Wildfire smoke drops Toronto's air quality to the worst level globally

Heavy smoke spreading from wildfires in northeastern Ontario, Canada, lowered Toronto's air quality on Wednesday to the worst level among major cities worldwide. The city's Air Quality Health Index hit a record, reaching the 10+ level, which is extremely rare and indicates maximum risk. Experts stated that this situation poses a serious risk for all citizens and emphasized that people should avoid going outside.

Fine particulate matter (PM2.5) found in wildfire smoke directly affects the respiratory tract and bloodstream, seriously threatening health. Because these microscopic particles can bypass standard medical masks, experts recommend using N95 or KN95 masks when going outside is mandatory. It is noted that particulate matter causes approximately 17,000 deaths and 140 billion dollars in economic damage annually in Canada.

Although climate change increases wildfires and therefore days with risky air quality, long-term data reveal a different picture. Experts state that thanks to the decrease in pollutant levels over the past 30 years, Canada's overall air quality has actually improved. It is emphasized that governments need to increase wildfire prevention efforts, such as controlled burns, to reduce such events in the future.