RSQA - air quality index (historical)

Description

The City of Montreal measures air quality in the form of a numerical value called the “Air Quality Index (AQI).” This data set provides access to historical AQI values, updated daily. ***Note: ** The AQI systems do not change the time: they always use Eastern Standard Time (EST) and not Eastern Daylight Time (EDT). So during daylight savings time, there is a 1-hour time lag in the data. For example, a measurement recorded at 12 pm EST is that of 1 pm EDT. * The daily values, updated every hour, are available [here] (rsqa-air-quality-index). The [list of stations] (rsqa-liste-des-stations) and [sectors] (rsqa-geographic-sectors) linked to RSQA data is also available.

Resources

Name Format Description Link
Detailed AQI by station (2013 to 2015) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/02cfaf0c-3b46-4dac-bf66-acd2ff47361a/download/rsqa-indice-qualite-air-2013-2015.csv
AQI per station (2013 to 2015) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/08da9791-36f8-4f87-b85e-64e690ff06a1/download/rsqa-indice-qualite-air-station-2013-2015.csv
Detailed AQI by station (2022 to 2024) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/0c325562-e742-4e8e-8c36-971f3c9e58cd/download/rsqa-indice-qualite-air-2022-2024.csv
AQI by sector (Historical) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/141029c7-d873-4e5f-94c3-9a77aae4d5f6/download/rsqa-indice-qualite-air-secteur-historique.csv
AQI by sector (2010 to 2012) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/40ffb74c-34f7-404d-894c-9c8b7b0df06e/download/rsqa-indice-qualite-air-secteur-2010-2012.csv
AQI by sector (2019 to 2021) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/42434f5c-2c57-4b66-8880-1ca484930f09/download/rsqa-indice-qualite-air-secteur-2019-2021.csv
AQI per station (2022 to 2024) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/437c1715-508f-4588-8fda-772f35be6bd4/download/rsqa-indice-qualite-air-station-2022-2024.csv
Detailed AQI by station (2025) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/6cf08815-49d2-4d2f-a400-ce36ee52b0fc/download/rsqa-indice-qualite-air-2025-2027.csv
Detailed AQI by station (2010 to 2012) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/6e59c6e9-749b-4237-9c45-5c627be2b7ad/download/rsqa-indice-qualite-air-2010-2012.csv
Detailed AQI by station (Historical) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/73e0c0de-879c-4afa-988a-8cfb36ca95d9/download/rsqa-indice-qualite-air-historique.csv
Detailed AQI by station (2016 to 2018) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/93a3a88e-97ab-4ab1-813f-5419a1dd330d/download/rsqa-indice-qualite-air-2016-2018.csv
AQI by sector (2022 to 2024) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/95582ab7-e2be-416b-8726-51c24faee30e/download/rsqa-indice-qualite-air-secteur-2022-2024.csv
AQI by sector (2025 to 2027) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/975f7a30-24aa-4542-807b-032fbcb836ea/download/rsqa-indice-qualite-air-secteur-2025-2027.csv
AQI per station (2010 to 2012) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/9933509e-caed-430a-bf1f-a4c3f74e0685/download/rsqa-indice-qualite-air-station-2010-2012.csv
AQI per station (Historical) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/a4999b65-f50f-4d25-b39d-2721009ba32a/download/rsqa-indice-qualite-air-station-historique.csv
Detailed AQI by station (2007 to 2009) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/a4a7cc31-6a55-40c3-852b-08ade7e91f8e/download/rsqa-indice-qualite-air-2007-2009.csv
AQI per station (2007 to 2009) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/a7434980-839c-4f2d-9035-95bccca67a6a/download/rsqa-indice-qualite-air-station-2007-2009.csv
AQI by sector (2007 to 2009) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/a9827951-8472-40cc-8c19-c50d86b3de61/download/rsqa-indice-qualite-air-secteur-2007-2009.csv
AQI by sector (2016 to 2018) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/ac5cbc12-5113-4737-81aa-a73fe957eaea/download/rsqa-indice-qualite-air-secteur-2016-2018.csv
AQI per station (2016 to 2018) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/b5dcad47-ce13-4c55-8c56-ede70527e216/download/rsqa-indice-qualite-air-station-2016-2018.csv
AQI per station (2019 to 2021) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/cfd91ae1-82b4-407f-ab26-98d5f3f37395/download/rsqa-indice-qualite-air-station-2019-2021.csv
Detailed AQI by station (2019 to 2021) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/e43dc1d6-fbdd-49c3-a79f-83f63404c281/download/rsqa-indice-qualite-air-2019-2021.csv
AQI by sector (2013 to 2015) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/e7203675-a87f-4290-bcc6-510f0d050687/download/rsqa-indice-qualite-air-secteur-2013-2015.csv
AQI per station (2025 to 2027) CSV https://donnees.montreal.ca/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6/resource/e7343996-f521-47d9-844f-988ac362437f/download/rsqa-indice-qualite-air-station-2025-2027.csv
Original metadata (https://www.donneesquebec.ca) HTML https://www.donneesquebec.ca/recherche/fr/dataset/547b8052-1710-4d69-8760-beaa3aa35ec6

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