Stay updated with real-time air quality in Westport, 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)
86
Moderate
Westport, Massachusetts
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
27.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
121.16 μg/m³
0
55
155
255
425
605+
29.04 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
2.08 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Westport, Massachusetts
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AQI 56
Moderate
12.47μg/m³
PM2.5
57.19μg/m³
PM10
40.13ppb
O3
0.39ppb
SO2
6.47ppb
NO2
0.28ppm
CO
AQI 58
Moderate
12.59μg/m³
PM2.5
57.36μg/m³
PM10
40.60ppb
O3
0.38ppb
SO2
6.50ppb
NO2
0.28ppm
CO
AQI 58
Moderate
13.12μg/m³
PM2.5
59.57μg/m³
PM10
41.73ppb
O3
0.32ppb
SO2
6.58ppb
NO2
0.28ppm
CO
AQI 58
Moderate
12.94μg/m³
PM2.5
58.46μg/m³
PM10
41.23ppb
O3
0.35ppb
SO2
6.28ppb
NO2
0.28ppm
CO
AQI 60
Moderate
14.02μg/m³
PM2.5
56.43μg/m³
PM10
41.78ppb
O3
0.34ppb
SO2
6.32ppb
NO2
0.28ppm
CO
AQI 60
Moderate
13.57μg/m³
PM2.5
61.20μg/m³
PM10
42.64ppb
O3
0.28ppb
SO2
6.96ppb
NO2
0.29ppm
CO
The air quality data for Massachusetts, 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 Westport, Massachusetts are available every hour.
Westport, Massachusetts experienced its worst air quality at 06:00:00, 2025-07-29.
The best air quality in Westport, Massachusetts was observed at 09:00:00 on 2025-07-28.
The air quality in Westport, Massachusetts right now is Moderate, with an AQI of 58.
In Westport, Massachusetts, PM2.5 is the most frequently found pollutant.
When air quality in Westport, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Westport, Massachusetts currently has a PM2.5 concentration of 12.564 μg/m3.
Westport, Massachusetts currently has a PM10 concentration of 57.377 μg/m3.
The current carbon monoxide (CO) level in Westport, Massachusetts is 0.283 ppm.
The current sulfur dioxide (SO2) concentration in Westport, Massachusetts is 0.387 ppb.
Westport, Massachusetts currently has an ozone (O3) concentration of 40.289 ppm.
The current level of nitrogen dioxide (NO2) in Westport, Massachusetts is 6.494 ppb.
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