Air quality in NYC could improve Friday as Canada wildfires rage on
N.Y.C. has worst air quality in the world due to Canadian wildfires
Air quality updates: The latest on wildfire smoke swarming the US
Intense smoke fills NYC and forces a 'code red' in Philadelphia as millions from the East Coast to Canada suffer from Quebec's wildfires
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Smoke could blanket East Coast again as Canadian wildfires rage on
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June 7, 2023 Canada wildfire smoke and US air quality news
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