What is the air quality trend in Greater Sudbury?

Over the past 12 days, Greater Sudbury had an average AQI of 61 based on station measurements. The worst day was 2026-05-27 with AQI 152.

How is Greater Sudbury air quality measured?

Air quality in Greater Sudbury 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 Greater Sudbury, Canada

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

39h

PM2.5 Station

39h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-08	58	32–78	17.1 µg/m³	3h	1
2026-06-07	22	22–22	5.3 µg/m³	1h	1
2026-06-04	55	7–96	17.2 µg/m³	4h	1
2026-06-03	63	63–63	17.8 µg/m³	1h	1
2026-06-02	127	127–127	46.1 µg/m³	1h	1
2026-06-01	36	8–91	10.8 µg/m³	4h	1
2026-05-31	45	24–81	13.1 µg/m³	3h	1
2026-05-30	40	10–122	12.2 µg/m³	6h	1
2026-05-29	50	15–145	15.3 µg/m³	6h	1
2026-05-28	54	14–161	22.0 µg/m³	4h	1
2026-05-27	152	40–275	92.2 µg/m³	5h	1
2026-05-26	31	31–31	7.4 µg/m³	1h	1

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