What is the air quality trend in Collingwood?

Over the past 8 days, Collingwood had an average AQI of 95 based on station measurements. The worst day was 2026-07-16 with AQI 154.

How is Collingwood air quality measured?

Air quality in Collingwood 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 Collingwood, Canada

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	76	63–119	24.2 µg/m³	20h	2
2026-07-20	26	12–60	6.4 µg/m³	24h	2
2026-07-19	44	18–86	12.1 µg/m³	24h	2
2026-07-18	114	21–158	42.6 µg/m³	24h	2
2026-07-17	106	41–180	45.3 µg/m³	24h	2
2026-07-16	154	85–201	77.3 µg/m³	24h	2
2026-07-15	121	45–157	44.9 µg/m³	24h	2
2026-07-14	125	89–154	46.7 µg/m³	3h	2

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