Stay updated with real-time air quality in Brunswick, Maine featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
37
Good
Brunswick, Maine
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.80 μg/m³
0
55
155
255
425
605+
39.74 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
14.41 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Brunswick, Maine
Scroll To Air Quality MapLoading...
AQI 36
Good
3.72μg/m³
PM2.5
18.15μg/m³
PM10
39.21ppb
O3
0.58ppb
SO2
14.28ppb
NO2
0.22ppm
CO
AQI 36
Good
3.74μg/m³
PM2.5
18.32μg/m³
PM10
39.20ppb
O3
0.58ppb
SO2
14.26ppb
NO2
0.22ppm
CO
AQI 63
Moderate
10.13μg/m³
PM2.5
80.48μg/m³
PM10
37.07ppb
O3
0.65ppb
SO2
14.02ppb
NO2
0.27ppm
CO
AQI 64
Moderate
10.28μg/m³
PM2.5
82.18μg/m³
PM10
36.98ppb
O3
0.65ppb
SO2
14.05ppb
NO2
0.27ppm
CO
AQI 62
Moderate
10.03μg/m³
PM2.5
77.83μg/m³
PM10
37.27ppb
O3
0.65ppb
SO2
13.96ppb
NO2
0.27ppm
CO
AQI 35
Good
6.50μg/m³
PM2.5
27.46μg/m³
PM10
37.75ppb
O3
0.66ppb
SO2
14.33ppb
NO2
0.26ppm
CO
Air quality measurements for Maine, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Brunswick, Maine is updated on an hourly basis.
The worst air quality in Brunswick, Maine was recorded at 04:00:00 on 2025-12-28.
The best air quality in Brunswick, Maine was recorded at 11:00:00 on 2025-12-27.
The real-time air quality index in Brunswick, Maine is 37, currently categorized as Good.
The most common pollutant in Brunswick, Maine is O3.
If the air quality in Brunswick, Maine is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Brunswick, Maine at present are 5.134 μg/m3.
The current PM10 levels in Brunswick, Maine are 14.801 μg/m3.
The current carbon monoxide (CO) level in Brunswick, Maine is 0.226 ppm.
The current sulfur dioxide (SO2) levels in Brunswick, Maine are 0.584 ppb.
The current ozone (O3) levels at Brunswick, Maine is 39.737 ppm.
The current nitrogen dioxide (NO2) levels at Brunswick, Maine is 14.415 ppb.
All Rights Reserved © Ambee Inc. 2025