What is the air quality trend in Saint-Charles-Borromée?

Over the past 15 days, Saint-Charles-Borromée had an average AQI of 54 based on station measurements. The worst day was 2026-05-24 with AQI 76.

How is Saint-Charles-Borromée air quality measured?

Air quality in Saint-Charles-Borromée 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 Saint-Charles-Borromée, Canada

Name: Saint-Charles-Borromée Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Saint-Charles-Borromée, 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 · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	40	19–69	10.8 µg/m³	7h	6
2026-05-29	57	20–164	18.5 µg/m³	22h	5
2026-05-28	38	6–163	11.9 µg/m³	19h	4
2026-05-27	55	11–185	20.5 µg/m³	23h	5
2026-05-26	70	15–179	26.2 µg/m³	22h	5
2026-05-25	75	9–374	34.6 µg/m³	23h	4
2026-05-24	76	18–151	25.0 µg/m³	21h	4
2026-05-23	61	15–179	24.7 µg/m³	23h	3
2026-05-22	53	11–155	16.1 µg/m³	21h	4
2026-05-21	69	4–176	23.8 µg/m³	22h	4
2026-05-20	50	9–129	14.8 µg/m³	23h	3
2026-05-19	50	7–154	15.3 µg/m³	17h	3
2026-05-18	32	12–91	8.7 µg/m³	17h	3
2026-05-17	50	12–138	15.9 µg/m³	13h	3
2026-05-16	35	10–82	9.5 µg/m³	12h	6

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