What is the air quality trend in Townline?

Over the past 14 days, Townline had an average AQI of 23 based on station measurements. The worst day was 2026-07-21 with AQI 46.

How is Townline air quality measured?

Air quality in Townline 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 Townline, Canada

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

160h

PM2.5 Station

160h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	46	26–57	11.3 µg/m³	8h	1
2026-07-20	19	1–42	4.5 µg/m³	9h	1
2026-07-19	21	9–30	5.0 µg/m³	17h	1
2026-07-18	21	13–34	4.9 µg/m³	10h	1
2026-07-17	19	9–34	4.5 µg/m³	7h	1
2026-07-16	34	30–36	8.0 µg/m³	4h	1
2026-07-15	35	25–42	8.3 µg/m³	10h	1
2026-07-14	22	13–32	5.2 µg/m³	7h	1
2026-07-13	20	9–25	4.7 µg/m³	15h	1
2026-07-12	21	13–38	5.1 µg/m³	17h	1
2026-07-11	17	11–25	4.1 µg/m³	17h	1
2026-07-10	18	7–34	4.4 µg/m³	20h	1
2026-07-09	21	14–30	4.9 µg/m³	12h	1
2026-07-08	16	9–22	3.8 µg/m³	7h	1

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