| Italy |
| 18 | Arre -PD-: Via Padre Ruzzon, Arre, Padova, 35020, Italy | | Gaia realtime air quality monitoring network 425 |
| 24 | | | Citizen Science project sensor.community 86239 |
| 89 | | | Gaia realtime air quality monitoring network 198 |
| 6 | | | Gaia realtime air quality monitoring network 522 |
| 26 | | | Citizen Science project sensor.community 39956 |
| 14 | Corso Svizzera: Corso Svizzera, Basse di Stura, Turin, Turin, Italy, 10149 | | Citizen Science project sensor.community 74799 |
| 91 | | | Gaia realtime air quality monitoring network 755 |
| 4 | | | Citizen Science project sensor.community 12631 |
| 10 | Galuppi-SI: Via Baldassarre Galuppi, Mestre, Venezia, Italy | | Gaia realtime air quality monitoring network 451 |
| 1 | Kaulonia: Marina di Caulonia, Caulonia, Reggio Calabria, Calabria, 89041, Italy | | Gaia realtime air quality monitoring network 443 |
| 33 | | | Citizen Science project sensor.community 77349 |
| 69 | MONTODINE01: Via Monsignor Ferdinando Guercilena, Montodine, Cremona, 26010, Italy | | Gaia realtime air quality monitoring network 757 |
| 6 | Majano: Tiveriacco / Trivià, Majano / Maian, Majano, Udine, Friuli – Venezia Giulia, 33030, Italy | | Gaia realtime air quality monitoring network 1021 |
| 36 | | | Gaia realtime air quality monitoring network 496 |
| 3 | | | Gaia realtime air quality monitoring network 453 |
| 5 | Ragusa: Case Mandarà, Ragusa, Sicily, 97100, Italy | | Citizen Science project sensor.community 42016 |
| -1 | Rain: Rain, Kurtatsch - Cortaccia, Überetsch-Unterland - Oltradige-Bassa Atesina, South Tyrol, Trentino-Alto Adige/Südtirol, 39040, Italy | | Citizen Science project sensor.community 9986 |
| 11 | Rosarno: Rosarno, Reggio Calabria, Calabria, 89025, Italy | | Citizen Science project sensor.community 78066 |
| 17 | SP199: Cicciano, Napoli, Campania, 80033, Italy | | Citizen Science project sensor.community 47733 |
| 13 | | | Citizen Science project sensor.community 52025 |
| 12 | Sankt-Franziskus-Straße - Via San Francesco: Schulzentrum Meran, Sankt-Franziskus-Straße - Via San Francesco, Maria Himmelfahrt - S. Maria Assunta, Gratsch - Quarazze, Meran - Merano, Burggrafenamt - Burgraviato, South Tyrol, Trentino-Alto Adige/Südtirol, 39012, Italy | | Citizen Science project sensor.community 41289 |
| 5 | Sentiero delle Torri: Castello di Arco, Sentiero delle Torri, Mogno, San Martino, Arco, Comunità Alto Garda e Ledro, Provincia di Trento, Trentino – Alto Adige/Südtirol, 38062, Italy | | Citizen Science project sensor.community 100384 |
| 14 | Sp112: Sp112, Roncade, Treviso, Italy, 31056 | | Citizen Science project sensor.community 53581 |
| 18 | Sp654r: Sp654r, Bettola, Piacenza, Italy, 29021 | | Citizen Science project sensor.community 80623 |
| 29 | St Georgen: In der Lahn, St. Georgen, St. Georgen - San Giorgio, Bruneck - Brunico, Pustertal - Val Pusteria, South Tyrol, Trentino – Alto Adige/Südtirol, 39031, Italy | | Oschpile 181839 |
| 24 | | | Citizen Science project sensor.community 39982 |
| 32 | | | Citizen Science project sensor.community 22679 |
| 8 | | | Citizen Science project sensor.community 96848 |
| 6 | Via Assisi: Via Assisi, Collatino, Rome, Rome, Italy | | Citizen Science project sensor.community 54947 |
| 36 | | | Citizen Science project sensor.community 45392 |
| 9 | | | Citizen Science project sensor.community 14007 |
| 32 | | | Citizen Science project sensor.community 69795 |
| 42 | | | Citizen Science project sensor.community 86290 |
| -1 | | | Citizen Science project sensor.community 35128 |
| 13 | | | Citizen Science project sensor.community 48199 |
| 27 | | | Citizen Science project sensor.community 23730 |
| 1 | Via Fabio Filzi: Via Fabio Filzi, Cesano Maderno, Monza E Della Brianza, Italy | | Citizen Science project sensor.community 47345 |
| 9 | Via Faentina: Via Faentina, Il Pellegrino, Florence, Firenze, Italy | | Citizen Science project sensor.community 46465 |
| 22 | | | Citizen Science project sensor.community 32393 |
| 18 | | | Citizen Science project sensor.community 26620 |
