What is the air quality trend in Bangor?

Over the past 7 days, Bangor had an average AQI of 51 based on station measurements. The worst day was 2026-07-16 with AQI 64.

How is Bangor air quality measured?

Air quality in Bangor 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 Bangor, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Bangor, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

126h

PM2.5 Station

126h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	39	15–62	9.7 µg/m³	14h	1
2026-07-20	57	24–137	16.7 µg/m³	17h	1
2026-07-19	53	7–119	15.6 µg/m³	21h	2
2026-07-18	45	15–138	13.2 µg/m³	19h	1
2026-07-17	53	10–300	23.6 µg/m³	18h	1
2026-07-16	64	18–191	23.1 µg/m³	18h	2
2026-07-15	49	12–138	14.6 µg/m³	19h	1

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