What is the air quality trend in Lethbridge?

Over the past 3 days, Lethbridge had an average AQI of 10 based on station measurements. The worst day was with AQI .

How is Lethbridge air quality measured?

Air quality in Lethbridge 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 Lethbridge, Canada

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

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

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

23h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-03-27	3	3–3	0.8 µg/m³	3h	1
2026-03-26	13	9–18	3.1 µg/m³	14h	1
2026-03-25	15	2–35	3.7 µg/m³	6h	1

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