Chicago Mayor Brandon Johnson said the city is “carefully monitoring and taking precautions.”

“We recommend children, teens, seniors, people with heart or lung disease, and individuals who are pregnant avoid strenuous activities and limit their time outdoors,” Johnson said in a statement released Tuesday.

The Illinois Environmental Protection Agency issued an Air Quality Alert in effect until midnight Wednesday and encouraged Chicago residents to limit their time outdoors.

Detroit had the second worst air quality in the world Tuesday.

The National Weather Service has issued poor air quality alerts for northeastern Illinois, northwestern Indiana and all of southeast Michigan for Tuesday and Wednesday.

The New York city skyline as smoke from the Canadian wild fires
The New York City skyline as smoke from the Canadian wild fires, on June 7.Lev Radin / Pacific Press/LightRocket via Getty Images file

Poor air quality is also expected in New York City on Wednesday because of “incoming winds,” according to Mayor Eric Adams.

“Poor air quality is particularly dangerous to sensitive health groups like people with respiratory or cardiovascular conditions,” Adams tweeted. “Bring a KN95 or N95 mask with you tomorrow, or make plans to avoid outdoor events just in case.”

Earlier this month, emissions from approximately 400 wildfires burning in Canada cast an orange haze over major metro areas including New York City, Boston, Philadelphia and Washington, D.C.

Canada’s wildfire season this year is the worst on record with around 29,000 square miles burning in eastern and western Canada, which is greater than the combined area burned in 2016, 2019, 2020 and 2022, Reuters reported.

Source: | This article originally belongs to Nbcnews.com

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