What is the air quality trend in Nanaimo?

Over the past 8 days, Nanaimo had an average AQI of 52 based on station measurements. The worst day was 2026-07-16 with AQI 91.

How is Nanaimo air quality measured?

Air quality in Nanaimo 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 Nanaimo, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	48	23–77	12.5 µg/m³	20h	4
2026-07-20	33	13–96	8.5 µg/m³	24h	4
2026-07-19	39	15–126	10.3 µg/m³	24h	4
2026-07-18	36	17–67	9.0 µg/m³	24h	4
2026-07-17	63	18–188	23.0 µg/m³	24h	3
2026-07-16	91	9–284	45.2 µg/m³	22h	3
2026-07-15	64	23–234	26.6 µg/m³	21h	3
2026-07-14	42	22–61	10.9 µg/m³	2h	2

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