What is the air quality trend in Tsawwassen?

Over the past 15 days, Tsawwassen had an average AQI of 48 based on station measurements. The worst day was 2026-05-25 with AQI 76.

How is Tsawwassen air quality measured?

Air quality in Tsawwassen 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 Tsawwassen, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	21	21–21	5.0 µg/m³	1.1	1h	4
2026-05-29	43	16–105	11.8 µg/m³	2.3	24h	19
2026-05-28	39	16–99	10.7 µg/m³	2.3	24h	18
2026-05-27	45	18–129	12.6 µg/m³	1.8	24h	19
2026-05-26	49	12–121	13.7 µg/m³	1.8	24h	18
2026-05-25	76	20–169	26.6 µg/m³	3.0	24h	20
2026-05-24	58	19–97	16.8 µg/m³	3.7	24h	22
2026-05-23	53	17–101	15.1 µg/m³	4.4	24h	18
2026-05-22	49	20–116	13.6 µg/m³	3.1	24h	19
2026-05-21	66	14–158	20.9 µg/m³	2.3	24h	23
2026-05-20	69	17–165	23.4 µg/m³	1.7	24h	18
2026-05-19	53	13–166	17.4 µg/m³	2.4	24h	16
2026-05-18	31	6–81	7.7 µg/m³	2.1	24h	14
2026-05-17	32	2–126	9.7 µg/m³	1.3	24h	8
2026-05-16	37	1–175	11.8 µg/m³	1.2	23h	21

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