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What AQI actually says (and overlooks)
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 ...
CNET20d
How to Monitor Air Quality and Protect Yourself From Wildfire Smoke
Very Unhealthy (Purple): 201-300 AQI is a serious health risk level for everyone, and you may see a health alert on your phone or weather app. Hazardous (Maroon): 300 or greater AQI is ...