What is the air quality trend in Church-Yonge Corridor?

Over the past 7 days, Church-Yonge Corridor had an average AQI of 77 based on station measurements. The worst day was 2026-07-18 with AQI 119.

How is Church-Yonge Corridor air quality measured?

Air quality in Church-Yonge Corridor 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 Church-Yonge Corridor, Canada

Name: Church-Yonge Corridor Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Church-Yonge Corridor, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

105h

PM2.5 Station

105h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	96	8–127	34.1 µg/m³	44.9	21h	1
2026-07-20	36	1–120	10.8 µg/m³	14.3	16h	1
2026-07-19	44	12–161	15.7 µg/m³	4.4	7h	3
2026-07-18	119	42–188	67.2 µg/m³	—	4h	5
2026-07-17	75	1–121	25.1 µg/m³	30.0	15h	1
2026-07-16	107	71–151	37.5 µg/m³	45.6	24h	1
2026-07-15	66	11–114	21.8 µg/m³	24.8	18h	1

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