Erin Davis/Axios Visuals Air quality in Salt Lake City is getting worse, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to our health. By the ...

The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

What doesn't AQI tell us? The Air Quality Index does not take into account many gas or particle ... But the remnants of the smoke and ash that blanketed the city are still settling, and those present ...

That year, Canadian wildfires sent smoke sweeping across much of the U.S., engulfing the New York City ... the American Lung Association. But earlier in 2024, multiple states issued air quality ...

The fire, determined to be the most destructive in Los Angeles city ... worsened air quality statewide, with some areas reporting hazardous levels exceeding 500 on the Air Quality Index (AQI).

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the blazes.