NEW YORK (AP) — Heavy, pungent wildfire smoke darkened skies in the U.S. on Thursday from the Great Lakes to parts of the East Coast, reducing visibility and prompting warnings that breathing the air outside could be dangerous.
Officials in many cities urged residents to stay inside or wear masks outside as air quality reached unhealthy to hazardous levels, meaning it’s unhealthy for anyone, regardless of health conditions. The smoke is coming from fires that are burning primarily in Canada but also in northern Minnesota. A lingering high pressure system has trapped the smoke close to the ground, said Steven Freitag, a National Weather Service meteorologist in Detroit, where air quality was among the worst in the world for major cities.
“Sure enough, it arrived in force here and it’s really pretty extreme levels,” said Freitag, who noted that visibility in some areas was reduced to a half mile.
“It’s scary,” Omar Mitchell, 50, said as he looked to the sky. He wore a mask while walking to his restaurant in Detroit. “You don’t know necessarily what the side effects may be. That’s days or months later.”
Microscopic particles can lodge deep in the lungs and enter the bloodstream, leading to heart and lung problems and contributing to other long-term health issues.
The air stinks and the sky glows yellow in some places
All of Michigan and much of Minnesota were under a hazardous air quality alert. In the Chicago area, air quality ranged from very unhealthy to hazardous.
National Weather Service meteorologist Jake Petr said even if winds from the northwest clear skies as expected later this week, the smoky air could keep returning until the fires are out. That could take months, until it snows in Canada and northern Minnesota, officials have said.
Bill Ostrowski, 76, wore a mask as he walked through downtown Chicago, where wildfire smoke shrouded skyscrapers. “It stinks. It’s not a good sign when you wake up in the morning and you can smell the air,” said Ostrowski.
In St. Paul, Minnesota, the sky was “glowing yellow,” said Brent Williams, head of the soil, water and climate department at the University of Minnesota. The area “could be looking at weeks to months of continued smoke and flare-ups off and on as the winds blow in different directions,” he said.
A study published this year found that long-term exposure to tiny particles from wildfire smoke contributed to an average of 24,100 deaths a year in the lower 48 states. Long-term exposure can make existing health problems worse and lead to a range of chronic and deadly issues, including respiratory illness, cardiovascular and neurological diseases, and premature death.
New York City cancels activities and hands out masks
In the New York City area, a thick haze tinged the morning sky orange and yellow and partly obscured Manhattan’s skyline.
City officials opened cooling centers as health officials urged New Yorkers to limit strenuous and prolonged outdoor activities. The city’s schools, parks and other agencies moved activities indoors, rescheduled events and adjusted operations. State officials distributed tens of thousands of face masks at transit hubs and other major locations.
Gwen Moseley, 65, was among the first patrons at Rosedale Library in Queens to take advantage of the free masks, saying she’s on the road much of the day working as a therapist for children with autism.