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ground-level ozone
Trends
- 1Report: 40% of world's population faces dangerous ozone pollution▼Nearly 40% of global population exposed to dangerous ozone pollution in 2026: Report
A new report finds that nearly 40% of the global population is being exposed to dangerous levels of ozone pollution in 2026. Ground-level ozone, formed when emissions from vehicles and industry react in sunlight, is linked to respiratory illness and premature deaths. The findings highlight widening air quality concerns in densely populated regions and renew calls for stronger emissions controls worldwide.
- 2
New reporting highlights that heatwaves and wildfires are driving extreme ozone pollution across the globe. Ground-level ozone, formed when heat and wildfire emissions react with sunlight, poses serious health risks and worsens air quality during summer extremes. Coverage links the surge in ozone episodes to intensifying climate conditions and more frequent wildfire seasons.
- 3Nearly 40% of world exposed to harmful ozone pollution: EU agency▼Nearly 40% of world population exposed to harmful ozone pollution in 2026: EU climate agency
The EU's climate agency reports that nearly 40% of the world's population was exposed to harmful ozone pollution in 2026. The finding highlights the growing reach of ground-level ozone, a pollutant linked to respiratory illness and premature deaths. The assessment is drawing attention to air quality as a major global health and climate concern.