What is the air quality trend in Whitby?

Over the past 4 days, Whitby had an average AQI of 67 based on station measurements. The worst day was 2026-07-17 with AQI 112.

How is Whitby air quality measured?

Air quality in Whitby 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 Whitby, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

15h

PM2.5 Station

15h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-20	32	13–53	7.8 µg/m³	5h	1
2026-07-19	63	25–165	25.9 µg/m³	4h	1
2026-07-18	62	42–80	18.1 µg/m³	4h	1
2026-07-17	112	107–117	40.0 µg/m³	2h	1

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