental speed, and small signs of brain injury on scans, even where the air is rated clean.
Jul 23, 2026