What is the air quality trend in Courtenay?

Over the past 15 days, Courtenay had an average AQI of 42 based on station measurements. The worst day was 2026-07-16 with AQI 61.

How is Courtenay air quality measured?

Air quality in Courtenay 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 Courtenay, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

286h

PM2.5 Station

286h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	48	15–109	12.9 µg/m³	20h	2
2026-07-20	36	8–74	9.3 µg/m³	22h	3
2026-07-19	43	12–107	11.2 µg/m³	24h	3
2026-07-18	51	5–144	15.0 µg/m³	24h	3
2026-07-17	57	19–214	22.3 µg/m³	22h	3
2026-07-16	61	9–236	25.7 µg/m³	21h	2
2026-07-15	44	10–67	11.2 µg/m³	21h	2
2026-07-14	39	1–65	9.7 µg/m³	21h	2
2026-07-13	33	10–65	8.2 µg/m³	18h	2
2026-07-12	49	7–177	16.8 µg/m³	22h	2
2026-07-11	45	15–97	12.4 µg/m³	16h	2
2026-07-10	33	21–62	8.2 µg/m³	16h	2
2026-07-09	41	21–63	10.1 µg/m³	15h	2
2026-07-08	35	5–84	9.6 µg/m³	23h	2
2026-07-07	28	28–28	6.7 µg/m³	1h	3

Back to Courtenay Air Quality