Is the Air Quality Index enough? What the AQI can — and can't — tell you about how healthy the atmosphere is.
The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...
Los Angeles air quality improves from wildfires' hazardous levels
Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...