What is the air quality trend in Greenfield Park?

Over the past 8 days, Greenfield Park had an average AQI of 56 based on station measurements. The worst day was 2026-07-14 with AQI 108.

How is Greenfield Park air quality measured?

Air quality in Greenfield Park 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 Greenfield Park, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	54	32–83	14.8 µg/m³	4.7	20h	3
2026-07-20	39	16–56	9.6 µg/m³	2.7	24h	3
2026-07-19	46	9–158	15.1 µg/m³	4.2	24h	3
2026-07-18	59	22–168	21.5 µg/m³	6.3	24h	3
2026-07-17	18	5–34	4.4 µg/m³	1.2	24h	3
2026-07-16	43	6–77	11.3 µg/m³	4.1	24h	3
2026-07-15	82	18–147	27.7 µg/m³	9.8	24h	3
2026-07-14	108	105–110	38.2 µg/m³	12.9	3h	3

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