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

Over the past 15 days, Church-Yonge Corridor had an average AQI of 42 based on station measurements. The worst day was 2026-10-13 with AQI 73.

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

332h

PM2.5 Station

332h · 5 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	16	1–42	3.7 µg/m³	1.2	3h	3
2026-10-20	36	6–118	10.7 µg/m³	22.0	24h	4
2026-10-19	67	2–162	23.8 µg/m³	32.6	24h	2
2026-10-18	16	1–129	4.1 µg/m³	4.7	24h	2
2026-10-17	57	4–166	19.8 µg/m³	33.5	24h	2
2026-10-16	65	2–184	24.4 µg/m³	28.6	20h	1
2026-10-15	66	1–154	22.6 µg/m³	33.0	24h	2
2026-10-14	44	2–103	13.1 µg/m³	21.1	24h	3
2026-10-13	73	12–174	26.7 µg/m³	29.9	24h	2
2026-10-12	52	2–155	17.2 µg/m³	20.4	24h	2
2026-10-11	12	1–25	3.0 µg/m³	1.6	24h	3
2026-10-10	20	4–70	4.7 µg/m³	6.5	24h	4
2026-10-09	71	1–164	27.1 µg/m³	30.6	24h	1
2026-10-08	28	1–115	8.1 µg/m³	12.9	24h	3
2026-10-07	16	1–71	3.8 µg/m³	3.0	21h	3

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