You might be interested in Luftdaten.info. I could even see a collaboration between your projects, as I'm fairly certain they are all about open-data and openso

You might be interested in Luftdaten.info. I could even see a collaboration between your projects, as I'm fairly certain they are all about open-data and opensource. I personally just discovered them and ordered an EnviroPI+ and a Raspberry Pi Zero W (with an L-shaped GPIO extender and case with a big hole to avoid heat discrepancies from the Pi) so that I can also contribute. Would also love to run your app but I'm in Europe :(