> the “local AQI” is usually from a single government sensor for 100 mile radius
What’s your source on this? IPhone’s AQI report says it’s from Breezometer, which links to Google’s Enterprise AQI offerings, which claim 500m resolution and multiple sources (“over 70 local indexes”). I don’t know but would speculate that Purple Air might be one of the licensed sources.
What’s your source on this? IPhone’s AQI report says it’s from Breezometer, which links to Google’s Enterprise AQI offerings, which claim 500m resolution and multiple sources (“over 70 local indexes”). I don’t know but would speculate that Purple Air might be one of the licensed sources.
https://mapsplatform.google.com/maps-products/air-quality/