Stay updated with real-time air quality in Scituate, 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)
42
Good
Scituate, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.23 μg/m³
0
55
155
255
425
605+
44.64 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
9.68 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Scituate, Massachusetts
Scituate, Massachusetts
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AQI 40
Good
4.08μg/m³
PM2.5
18.47μg/m³
PM10
42.76ppb
O3
0.49ppb
SO2
9.25ppb
NO2
0.18ppm
CO
AQI 40
Good
4.31μg/m³
PM2.5
18.79μg/m³
PM10
42.52ppb
O3
0.49ppb
SO2
9.65ppb
NO2
0.18ppm
CO
AQI 38
Good
3.80μg/m³
PM2.5
16.18μg/m³
PM10
40.97ppb
O3
0.49ppb
SO2
3.97ppb
NO2
0.16ppm
CO
AQI 44
Good
3.95μg/m³
PM2.5
13.87μg/m³
PM10
47.56ppb
O3
0.48ppb
SO2
9.65ppb
NO2
0.19ppm
CO
AQI 40
Good
4.06μg/m³
PM2.5
16.93μg/m³
PM10
43.41ppb
O3
0.46ppb
SO2
5.42ppb
NO2
0.18ppm
CO
AQI 40
Good
4.14μg/m³
PM2.5
18.77μg/m³
PM10
43.03ppb
O3
0.47ppb
SO2
10.13ppb
NO2
0.19ppm
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 Scituate, Massachusetts is updated every hour.
The worst air quality in Scituate, Massachusetts in the last 24 hours was observed at 02:00:00 on 2026-05-14.
In the last 24 hrs, the best air quality in Scituate, Massachusetts was observed at 12:00:00 on 2026-05-13.
The current air quality in Scituate, Massachusetts is 42, categorized as Good based on real-time data.
The most common pollutant in Scituate, Massachusetts is O3.
If the air quality in Scituate, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Scituate, Massachusetts is 3.987 μg/m3.
The current PM10 concentration at Scituate, Massachusetts is 15.227 μg/m3.
The current carbon monoxide (CO) concentration at Scituate, Massachusetts is 0.216 ppm.
The current sulfur dioxide (SO2) concentration at Scituate, Massachusetts is 0.407 ppb.
The current ozone (O3) concentration at Scituate, Massachusetts is 44.639 ppm.
The current nitrogen dioxide (NO2) concentration at Scituate, Massachusetts is 9.68 ppb.
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