Ozon3 is a collection of open-source air quality packages, that provide live, historical and forecasted air quality data for almost any city in the world!
It currently consists of a stable release Python package - ozon3
on PyPI
The Ozon3 Dart package is currently in developement too!
Ozon3 is based on the incredible WAQI API and makes it instantly accessible to even beginner programmers!
All of Ozon3 is entirely open-source, and we love contributors!