Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels ... But air quality can vary on a hyperlocal scale, meaning the network of official sites is "fairly sparse," ...

The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...

Most of the world's population is exposed to polluted air and or those living in cities with chronically bad air, the smog ...

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn ...

One way to understand how wildfire smoke is causing dangerous air pollution is the Air Quality Index scale, often used by weather apps. But that isn’t the only way to measure it — and relying ...

When news breaks, you need to understand what matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

If you were on social media last week or checked the Minnesota Pollution Control Agency website, you may have noticed an air quality alert was issued for parts of Minnesota, including McLeod and ...

as judged by the EPA's Air Quality Index rating system. Moderate air quality is between 51 and 100, or in the yellow band of the AQI scale. Air quality in the moderate range can still be risky for ...

Most of the world's population is exposed to polluted air, and for those living in cities with chronically bad air, the smog ...

(Bloomberg) -- As fires burned across LA this week, worried residents have been looking at measures of air quality to help determine how safe it is to be outside.Smoke from wildfires can travel ...