This is very accurate
Open Air Quality at Google Play market analyse
Estimation application downloads and cost
Description
Display, monitor and track air quality / pollution measurements from measurements locations from openaq.org..Features:- View list of nearby locations- Select location by country, city, location- View stations and measurements on Google Maps- Save favorite locations- Optionally, run in background (to update air quality location data and / or closest air quality location based on your location).- Notification fixes- Minimum Android version 4.4 (KitKat)- Minor fixes and enhancements
