Stay updated with real-time air quality in Falmouth, Massachusetts 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)
44
Good
Falmouth, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.81 μg/m³
0
55
155
255
425
605+
30.83 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
8.35 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Falmouth, Massachusetts
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AQI 38
Good
7.10μg/m³
PM2.5
33.37μg/m³
PM10
17.07ppb
O3
0.37ppb
SO2
15.02ppb
NO2
0.57ppm
CO
AQI 49
Good
8.73μg/m³
PM2.5
24.27μg/m³
PM10
4.29ppb
O3
0.37ppb
SO2
15.78ppb
NO2
0.57ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
26.02μg/m³
PM10
6.01ppb
O3
0.36ppb
SO2
15.57ppb
NO2
0.57ppm
CO
AQI 44
Good
7.73μg/m³
PM2.5
21.83μg/m³
PM10
4.12ppb
O3
0.37ppb
SO2
12.72ppb
NO2
0.57ppm
CO
AQI 49
Good
8.79μg/m³
PM2.5
22.14μg/m³
PM10
7.94ppb
O3
0.47ppb
SO2
14.70ppb
NO2
0.57ppm
CO
AQI 44
Good
7.52μg/m³
PM2.5
26.55μg/m³
PM10
6.12ppb
O3
0.35ppb
SO2
15.69ppb
NO2
0.57ppm
CO
Air quality data and pollutant measurements for Massachusetts, 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 Falmouth, Massachusetts is updated every hour.
The worst air quality in Falmouth, Massachusetts in the last 24 hours was observed at 06:00:00 on 2025-11-03.
In the last 24 hrs, the best air quality in Falmouth, Massachusetts was observed at 02:00:00 on 2025-11-02.
The current air quality in Falmouth, Massachusetts is 38, categorized as Good based on real-time data.
The most common pollutant in Falmouth, Massachusetts is PM2.5.
If the air quality in Falmouth, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Falmouth, Massachusetts is 6.515 μg/m3.
The current PM10 concentration at Falmouth, Massachusetts is 15.061 μg/m3.
The current carbon monoxide (CO) concentration at Falmouth, Massachusetts is 0.572 ppm.
The current sulfur dioxide (SO2) concentration at Falmouth, Massachusetts is 0.362 ppb.
The current ozone (O3) concentration at Falmouth, Massachusetts is 18.944 ppm.
The current nitrogen dioxide (NO2) concentration at Falmouth, Massachusetts is 15.479 ppb.
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