With the reddish-orange skies and smoke-filled air, Californians who had previously never heard of PM2.5 pollution are quickly learning about the Air Quality Index and what they need to do to protect ...

Once the most fun part of the school day, lunchtime in the era of COVID-19 also became the most dangerous. The combination of groups of students without masks speaking loudly in an enclosed public ...

New York City has the worst air quality in the world right now due to smoke from Canadian wildfires. The NYC Department of Health told residents to use an air purifier indoors if possible. The EPA ...

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