Canadian Wildfire Smoke Triggers Air Quality Alerts Across U.S. States
Smoke from Canadian wildfires has prompted air quality warnings from South Carolina to the Northeast, with officials urging reduced outdoor activity and the use of protective masks.
The National Weather Service warned residents in states as far south as South Carolina to monitor air quality as smoke from hundreds of Canadian wildfires spreads across the border. Health officials advised people in areas with extreme air quality alerts to limit outdoor activities, and those facing very unhealthy or hazardous conditions to stay indoors with windows closed. Doctors recommended that individuals with heart or lung conditions remain inside, while outdoor workers were urged to wear N95 respirators, which can filter at least 95% of airborne particles.
Air quality indexes reached unhealthy levels in Michigan, Wisconsin, Minnesota, Illinois, New York, New Jersey, Massachusetts and Connecticut, prompting mask recommendations for anyone required to be outside. While respirators can reduce exposure to fine particles, they do not protect against hazardous gases such as carbon monoxide.
Scientists linked the increase in large, intense wildfires to hotter, drier conditions driven by climate change, noting that fire seasons have lengthened and smoke can travel hundreds of miles, affecting millions far from the flames. The Joint Economic Committee estimates that wildfires cost the United States between $394 billion and $893 billion annually, accounting for health impacts, property loss and other factors.
"Our constituents are breathing the consequences of this failure right now, and they deserve better than to be told, again, that it will be handled," Michigan lawmakers wrote in a letter demanding a response.
State and federal officials continue to assess the situation and consider additional measures to protect public health as the smoke plume persists.