What is the air quality trend in Stoney Creek?

Over the past 12 days, Stoney Creek had an average AQI of 75 based on station measurements. The worst day was 2026-07-17 with AQI 300.

How is Stoney Creek air quality measured?

Air quality in Stoney Creek 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 Stoney Creek, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

88h

PM2.5 Station

88h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	37	37–37	8.8 µg/m³	1h	4
2026-07-20	45	25–94	13.1 µg/m³	6h	4
2026-07-19	78	29–160	29.7 µg/m³	4h	4
2026-07-18	117	31–191	68.6 µg/m³	4h	4
2026-07-17	300	294–305	249.9 µg/m³	2h	4
2026-07-14	59	57–60	15.7 µg/m³	3h	4
2026-07-13	66	57–70	19.0 µg/m³	8h	4
2026-07-12	61	53–73	17.0 µg/m³	7h	4
2026-07-11	46	31–66	11.6 µg/m³	14h	4
2026-07-10	30	20–37	7.2 µg/m³	15h	4
2026-07-09	37	30–50	8.9 µg/m³	13h	4
2026-07-08	25	17–44	6.0 µg/m³	11h	4

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