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See real-time air quality index (AQI) readings from PurpleAir sensors around the world. Widgets enable you to get a map of real-time AQI readings directly on your home screen. The Air Quality Index (AQI) tells you how clean or polluted your air is and what associated health effects might be a concern for you. This app displays AQI readings from PurpleAir, a collection of air quality sensors run by enthusiasts and air quality professionals around the world.
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