What is the air quality trend in Stonebridge?

Over the past 21 days, Stonebridge had an average AQI of 78 based on station measurements. The worst day was 2026-05-27 with AQI 127.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

408h

PM2.5 Station

408h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	62	20–122	18.9 µg/m³	12h	2
2026-05-29	78	11–337	35.3 µg/m³	19h	1
2026-05-28	52	11–161	16.4 µg/m³	17h	1
2026-05-27	127	30–366	67.1 µg/m³	22h	2
2026-05-26	99	18–500	78.4 µg/m³	21h	2
2026-05-25	88	18–173	32.3 µg/m³	20h	2
2026-05-24	78	17–173	28.9 µg/m³	16h	2
2026-05-23	75	10–233	31.1 µg/m³	22h	2
2026-05-22	80	2–152	27.3 µg/m³	20h	2
2026-05-21	84	18–221	35.5 µg/m³	21h	2
2026-05-20	73	12–170	26.9 µg/m³	20h	2
2026-05-19	78	3–247	35.1 µg/m³	17h	2
2026-05-18	75	7–146	25.0 µg/m³	22h	2
2026-05-17	51	10–157	16.0 µg/m³	19h	1
2026-05-16	74	10–171	26.9 µg/m³	20h	1
2026-05-15	81	22–161	27.7 µg/m³	21h	2
2026-05-14	77	12–203	28.1 µg/m³	24h	2
2026-05-13	76	8–156	24.9 µg/m³	22h	2
2026-05-12	98	2–281	42.9 µg/m³	21h	2
2026-05-11	71	7–159	24.1 µg/m³	22h	2
2026-05-10	72	22–150	22.9 µg/m³	10h	2

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