Tag: East Coast

Science

What is the Air Quality Index, the tool used to tell just how bad your city’s air is?

Smoke from wildfires in Canada has drifted into the U.S., prompting air quality alerts for Americans as it continues to spread.  But when officials and forecasters classify a city’s air as “unhealthy” or “hazardous,” what does that really mean? The classifications are based on a federal measurement system called the Air Quality Index.  What is […]

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