What is the air quality trend in Seafair?

Over the past 15 days, Seafair had an average AQI of 20 based on station measurements. The worst day was 2026-07-21 with AQI 68.

How is Seafair air quality measured?

Air quality in Seafair 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 Seafair, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

263h

PM2.5 Station

263h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	68	47–88	20.1 µg/m³	21.5	22h	2
2026-07-20	20	5–48	4.9 µg/m³	5.5	24h	2
2026-07-19	14	6–21	3.5 µg/m³	3.8	24h	2
2026-07-18	21	13–34	5.1 µg/m³	5.7	24h	2
2026-07-17	36	22–52	8.7 µg/m³	9.6	24h	2
2026-07-16	33	16–45	7.8 µg/m³	8.6	24h	1
2026-07-15	32	12–45	7.6 µg/m³	8.1	24h	1
2026-07-14	36	2–76	9.4 µg/m³	10.1	22h	1
2026-07-13	4	4–4	1.0 µg/m³	1.0	2h	1
2026-07-12	4	4–4	1.0 µg/m³	1.2	4h	1
2026-07-11	6	4–11	1.4 µg/m³	1.5	12h	1
2026-07-10	6	1–10	1.4 µg/m³	1.6	21h	1
2026-07-09	5	4–7	1.2 µg/m³	1.4	16h	1
2026-07-08	12	4–27	3.0 µg/m³	3.1	19h	1
2026-07-07	12	12–12	2.9 µg/m³	2.9	1h	1

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