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 ...

PHILADELPHIA (WPVI) -- With smoke blowing into the Philadelphia region from the wildfires in Canada, you may have heard a lot about the Air Quality Index or AQI. But what it is, exactly? The Air ...

In recent days, the air quality index has been at "Unhealthy" levels in New York City from the Canadian wildfires smoke. People have been warned to avoid outdoor physical activities. Those who spend ...

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 ...

Navi Mumbai is battling what environmental groups described as an \"air emergency\", with air quality remaining in the severe ...

Fog conditions may improve, and minimum temperatures are expected to drop to between 6 and 8°C over the next five days.| ...

Lucknow's air quality improved to a 'moderate' AQI of 110, the lowest in nearly two months, attributed to reduced traffic ...

The Air Quality Index in Delhi plunged to "severe" status. Authorities are enforcing pollution measures and monitoring levels ...

Delhi's air quality saw a slight decline, with the overall AQI at 300 ('poor'). While some areas like Anand Vihar slipped ...

After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free skies this week. The Air Quality Index (AQI) — which measures the ...