What is the air quality trend in Rockcliffe-Smythe?

Over the past 8 days, Rockcliffe-Smythe had an average AQI of 90 based on station measurements. The worst day was 2026-07-18 with AQI 149.

How is Rockcliffe-Smythe air quality measured?

Air quality in Rockcliffe-Smythe 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 Rockcliffe-Smythe, Canada

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

Historical PM2.5 and AQI trend from monitoring stations near Rockcliffe-Smythe, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 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	98	12–127	34.6 µg/m³	44.1	21h	2
2026-07-20	35	7–123	10.7 µg/m³	12.5	24h	2
2026-07-19	69	13–154	22.9 µg/m³	25.9	24h	1
2026-07-18	149	36–192	79.5 µg/m³	84.2	24h	1
2026-07-17	106	25–161	38.6 µg/m³	43.3	24h	2
2026-07-16	128	81–166	51.6 µg/m³	59.6	24h	2
2026-07-15	89	18–164	32.5 µg/m³	35.1	24h	2
2026-07-14	51	49–53	12.4 µg/m³	12.6	3h	1

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