A nice map with air quality. PM10 and PM2,5. People build their own sensor and connect it to the Internet.
Open environmental data 👍https://sensor.community/en/
@JohanEmpa Have a look at https://opensensemap.org/ for a similar project!
Welcome to mastodon.green This server is for people in Europe, but you can connect with friends on any Mastodon server in the world.