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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) But many ...

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 ...

With smoke from Canadian wildfires triggering air quality alerts in more than a dozen U.S. states, millions of Americans have suddenly become intimately familiar with the Air Quality Index, or AQI, a ...

Early moring travel became more difficult due to the combination of low temperatures, calm winds and trapped pollutants, with ...

High winter AQI can harm pregnant women and unborn babies, increasing risks of miscarriage, low birth weight, breathing ...

Delhi's air quality in January 2026 slightly worsened compared to January 2025, with an average Air Quality Index (AQI) of ...

On Wednesday morning, Chennai's air quality was recorded as unhealthy with an AQI of 190. Areas like Annai Sathya Nagar and ...