NEW YORK (AP) — How can you check the air quality in your area and what do the numbers mean? The Environmental Protection Agency monitors the air around the country and compiles an air quality index, ...

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" ...

The New York State Department of Environmental Conservation’s air-quality health advisory in response to wildfire smoke wafting down from Canada is based on the Air Quality Index, or AQI. The AQI was ...

There has been a lot of talk about air quality levels as nearly the entire tri-state area has been engulfed by smoke coming down from wildfires in Canada. But what do all the numbers actually mean?