What is the air quality trend in Alma?

Over the past 14 days, Alma had an average AQI of 35 based on station measurements. The worst day was 2026-10-08 with AQI 57.

How is Alma air quality measured?

Air quality in Alma 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 Alma, Canada

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

285h

PM2.5 Station

285h · 2 stations

Temperature GFS model

54pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	28	13–59	6.9 µg/m³	24h	3
2026-10-19	34	15–83	8.4 µg/m³	23h	3
2026-10-18	27	3–55	6.4 µg/m³	23h	3
2026-10-17	38	5–71	9.9 µg/m³	24h	3
2026-10-16	38	8–107	10.0 µg/m³	23h	4
2026-10-15	30	13–84	7.6 µg/m³	24h	3
2026-10-14	30	9–70	7.6 µg/m³	24h	3
2026-10-13	39	18–73	10.0 µg/m³	23h	3
2026-10-12	35	13–74	8.9 µg/m³	21h	3
2026-10-11	34	7–69	8.6 µg/m³	23h	3
2026-10-10	44	2–97	11.9 µg/m³	22h	3
2026-10-09	36	5–92	9.4 µg/m³	21h	3
2026-10-08	57	4–180	22.9 µg/m³	8h	2
2026-10-07	32	22–42	7.7 µg/m³	2h	2

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