What is the air quality trend in Brantford?

Over the past 15 days, Brantford had an average AQI of 52 based on station measurements. The worst day was 2026-05-20 with AQI 88.

How is Brantford air quality measured?

Air quality in Brantford 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 Brantford, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 10 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	41	12–66	10.8 µg/m³	3.6	11h	9
2026-05-29	50	12–136	14.2 µg/m³	2.7	24h	12
2026-05-28	38	13–95	10.3 µg/m³	2.8	24h	10
2026-05-27	56	20–163	17.4 µg/m³	5.4	24h	10
2026-05-26	34	13–74	8.5 µg/m³	5.7	24h	9
2026-05-25	65	20–210	23.2 µg/m³	11.2	24h	11
2026-05-24	48	13–86	13.3 µg/m³	3.3	24h	12
2026-05-23	61	23–133	17.7 µg/m³	3.8	24h	12
2026-05-22	38	14–70	9.6 µg/m³	2.9	24h	10
2026-05-21	67	20–160	20.9 µg/m³	2.2	24h	12
2026-05-20	88	20–314	39.8 µg/m³	6.0	24h	11
2026-05-19	47	16–146	13.6 µg/m³	6.9	24h	11
2026-05-18	43	15–91	11.4 µg/m³	17.6	24h	8
2026-05-17	52	17–155	15.5 µg/m³	22.3	24h	4
2026-05-16	55	23–156	16.7 µg/m³	14.4	12h	12

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