Top 3 airquality open source projects

Air Quality monitor using PMS5003 sensor and WiPy development board implemented in MicroPython

CanAirIO is a citizen science initiative. We are developing a mobile application that is able to set a PM2.5 or CO2 sensors, and other related sensors, as a fixed station using WiFi or mobile station with an smartphone by using a Bluetooth connection.

ESP8266 arduino project to read a CO2 value from a MH-Z19 sensor and post it on MQTT