4 ms·

Holy cow, that must be a German project; Germany has nearly 100% coverage, the USA has almost none. I was expecting China and India to be dark purple

• novok 7y ago
  If you want a more international / american version, check out purple air: https://www2.purpleair.com/ https://www2.purpleair.com/
  • baroffoos 7y ago
    Is purple air the proprietary version?
    • novok 7y ago
      No it's another independent community effort, go read it's about page.