The Air Quality Index, or AQI, is the primary system used ... the AQI was between 30 and 60 throughout L.A. County — in the “good” or “moderate” range — according to data from the ...

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

Though Jerrett says, '"good" is a bit of a misnomer because even low levels of exposure to air pollution are associated with health problems. What doesn't AQI tell us? The Air Quality Index does not ...

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) to hazardous (maroon). There are five ...