Stay updated with real-time air quality in Sanford, 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)
20
Good
Sanford, Maine
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.87 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
1.77 μg/m³
0
55
155
255
425
605+
21.70 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
1.85 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Sanford, Maine
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AQI 19
Good
0.79μg/m³
PM2.5
2.57μg/m³
PM10
20.21ppb
O3
0.77ppb
SO2
1.88ppb
NO2
0.20ppm
CO
AQI 19
Good
0.78μg/m³
PM2.5
2.60μg/m³
PM10
20.00ppb
O3
0.78ppb
SO2
1.88ppb
NO2
0.20ppm
CO
AQI 21
Good
0.58μg/m³
PM2.5
5.09μg/m³
PM10
22.64ppb
O3
0.86ppb
SO2
1.80ppb
NO2
0.19ppm
CO
AQI 20
Good
0.65μg/m³
PM2.5
4.07μg/m³
PM10
21.70ppb
O3
0.82ppb
SO2
1.80ppb
NO2
0.19ppm
CO
AQI 19
Good
0.81μg/m³
PM2.5
2.88μg/m³
PM10
20.93ppb
O3
0.54ppb
SO2
1.93ppb
NO2
0.20ppm
CO
AQI 19
Good
0.83μg/m³
PM2.5
2.72μg/m³
PM10
21.33ppb
O3
0.51ppb
SO2
1.93ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Maine, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Sanford, Maine is updated every hour for accuracy.
In the past 24 hours, the air quality in Sanford, Maine was at its worst at 10:00:00 on 2026-09-27.
In the last 24 hours, the best air quality in Sanford, Maine was observed at 07:00:00 on 2026-09-28.
As of now, the AQI in Sanford, Maine is 20, indicating Good conditions.
Sanford, Maine air has the highest levels of O3.
Poor air quality in Sanford, Maine means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Sanford, Maine are currently 0.867 μg/m3.
The PM10 concentration in Sanford, Maine is 1.772 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sanford, Maine is 0.193 ppm.
Currently, Sanford, Maine has a sulfur dioxide (SO2) concentration of 0.779 ppb.
The current ozone (O3) level in Sanford, Maine at the moment is 21.705 ppm.
Nitrogen dioxide (NO2) level in Sanford, Maine at the moment is 1.85 ppb.
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