| 9 | | | Citizen Science project sensor.community 39448 |
| 13 | | | Citizen Science project sensor.community 16401 |
| 15 | Via Francesco Menestrina: Regole, Novaline, Trento, Territorio Val d'Adige, Provincia di Trento, Trentino-Alto Adige/Südtirol, 38123, Italy | | Citizen Science project sensor.community 45642 |
| 43 | | | Citizen Science project sensor.community 85684 |
| 4 | | | Citizen Science project sensor.community 87021 |
| 9 | Via Ippolito Nievo: Via Ippolito Nievo, PEEP Ramuscello, Ramuscello Vecchio / Ramussiel Vecjo, Ramuscello / Ramussiel, Sesto al Reghena / Siest, Pordenone / Pordenon, Friuli – Venezia Giulia, 33079, Italy | | Citizen Science project sensor.community 96841 |
| 20 | Via John Cage: Via John Cage, Bolognana, Bologna, Bologna, Italy, 40129 | | Citizen Science project sensor.community 38925 |
| 11 | | | Citizen Science project sensor.community 47233 |
| 55 | | | Citizen Science project sensor.community 86866 |
| 14 | Via Maglio: Via Maglio, Carmignano Di Brenta, Padova, 35010, Italy | | Citizen Science project sensor.community 62177 |
| 7 | | | Citizen Science project sensor.community 39164 |
| 0 | Via Medina: Via Medina, Naples, Napoli, 80133, Italy | | Gaia realtime air quality monitoring network 514 |
| 33 | Via Michelino: Via Michelino, Casaralta, Bologna, Bologna, Italy, 40127 | | Citizen Science project sensor.community 58635 |
| 32 | | | Citizen Science project sensor.community 88829 |
| 24 | | | Citizen Science project sensor.community 67805 |
| 11 | | | Citizen Science project sensor.community 31390 |
| 6 | Via Mora: Via Mora, Vicenza, Vicenza, 36100, Italy | | Citizen Science project sensor.community 99340 |
| 5 | Via Mosna di Vigolo: Bondone, Vigolo Baselga, Trento, Territorio Val d'Adige, Provincia di Trento, Trentino – Alto Adige/Südtirol, 38123, Italy | | Citizen Science project sensor.community 100382 |
| 53 | | | Citizen Science project sensor.community 90410 |
| 16 | | | Citizen Science project sensor.community 81324 |
| 12 | | | Citizen Science project sensor.community 99342 |
| 11 | | | Citizen Science project sensor.community 78722 |
| 59 | Via Plebiscito: Via Plebiscito, Antico Corso, Centro storico, Catania, Sicily, 95124, Italy | | Citizen Science project sensor.community 70106 |
| 39 | Via Plezzo: Via Plezzo, Quartiere Feltre, Milan, Milano, 20132, Italy | | Citizen Science project sensor.community 98890 |
| 57 | | | Citizen Science project sensor.community 82198 |
| 10 | Via Roma: Giardino della Prefettura, Via Roma, Piedimonte / Podgora, Gorizia, UTI Collio - Alto Isonzo, Friuli Venezia Giulia, 34170, Italy | | Citizen Science project sensor.community 52041 |
| 28 | | | Citizen Science project sensor.community 12654 |
| 5 | | | Citizen Science project sensor.community 44470 |
| 6 | | | Citizen Science project sensor.community 85919 |
| 6 | Via Sebastiano Caboto: Via Sebastiano Caboto, Talponedo, Porcia, UTI del Noncello, Friuli Venezia Giulia, 33080, Italy | | Citizen Science project sensor.community 55208 |
| 30 | Via Sopracastello: Via Sopracastello, San Daniele del Friuli, Borgo Soprapaludo, San Daniele del Friuli, UTI Collinare, Friuli Venezia Giulia, 33038, Italy | | Citizen Science project sensor.community 48969 |
| 5 | | | Citizen Science project sensor.community 68577 |
| 54 | Via Tolentino: Via Tolentino, Cesena, Forli'-Cesena, Italy, 47521 | | Citizen Science project sensor.community 31364 |
| 5 | | | Citizen Science project sensor.community 53287 |
| 13 | | | Citizen Science project sensor.community 88093 |
| 29 | | | Citizen Science project sensor.community 29744 |
| 13 | | | Citizen Science project sensor.community 81271 |
| 13 | Via XXV Aprile: Fido Felix, Via XXV Aprile, Colle di Santa Maria, Arezzo, Tuscany, 52100, Italy | | Citizen Science project sensor.community 40543 |
| 10 | | | Citizen Science project sensor.community 79149 |
| 3 | Via delle Caserme: Via delle Caserme, Rorai Grande, Pordenone, Friuli – Venezia Giulia, 33170, Italy | | Citizen Science project sensor.community 78960 |