gios integration uses the GIOŚ web service as a source for air quality data for your location.
station_id of the measuring station, go to GIOŚ page, select the measuring station on the map and click the “More Info” link. The address of the opened page will look like this:
291 will be
station_id of measuring station.
Adding GIOŚ to your Home Assistant instance can be done via the user interface, by using this My button:
If the above My button doesn’t work, you can also perform the following steps manually: