What is the air quality trend in Le Sud-Ouest?

Over the past 15 days, Le Sud-Ouest had an average AQI of 54 based on station measurements. The worst day was 2026-07-13 with AQI 84.

How is Le Sud-Ouest air quality measured?

Air quality in Le Sud-Ouest 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 Le Sud-Ouest, Canada

Name: Le Sud-Ouest Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Le Sud-Ouest, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	57	30–85	16.2 µg/m³	8.8	23h	3
2026-07-20	38	15–56	9.2 µg/m³	4.4	24h	3
2026-07-19	46	9–156	14.8 µg/m³	7.8	24h	3
2026-07-18	58	21–167	21.2 µg/m³	11.1	24h	3
2026-07-17	17	4–33	4.1 µg/m³	1.8	24h	3
2026-07-16	43	5–75	11.1 µg/m³	6.3	24h	3
2026-07-15	82	16–147	27.6 µg/m³	15.7	24h	3
2026-07-14	83	61–113	27.0 µg/m³	14.4	24h	3
2026-07-13	84	64–98	27.7 µg/m³	14.8	24h	3
2026-07-12	55	33–84	15.5 µg/m³	8.3	24h	3
2026-07-11	45	29–60	11.0 µg/m³	5.8	24h	3
2026-07-10	60	36–84	17.0 µg/m³	8.2	24h	3
2026-07-09	40	5–75	11.0 µg/m³	5.0	24h	3
2026-07-08	49	18–68	12.8 µg/m³	6.4	24h	3
2026-07-07	61	61–61	17.0 µg/m³	8.4	1h	3

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