RSQAQ - Continuous Data 4 min

RSQAQ - Continuous Data 4 min is an open dataset from Government and Municipalities of Québec with 31 files (CSV, HTML); catalogue record updated 2026-09-16. On CanQuery you can open 30 CSV or Excel files as tables, filter, chart and export up to 10,000 rows as CSV and follow the original downloads.

4-minute concentrations of H2S and SO2 measured continuously by the Quebec Air Quality Monitoring Network (RSQAQ). If you have any questions about this data, contact the Info-Air service: infoair@environnement.gouv.qc.ca. These data exclude those measured on the island of Montreal. For detailed instructions on how to open and navigate data files to easily find accurate data, see the RSQAQ tutorial: Navigating Air Quality Data.

Publisher

Government and Municipalities of Québec

Resources

31

Catalogue metadata updated

2026-09-16