This is open source app, you can help if you want.
github.com/iaruchkin/DeepBreath

This application will help you with:

- monitoring air quality data;
- receive recommendations on behavior in case of exceeding the normal purity of the air;
- receive notifications about air quality in the place where you are located;
- get the information of the substances emitted into the atmosphere by human activity;
- monitoring weather data in real time;
- get the weather forecast for the week ahead;
- know the temperature, speed and direction of the wind;
- select a system for measuring the received data;