What is the air quality trend in Mount Pearl?

Over the past 15 days, Mount Pearl had an average AQI of 32 based on station measurements. The worst day was 2026-10-14 with AQI 48.

How is Mount Pearl air quality measured?

Air quality in Mount Pearl 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 Mount Pearl, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

278h

PM2.5 Station

278h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	27	27–27	6.4 µg/m³	1h	4
2026-10-20	29	2–96	8.0 µg/m³	23h	2
2026-10-19	48	12–157	14.8 µg/m³	24h	3
2026-10-18	18	5–38	4.2 µg/m³	22h	2
2026-10-17	34	10–101	9.2 µg/m³	21h	3
2026-10-16	46	6–158	13.9 µg/m³	21h	3
2026-10-15	45	5–98	13.1 µg/m³	20h	3
2026-10-14	48	9–182	17.4 µg/m³	22h	3
2026-10-13	34	10–158	10.0 µg/m³	24h	3
2026-10-12	26	7–73	6.5 µg/m³	23h	3
2026-10-11	34	11–74	8.8 µg/m³	24h	3
2026-10-10	27	1–77	6.7 µg/m³	23h	3
2026-10-09	33	12–68	8.4 µg/m³	21h	3
2026-10-08	22	8–33	5.3 µg/m³	6h	1
2026-10-07	18	6–25	4.4 µg/m³	3h	1

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