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7 June 2023 / AP NEWS

Millions breathing hazardous air as smoke from Canadian wildfires streams south over US

New York City, New York, United States

The air quality index, a U.S. Environmental Protection Agency metric for air pollution, exceeded a staggering 400 at times in Syracuse, New York City and Pennsylvania’s Lehigh Valley. A level of 50 or under is considered good; anything over 300 is considered “hazardous,” when even healthy people are advised to curtail outdoor physical activity.

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