Climate Action Environment National News Pollution which pollutants trigger the most asthma attacks 3 September 2025 / 3 September 2025 by Chris White Researchers have identified the specific components of PM2.5 most strongly linked to asthma hospitalisations, finding that nickel, vanadium and sulfate particles are among the most dangerous compounds in the PM2.5 mixture, alongside nitrate, bromine and ammonium. Full Story and Source Read more » adults air pollution ammonium asthma hospitalisations bromine children coal burning environmental epidemiology fuel oil Harvard T.H. Chan School of Public Health health outcomes long-term exposure machine learning nickel nitrate PM2.5 pollutants sulfate vanadium