Stay updated with real-time air quality in Falmouth, 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)
49
Good
Falmouth, Maine
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.94 μg/m³
0
55
155
255
425
605+
35.08 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
4.05 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Falmouth, Maine
Scroll To Air Quality MapLoading...
AQI 52
Moderate
9.92μg/m³
PM2.5
38.16μg/m³
PM10
35.99ppb
O3
0.31ppb
SO2
3.79ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.94μg/m³
PM2.5
38.21μg/m³
PM10
36.00ppb
O3
0.31ppb
SO2
3.80ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.58μg/m³
PM2.5
37.89μg/m³
PM10
28.92ppb
O3
0.48ppb
SO2
3.81ppb
NO2
0.22ppm
CO
AQI 49
Good
9.30μg/m³
PM2.5
37.48μg/m³
PM10
33.80ppb
O3
0.54ppb
SO2
3.82ppb
NO2
0.22ppm
CO
AQI 46
Good
7.20μg/m³
PM2.5
50.17μg/m³
PM10
29.34ppb
O3
0.58ppb
SO2
3.80ppb
NO2
0.22ppm
CO
AQI 49
Good
9.43μg/m³
PM2.5
38.91μg/m³
PM10
35.96ppb
O3
0.37ppb
SO2
3.76ppb
NO2
0.22ppm
CO
The air quality data for Maine, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Falmouth, Maine are available every hour.
Falmouth, Maine experienced its worst air quality at 02:00:00, 2026-02-11.
The best air quality in Falmouth, Maine was observed at 07:00:00 on 2026-02-11.
The air quality in Falmouth, Maine right now is Moderate, with an AQI of 52.
In Falmouth, Maine, PM2.5 is the most frequently found pollutant.
When air quality in Falmouth, Maine is compromised, staying indoors and wearing a mask can reduce health risks.
Falmouth, Maine currently has a PM2.5 concentration of 9.865 μg/m3.
Falmouth, Maine currently has a PM10 concentration of 37.912 μg/m3.
The current carbon monoxide (CO) level in Falmouth, Maine is 0.219 ppm.
The current sulfur dioxide (SO2) concentration in Falmouth, Maine is 0.317 ppb.
Falmouth, Maine currently has an ozone (O3) concentration of 35.973 ppm.
The current level of nitrogen dioxide (NO2) in Falmouth, Maine is 3.787 ppb.
All Rights Reserved © Ambee Inc. 2025