Stay updated with real-time air quality in Barnstable Town, 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)
54
Moderate
Barnstable Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.55 μg/m³
0
55
155
255
425
605+
39.42 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
2.92 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Barnstable Town, Massachusetts
Barnstable Town, Massachusetts
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AQI 54
Moderate
11.07μg/m³
PM2.5
25.57μg/m³
PM10
36.33ppb
O3
0.60ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 54
Moderate
11.11μg/m³
PM2.5
26.58μg/m³
PM10
36.75ppb
O3
0.61ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 52
Moderate
10.31μg/m³
PM2.5
31.91μg/m³
PM10
28.36ppb
O3
0.44ppb
SO2
3.05ppb
NO2
0.14ppm
CO
AQI 54
Moderate
11.20μg/m³
PM2.5
37.70μg/m³
PM10
36.75ppb
O3
0.61ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 54
Moderate
11.14μg/m³
PM2.5
34.54μg/m³
PM10
37.42ppb
O3
0.61ppb
SO2
2.19ppb
NO2
0.14ppm
CO
AQI 52
Moderate
10.06μg/m³
PM2.5
41.31μg/m³
PM10
27.52ppb
O3
0.45ppb
SO2
3.06ppb
NO2
0.14ppm
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 Barnstable Town, Massachusetts is updated every hour.
The worst air quality in Barnstable Town, Massachusetts in the last 24 hours was observed at 02:00:00 on 2026-06-29.
In the last 24 hrs, the best air quality in Barnstable Town, Massachusetts was observed at 03:00:00 on 2026-06-29.
The current air quality in Barnstable Town, Massachusetts is 54, categorized as Moderate based on real-time data.
The most common pollutant in Barnstable Town, Massachusetts is PM2.5.
If the air quality in Barnstable Town, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Barnstable Town, Massachusetts is 11.181 μg/m3.
The current PM10 concentration at Barnstable Town, Massachusetts is 47.547 μg/m3.
The current carbon monoxide (CO) concentration at Barnstable Town, Massachusetts is 0.162 ppm.
The current sulfur dioxide (SO2) concentration at Barnstable Town, Massachusetts is 0.632 ppb.
The current ozone (O3) concentration at Barnstable Town, Massachusetts is 39.418 ppm.
The current nitrogen dioxide (NO2) concentration at Barnstable Town, Massachusetts is 2.921 ppb.
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