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 CityThe 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. PhiladelphiaAs smoke from the wildfires drifted south, Philadelphia endured unhealthy air quality on Thursday as well.

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Persons: livestreaming webcams Organizations: Midwest, Local, D.C, Philadelphia, Baltimore Air, Toronto, Toronto Public Health, Southwest Ohio Air Quality Agency, . Pittsburgh Pittsburgh Locations: Canada, Northeast, New York City, Washington ,, Washington, Philadelphia, Baltimore, Schools, Atlantic Highlands , New Jersey, New Jersey, New York, Highlands , New Jersey, Toronto, Cincinnati, Pennsylvania