What is the air quality trend in Port Alberni?

Over the past 15 days, Port Alberni had an average AQI of 42 based on station measurements. The worst day was 2026-07-16 with AQI 65.

How is Port Alberni air quality measured?

Air quality in Port Alberni 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 Port Alberni, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

275h

PM2.5 Station

275h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	50	20–109	13.9 µg/m³	20h	2
2026-07-20	38	8–74	9.8 µg/m³	21h	3
2026-07-19	43	12–107	11.1 µg/m³	22h	3
2026-07-18	44	5–106	11.9 µg/m³	24h	2
2026-07-17	58	16–214	22.7 µg/m³	22h	2
2026-07-16	65	9–236	28.8 µg/m³	20h	2
2026-07-15	46	10–68	11.5 µg/m³	20h	2
2026-07-14	36	1–75	9.2 µg/m³	20h	2
2026-07-13	36	10–65	9.0 µg/m³	16h	2
2026-07-12	46	7–177	16.3 µg/m³	20h	1
2026-07-11	46	15–97	12.8 µg/m³	15h	2
2026-07-10	34	21–62	8.4 µg/m³	16h	2
2026-07-09	41	8–63	10.3 µg/m³	15h	2
2026-07-08	40	5–117	11.3 µg/m³	22h	2
2026-07-07	21	14–28	5.0 µg/m³	2h	3

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