What is the air quality trend in Stonebridge?

Over the past 21 days, Stonebridge had an average AQI of 41 based on station measurements. The worst day was 2026-10-21 with AQI 66.

How is Stonebridge air quality measured?

Air quality in Stonebridge 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 Stonebridge, Canada

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

Historical PM2.5 and AQI trend from monitoring stations near Stonebridge, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

189h

PM2.5 Station

189h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	66	66–66	19.2 µg/m³	1h	1
2026-10-20	49	17–154	14.1 µg/m³	13h	1
2026-10-19	44	15–112	12.4 µg/m³	7h	1
2026-10-18	63	5–186	29.1 µg/m³	7h	1
2026-10-17	41	10–154	12.6 µg/m³	10h	1
2026-10-16	44	9–101	12.7 µg/m³	10h	1
2026-10-15	53	3–124	16.0 µg/m³	15h	1
2026-10-14	63	17–175	23.7 µg/m³	14h	1
2026-10-13	53	16–162	17.4 µg/m³	14h	1
2026-10-12	25	6–97	6.8 µg/m³	12h	1
2026-10-11	37	2–127	10.6 µg/m³	15h	1
2026-10-10	53	16–130	14.6 µg/m³	13h	1
2026-10-09	50	2–160	16.3 µg/m³	15h	1
2026-10-08	22	9–39	5.4 µg/m³	6h	1
2026-10-07	27	11–58	6.7 µg/m³	5h	1
2026-10-06	25	13–50	5.9 µg/m³	8h	1
2026-10-05	28	10–55	6.9 µg/m³	7h	1
2026-10-04	11	1–21	2.7 µg/m³	4h	1
2026-10-03	50	50–50	12.0 µg/m³	1h	1
2026-10-02	35	16–53	8.5 µg/m³	7h	1
2026-10-01	26	16–36	6.3 µg/m³	5h	1

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