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The sun rises over the lower Manhattan skyline as seen from Jersey City, New Jersey, June 8, 2023. Intense Canadian wildfires are blanketing the northeastern U.S. in a dystopian haze, turning the air acrid, the sky yellowish gray and prompting warnings for vulnerable populations to stay inside.

People wear protective face masks as they walk in midtown Manhattan as haze and smoke caused by wildfires in Canada continue to linger over New York City, June 8, 2023.

With the Washington Monument in the background and a thick layer of smoke, Marine Corps honor color guard rehearse, June 8, 2023, in Washington.

The sun rises behind the Washington Monument and a thick layer of smoke, June 8, 2023, in Washington.

Haze blankets the Lincoln Memorial on the National Mall in Washington, June 8, 2023.

People walk at 6th Avenue as haze and smoke caused by wildfires in Canada blanket New York City, June 7, 2023.

A performer plays the violin in Times Square as Manhattan is shrouded in haze and smoke which drifted south from wildfires in Canada, in New York City, June 7, 2023.

A sign is displayed on the door of an IPIC theater explaining that it is closed due to air quality in New York, June 7, 2023.

A person wearing a face mask takes a picture of the Manhattan skyline while it's covered in haze and smoke caused by wildfires in Canada, in Brooklyn, New York, June 7, 2023.

Traffic moves along in New York, June 7, 2023, amidst smokey haze from wildfires in Canada. 

A Man talks on his phone as he looks through the haze at the George Washington Bridge from Fort Lee, New Jersey, June 7, 2023.

Evening commuters travel on Broad Street past a hazy City Hall, June 7, 2023, in Philadelphia, Pennsylvania.  Smoke from Canadian wildfires poured into the U.S. East Coast and Midwest on Wednesday, covering the capitals of both nations in an unhealthy haze, and prompting people to fish out pandemic-era face masks.

New York Yankees' Clarke Schmidt pitches to Chicago White Sox's Tim Anderson during the first inning of a baseball game, June 6, 2023, in New York.

The Statue of Liberty is covered in haze and smoke caused by wildfires in Canada, in New York, June 6, 2023.