What is the air quality trend in Terrace?

Over the past 20 days, Terrace had an average AQI of 45 based on station measurements. The worst day was 2026-05-27 with AQI 69.

How is Terrace air quality measured?

Air quality in Terrace 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 Terrace, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

370h

PM2.5 Station

370h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	39	6–157	11.8 µg/m³	22h	2
2026-05-29	35	10–76	9.4 µg/m³	20h	2
2026-05-28	35	14–80	9.0 µg/m³	23h	2
2026-05-27	69	5–322	33.3 µg/m³	16h	2
2026-05-26	39	17–76	10.1 µg/m³	16h	2
2026-05-25	56	14–160	18.5 µg/m³	20h	2
2026-05-24	61	13–155	19.0 µg/m³	23h	2
2026-05-23	33	10–116	9.9 µg/m³	19h	2
2026-05-22	31	3–110	8.2 µg/m³	17h	2
2026-05-21	44	3–126	12.3 µg/m³	21h	2
2026-05-20	57	18–154	18.0 µg/m³	15h	2
2026-05-19	64	4–151	20.6 µg/m³	10h	2
2026-05-18	34	3–79	9.1 µg/m³	15h	2
2026-05-17	39	6–91	11.1 µg/m³	9h	1
2026-05-16	52	2–122	16.1 µg/m³	20h	2
2026-05-15	41	10–96	10.9 µg/m³	22h	2
2026-05-14	47	5–92	13.9 µg/m³	19h	3
2026-05-13	37	15–88	10.1 µg/m³	20h	3
2026-05-12	46	9–168	14.3 µg/m³	23h	3
2026-05-11	46	11–93	13.0 µg/m³	20h	3

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