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The Guardian - US
The Guardian - US
World
Dharna Noor

How to keep safe as wildfire smoke chokes eastern US skies

Traffic goes over the Ed Koch Queensboro Bridge as smoke from Canadian wildfires casts a haze over New York City on 7 June.
Traffic goes over the Ed Koch Queensboro Bridge as smoke from Canadian wildfires casts a haze over New York City on 7 June. Photograph: Eduardo Muñoz/Getty Images

Air quality alerts were in place for 110 million US residents on Wednesday as smoke from Canadian wildfires choked the skies.

New York, Washington DC, Delaware and Pennsylvania had the worst air quality in the nation on Wednesday morning, EPA data showed. Levels in central New York were deemed “hazardous” – the worst level on the EPA’s index for air quality reporting – while Philadelphia was placed under a “code red” as the air quality index soared to its highest level since 2008.

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