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.

The Air Quality Index, set by the Environmental Protection Agency, is your guide to how bad the air quality is outdoors. The data that goes into the Air Quality Index comes from 5,000 air monitors ...

then take measures to protect yourself,” he said. Local health officials have provided full lists of guidance on how to minimize your health risks. The Air Quality Index, or AQI, is the primary ...

The Air Quality Index does not take into account many gas or particle contaminants ... such as the PurpleAir network, which measures fine particles in the air. The data comes from small sensors people ...

This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

What is the Air Quality Index, or AQI? The Air Quality Index, often referred to as AQI, is a federal measure of the amount of air pollution, reported on a six-color spectrum from green (good ...