What is the air quality trend in Sorel-Tracy?

Over the past 21 days, Sorel-Tracy had an average AQI of 39 based on station measurements. The worst day was 2026-05-26 with AQI 65.

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

480h

PM2.5 Station

480h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	17	4–35	4.1 µg/m³	8h	9
2026-05-29	44	16–139	12.4 µg/m³	24h	8
2026-05-28	28	9–112	7.4 µg/m³	24h	6
2026-05-27	47	8–158	14.5 µg/m³	24h	8
2026-05-26	65	20–158	21.3 µg/m³	24h	9
2026-05-25	47	6–159	14.2 µg/m³	24h	7
2026-05-24	50	11–122	14.5 µg/m³	24h	8
2026-05-23	30	12–97	8.0 µg/m³	24h	6
2026-05-22	36	10–112	10.4 µg/m³	24h	5
2026-05-21	45	5–124	14.2 µg/m³	24h	6
2026-05-20	44	12–102	11.5 µg/m³	24h	4
2026-05-19	48	23–151	13.4 µg/m³	24h	4
2026-05-18	28	12–134	7.7 µg/m³	24h	4
2026-05-17	30	7–93	7.6 µg/m³	24h	4
2026-05-16	30	4–81	7.7 µg/m³	24h	10
2026-05-15	43	21–94	11.3 µg/m³	24h	12
2026-05-14	46	16–103	12.6 µg/m³	24h	13
2026-05-13	49	14–115	14.1 µg/m³	24h	13
2026-05-12	39	8–109	10.5 µg/m³	24h	12
2026-05-11	36	11–71	9.3 µg/m³	24h	12
2026-05-10	30	15–63	7.4 µg/m³	16h	13

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