Stay updated with real-time air quality in Maine, USA 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)
60
Moderate
Maine, USA
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.09 μg/m³
0
55
155
255
425
605+
18.91 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
15.15 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Maine, USA
Maine, USA
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 60
Moderate
13.64μg/m³
PM2.5
45.68μg/m³
PM10
23.97ppb
O3
0.38ppb
SO2
14.45ppb
NO2
0.28ppm
CO
AQI 60
Moderate
13.57μg/m³
PM2.5
39.46μg/m³
PM10
18.14ppb
O3
0.51ppb
SO2
13.91ppb
NO2
0.23ppm
CO
AQI 62
Moderate
14.64μg/m³
PM2.5
50.86μg/m³
PM10
19.27ppb
O3
0.37ppb
SO2
16.14ppb
NO2
0.29ppm
CO
AQI 62
Moderate
14.73μg/m³
PM2.5
57.69μg/m³
PM10
17.81ppb
O3
0.23ppb
SO2
18.90ppb
NO2
0.38ppm
CO
AQI 75
Moderate
22.41μg/m³
PM2.5
56.66μg/m³
PM10
11.78ppb
O3
0.35ppb
SO2
25.40ppb
NO2
0.38ppm
CO
AQI 62
Moderate
14.64μg/m³
PM2.5
58.92μg/m³
PM10
16.64ppb
O3
0.61ppb
SO2
15.54ppb
NO2
0.48ppm
CO
Air quality data and pollutant measurements for Maine, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Maine, USA is updated every hour.
The worst air quality in Maine, USA in the last 24 hours was observed at 05:00:00 on 2026-01-18.
In the last 24 hrs, the best air quality in Maine, USA was observed at 01:00:00 on 2026-01-18.
The current air quality in Maine, USA is 60, categorized as Moderate based on real-time data.
The most common pollutant in Maine, USA is PM2.5.
If the air quality in Maine, USA is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Maine, USA is 13.889 μg/m3.
The current PM10 concentration at Maine, USA is 31.094 μg/m3.
The current carbon monoxide (CO) concentration at Maine, USA is 0.228 ppm.
The current sulfur dioxide (SO2) concentration at Maine, USA is 0.397 ppb.
The current ozone (O3) concentration at Maine, USA is 18.913 ppm.
The current nitrogen dioxide (NO2) concentration at Maine, USA is 15.149 ppb.
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