What is the air quality trend in West Humber-Clairville?

Over the past 8 days, West Humber-Clairville had an average AQI of 105 based on station measurements. The worst day was 2026-07-16 with AQI 171.

How is West Humber-Clairville air quality measured?

Air quality in West Humber-Clairville 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 West Humber-Clairville, Canada

Name: West Humber-Clairville Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near West Humber-Clairville, Canada.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 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	104	20–129	36.7 µg/m³	43.9	20h	1
2026-07-20	42	14–127	12.7 µg/m³	14.1	24h	1
2026-07-19	70	14–154	23.3 µg/m³	26.2	24h	1
2026-07-18	149	36–192	79.5 µg/m³	84.2	24h	1
2026-07-17	137	63–192	69.9 µg/m³	76.3	24h	2
2026-07-16	171	119–248	95.5 µg/m³	103.3	24h	2
2026-07-15	116	38–170	46.5 µg/m³	49.3	24h	2
2026-07-14	51	49–53	12.4 µg/m³	12.6	3h	1

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