Stay updated with real-time air quality in Orono, 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)
38
Good
Orono, Maine
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.91 μg/m³
0
55
155
255
425
605+
41.35 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
1.57 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Orono, Maine
Orono, Maine
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AQI 36
Good
5.79μg/m³
PM2.5
13.05μg/m³
PM10
38.53ppb
O3
0.56ppb
SO2
1.25ppb
NO2
0.12ppm
CO
AQI 32
Good
5.34μg/m³
PM2.5
14.06μg/m³
PM10
34.84ppb
O3
0.54ppb
SO2
1.82ppb
NO2
0.14ppm
CO
AQI 34
Good
6.09μg/m³
PM2.5
13.01μg/m³
PM10
37.01ppb
O3
0.52ppb
SO2
2.13ppb
NO2
0.14ppm
CO
AQI 33
Good
3.96μg/m³
PM2.5
15.08μg/m³
PM10
35.54ppb
O3
0.46ppb
SO2
5.08ppb
NO2
0.14ppm
CO
AQI 38
Good
2.84μg/m³
PM2.5
16.99μg/m³
PM10
40.73ppb
O3
0.48ppb
SO2
2.96ppb
NO2
0.15ppm
CO
AQI 38
Good
2.87μg/m³
PM2.5
17.00μg/m³
PM10
40.64ppb
O3
0.48ppb
SO2
2.96ppb
NO2
0.15ppm
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 Orono, Maine is updated on an hourly basis.
The worst air quality in Orono, Maine was recorded at 06:00:00 on 2026-05-14.
The best air quality in Orono, Maine was recorded at 02:00:00 on 2026-05-14.
The real-time air quality index in Orono, Maine is 38, currently categorized as Good.
The most common pollutant in Orono, Maine is O3.
If the air quality in Orono, Maine is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Orono, Maine at present are 5.53 μg/m3.
The current PM10 levels in Orono, Maine are 13.913 μg/m3.
The current carbon monoxide (CO) level in Orono, Maine is 0.133 ppm.
The current sulfur dioxide (SO2) levels in Orono, Maine are 0.542 ppb.
The current ozone (O3) levels at Orono, Maine is 41.351 ppm.
The current nitrogen dioxide (NO2) levels at Orono, Maine is 1.568 ppb.
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