'get_ARPA_Lombardia_AQ_registry' returns the registry (list) of all the air quality sensors
and stations belonging to the ARPA Lombardia network. The information reported are: ID of each sensor and
station, geo-location (coordinates in degrees), altitude (mt), starting date and ending date.
The column 'NameStation' identifies the name of each station, while 'IDStation' is an ID code (assigned
from ARPA) uniquely identifying each station.
For more information about the municipal data visit the section 'Monitoraggio aria' at the webpage:
https://www.dati.lombardia.it/stories/s/auv9-c2sj