A script that shows the local World Air Quality Index. It's an indicator for the air pollution.
curljq
You need an API token. Request one.
Choose a city and make sure that the result is what you expect. berlin is a valid CITY here: http://aqicn.org/city/berlin/. Or use the map to find a monitoring station near you. germany/berlin/friedrichshain-frankfurter-allee works also as CITY.
If CITY is left empty, the location is retrieved via the Mozilla Location API.
[module/info-airqualityindex]
type = custom/script
exec = ~/polybar-scripts/info-airqualityindex.sh
interval = 600