What is the air quality trend in Willowdale West?

Over the past 8 days, Willowdale West had an average AQI of 51 based on station measurements. The worst day was 2026-05-23 with AQI 68.

How is Willowdale West air quality measured?

Air quality in Willowdale West 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 Willowdale West, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

169h

PM2.5 Station

169h · 9 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	40	27–81	10.9 µg/m³	2.0	8h	9
2026-05-29	48	15–116	13.7 µg/m³	12.1	24h	11
2026-05-28	43	18–93	11.5 µg/m³	1.6	24h	11
2026-05-27	52	21–107	14.5 µg/m³	6.1	24h	11
2026-05-26	50	17–152	14.2 µg/m³	6.0	24h	10
2026-05-25	67	24–156	20.6 µg/m³	11.2	24h	12
2026-05-24	46	12–106	12.4 µg/m³	7.1	24h	11
2026-05-23	68	33–125	20.3 µg/m³	3.1	17h	12

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