Wildfires in Canada produced smoke that shrouded a number of cities in the Northeast and the Midwest over the past several days. Footage captured by livestreaming webcams showed how smoke from the fires blanketed the skies in a gray, sometimes orange, haze.
New York City
The skyline in the city took on an orange hue on Wednesday as the poor air quality hit historic levels, even compared with places around the world that generally experience much worse pollution.
Washington, D.C.
Local authorities issued a Code Purple air quality alert for Thursday, indicating very unhealthy conditions for all age groups, not just for those with respiratory problems.
Philadelphia
As smoke from the wildfires drifted south, Philadelphia endured unhealthy air quality on Thursday as well. Local events were postponed as city officials urged residents to stay indoors.
Baltimore
Air quality declined in Baltimore on Thursday as smoke descended on the area. Schools, parks and sports teams canceled outdoor activities and events.
Atlantic Highlands, New Jersey
At a marina off the Atlantic Ocean in New Jersey, the same orange cast that covered New York City could be seen on Wednesday.
Toronto
The city experienced smoky conditions for days, and Toronto Public Health encouraged residents to reduce their exposure to polluted air by limiting activities outdoors.
Cincinnati
Smoke and haze covered Cincinnati for several days, as the Southwest Ohio Air Quality Agency issued an alert warning that the air would be “unhealthy for sensitive groups.”
Pittsburgh
Pittsburgh also experienced a smoky haze, as authorities issued a Code Red alert on Wednesday for the entire state of Pennsylvania.