What is the air quality trend in Innisfil?

Over the past 21 days, Innisfil had an average AQI of 37 based on station measurements. The worst day was 2026-05-18 with AQI 51.

How is Innisfil air quality measured?

Air quality in Innisfil 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 Innisfil, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

480h

PM2.5 Station

480h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	28	18–48	6.7 µg/m³	9h	3
2026-05-29	33	9–111	8.9 µg/m³	24h	4
2026-05-28	26	11–76	6.6 µg/m³	24h	4
2026-05-27	38	12–101	10.5 µg/m³	24h	4
2026-05-26	39	15–87	10.2 µg/m³	24h	4
2026-05-25	47	17–166	14.7 µg/m³	24h	4
2026-05-24	30	10–152	8.5 µg/m³	24h	4
2026-05-23	44	14–95	12.4 µg/m³	24h	5
2026-05-22	26	10–86	6.7 µg/m³	24h	4
2026-05-21	39	8–114	10.3 µg/m³	24h	5
2026-05-20	42	7–96	11.3 µg/m³	24h	4
2026-05-19	37	15–124	9.8 µg/m³	24h	4
2026-05-18	51	21–183	16.1 µg/m³	24h	4
2026-05-17	49	26–80	13.2 µg/m³	24h	2
2026-05-16	43	19–91	11.8 µg/m³	24h	4
2026-05-15	32	10–97	8.3 µg/m³	24h	5
2026-05-14	35	5–67	8.8 µg/m³	24h	4
2026-05-13	41	17–64	10.3 µg/m³	24h	4
2026-05-12	31	4–71	7.9 µg/m³	24h	4
2026-05-11	44	3–97	12.5 µg/m³	24h	5
2026-05-10	32	9–109	8.4 µg/m³	15h	5

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