What is the air quality trend in Deux-Montagnes?

Over the past 8 days, Deux-Montagnes had an average AQI of 55 based on station measurements. The worst day was 2026-07-14 with AQI 100.

How is Deux-Montagnes air quality measured?

Air quality in Deux-Montagnes is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Deux-Montagnes, Canada

Name: Deux-Montagnes Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Deux-Montagnes, Canada.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	61	29–97	17.8 µg/m³	19.7	22h	2
2026-07-20	35	16–55	8.4 µg/m³	8.9	24h	2
2026-07-19	42	8–144	12.8 µg/m³	14.5	24h	2
2026-07-18	60	15–167	22.0 µg/m³	24.9	24h	2
2026-07-17	17	4–30	4.1 µg/m³	4.5	24h	2
2026-07-16	44	7–68	11.3 µg/m³	12.6	24h	1
2026-07-15	81	12–147	27.2 µg/m³	31.3	24h	1
2026-07-14	100	100–100	35.3 µg/m³	40.8	1h	2

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