What is the air quality trend in Moncton?

Over the past 20 days, Moncton had an average AQI of 50 based on station measurements. The worst day was 2026-05-19 with AQI 138.

How is Moncton air quality measured?

Air quality in Moncton 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 Moncton, Canada

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

196h

PM2.5 Station

196h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	29	29–29	7.0 µg/m³	1h	1
2026-05-29	46	14–177	17.6 µg/m³	10h	1
2026-05-28	20	3–52	4.9 µg/m³	11h	1
2026-05-27	39	14–86	11.4 µg/m³	6h	1
2026-05-26	56	13–147	17.2 µg/m³	7h	1
2026-05-25	42	16–95	12.1 µg/m³	8h	1
2026-05-24	38	10–70	10.3 µg/m³	8h	2
2026-05-23	23	13–28	5.5 µg/m³	4h	1
2026-05-22	23	5–45	5.5 µg/m³	5h	1
2026-05-21	76	16–177	30.1 µg/m³	8h	1
2026-05-19	138	138–138	50.5 µg/m³	1h	1
2026-05-18	28	26–30	6.8 µg/m³	3h	1
2026-05-17	36	2–87	10.8 µg/m³	4h	2
2026-05-16	81	5–188	39.7 µg/m³	13h	2
2026-05-15	62	1–169	21.8 µg/m³	18h	2
2026-05-14	76	16–240	30.9 µg/m³	17h	2
2026-05-13	60	12–155	18.9 µg/m³	19h	2
2026-05-12	48	9–176	17.2 µg/m³	15h	1
2026-05-11	47	11–89	13.3 µg/m³	19h	4
2026-05-10	49	3–124	14.7 µg/m³	19h	3

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