What is the air quality trend in Sorel-Tracy?

Over the past 15 days, Sorel-Tracy had an average AQI of 45 based on station measurements. The worst day was 2026-05-26 with AQI 66.

How is Sorel-Tracy air quality measured?

Air quality in Sorel-Tracy 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 Sorel-Tracy, Canada

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

Historical PM2.5 and AQI trend from monitoring stations near Sorel-Tracy, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	29	6–62	7.3 µg/m³	9h	11
2026-05-29	47	20–104	12.9 µg/m³	24h	11
2026-05-28	33	9–90	8.9 µg/m³	24h	9
2026-05-27	48	17–158	14.5 µg/m³	24h	11
2026-05-26	66	21–157	20.9 µg/m³	24h	11
2026-05-25	63	7–210	23.5 µg/m³	24h	9
2026-05-24	59	17–103	17.5 µg/m³	24h	10
2026-05-23	46	16–144	13.6 µg/m³	24h	9
2026-05-22	42	12–97	11.7 µg/m³	24h	9
2026-05-21	53	8–154	16.4 µg/m³	24h	8
2026-05-20	46	20–103	12.7 µg/m³	24h	8
2026-05-19	51	18–151	14.1 µg/m³	24h	8
2026-05-18	29	12–95	7.9 µg/m³	24h	7
2026-05-17	37	9–93	10.1 µg/m³	24h	6
2026-05-16	29	4–65	7.3 µg/m³	15h	12

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