Breathing polluted air in the days before surgery may increase the risk of serious complications afterward, according to new research from the University of Utah that adds to growing evidence about the health effects of fine particulate pollution.
Researchers at the University of Surrey have produced tailored practical guides for city planners in Nepal, Ethiopia and Malawi, showing how strategic use of plants and trees can reduce dangerous air pollution, bring down street temperatures and manage flood risk.
The 2025 IQ Air World air quality report, had analysed air quality data from 9,446 cities in 143 countries, regions, and territories around the world.