What is the air quality trend in Surrey?

Over the past 21 days, Surrey had an average AQI of 16 based on station measurements. The worst day was 2026-07-21 with AQI 72.

How is Surrey air quality measured?

Air quality in Surrey 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 Surrey, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

454h

PM2.5 Station

454h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	72	45–98	22.3 µg/m³	23h	1
2026-07-20	24	9–87	6.0 µg/m³	24h	1
2026-07-19	9	6–13	2.1 µg/m³	24h	1
2026-07-18	11	6–25	2.7 µg/m³	24h	1
2026-07-17	16	8–25	3.7 µg/m³	24h	1
2026-07-16	22	17–32	5.3 µg/m³	24h	1
2026-07-15	24	18–31	5.7 µg/m³	24h	1
2026-07-14	15	10–22	3.7 µg/m³	24h	1
2026-07-13	3	2–5	0.6 µg/m³	24h	1
2026-07-12	3	1–4	0.7 µg/m³	24h	1
2026-07-11	8	2–47	2.0 µg/m³	24h	1
2026-07-10	4	1–7	1.1 µg/m³	24h	1
2026-07-09	5	3–10	1.2 µg/m³	24h	1
2026-07-08	12	4–20	3.0 µg/m³	23h	1
2026-07-07	27	9–51	6.6 µg/m³	21h	1
2026-07-06	49	23–86	12.7 µg/m³	13h	2
2026-07-05	17	6–86	4.4 µg/m³	24h	1
2026-07-04	4	2–9	1.0 µg/m³	24h	1
2026-07-03	3	1–9	0.7 µg/m³	24h	1
2026-07-02	11	8–14	2.7 µg/m³	13h	2
2026-07-01	14	14–14	3.4 µg/m³	1h	1

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