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 AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) But many Angelenos aren’t sure if the AQI tells the full story, especially given how ...

NEW YORK (WABC) -- The Air Quality Index is a scale used for daily reporting of how clean or polluted the air is, and what health effects might be of concern. The AQI focuses on what you might ...

Smoke from Canadian wildfires has impacted the air quality throughout United States, including in the northern High Plains, Midwest, Great Lakes, southern Mid-Atlantic and into the Northeast. This has ...

Here’s how to understand the Environmental Protection Agency’s Air quality index (AQI), which measures, on a 300-point scale (along with six categories and advisories), the quality of air in any given ...

NEW YORK, NEW YORK - JUNE 7: A person waiting for the subway wears a filtered mask as smoky haze from wildfires in Canada blankets a neighborhood on June 7, 2023 in the Bronx borough of New York City.

The petition highlights the worsening air quality in Kolkata-Howrah. It calls for urgent state intervention. The court will ...

The color-coded Air Quality Index categories you’ll find on the Environmental Protection Agency’s AirNow website rank air quality on a 500-point scale and are meant to give the public an easy way to ...