What is the air quality trend in Bay Street Corridor?

Over the past 7 days, Bay Street Corridor had an average AQI of 77 based on station measurements. The worst day was 2026-07-18 with AQI 119.

How is Bay Street Corridor air quality measured?

Air quality in Bay Street Corridor 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 Bay Street Corridor, Canada

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

Historical PM2.5 and AQI trend from monitoring stations near Bay Street Corridor, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

106h

PM2.5 Station

106h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	94	8–127	33.0 µg/m³	43.5	22h	1
2026-07-20	36	1–120	10.8 µg/m³	14.3	16h	1
2026-07-19	44	12–161	15.7 µg/m³	4.4	7h	3
2026-07-18	119	42–188	67.3 µg/m³	—	4h	5
2026-07-17	75	1–121	25.1 µg/m³	30.0	15h	1
2026-07-16	107	71–151	37.5 µg/m³	45.6	24h	1
2026-07-15	66	11–114	21.8 µg/m³	24.8	18h	1

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