What is the air quality trend in Steeles?

Over the past 8 days, Steeles had an average AQI of 48 based on station measurements. The worst day was 2026-05-25 with AQI 62.

How is Steeles air quality measured?

Air quality in Steeles 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 Steeles, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 11 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	34	23–56	8.4 µg/m³	2.4	5h	8
2026-05-29	45	13–118	12.0 µg/m³	12.1	24h	11
2026-05-28	41	9–172	12.9 µg/m³	1.6	24h	11
2026-05-27	51	20–128	14.5 µg/m³	6.1	24h	11
2026-05-26	46	20–99	12.7 µg/m³	6.0	24h	10
2026-05-25	62	35–161	18.6 µg/m³	11.2	24h	12
2026-05-24	48	10–104	13.2 µg/m³	7.1	24h	12
2026-05-23	60	21–132	17.4 µg/m³	2.8	19h	12

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