Open Data for Lombardy (Italy), including Milan, are available: * data are here https://www.dati.lombardia.it/Ambiente/Dati-sensori-aria/nicp-bhqi https://www.dati.lombardia.it/resource/2tw8-h2cp.json * metadata are here https://www.dati.lombardia.it/Ambiente/Stazioni-qualit-dell-aria/ib47-atvt https://www.dati.lombardia.it/resource/t4f9-i4k5.json
