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

The air quality index (AQI) in many LA regions looks good, but that doesn't mean the air is safe. Why it matters: The AQI in your weather app doesn't account for all pollutants caused by wildfires.

A more accurate way of measuring this pollution would be through its AQI, a tool that measures the quality of air at various levels. A reading of 450-500 is what Delhi is recording at the moment ...

Public health experts recommend monitoring changes in air quality as often as you check the weather. But you should also know some basic facts to help you determine your own sensitivity to air ...

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

When the AQI is above 100, it can affect sensitive groups like children, older adults, and people with pre-existing lung or ...

Support LAist by giving now. 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 ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily more accurate.