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)
19
Good
Scituate, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.29 μg/m³
0
55
155
255
425
605+
21.17 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
14.66 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Scituate, Massachusetts
Scituate, Massachusetts
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AQI 28
Good
2.91μg/m³
PM2.5
9.86μg/m³
PM10
29.59ppb
O3
0.61ppb
SO2
9.40ppb
NO2
0.23ppm
CO
AQI 22
Good
3.12μg/m³
PM2.5
13.22μg/m³
PM10
24.07ppb
O3
0.58ppb
SO2
9.58ppb
NO2
0.23ppm
CO
AQI 25
Good
2.65μg/m³
PM2.5
10.76μg/m³
PM10
27.01ppb
O3
0.53ppb
SO2
6.21ppb
NO2
0.21ppm
CO
AQI 30
Good
2.91μg/m³
PM2.5
13.09μg/m³
PM10
31.57ppb
O3
0.61ppb
SO2
10.33ppb
NO2
0.23ppm
CO
AQI 18
Good
3.25μg/m³
PM2.5
13.60μg/m³
PM10
18.81ppb
O3
0.51ppb
SO2
7.14ppb
NO2
0.22ppm
CO
AQI 19
Good
3.07μg/m³
PM2.5
13.03μg/m³
PM10
20.31ppb
O3
0.57ppb
SO2
10.46ppb
NO2
0.23ppm
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 08:00:00 on 2026-10-08.
In the last 24 hrs, the best air quality in Scituate, Massachusetts was observed at 03:00:00 on 2026-10-09.
The current air quality in Scituate, Massachusetts is 28, 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 2.886 μg/m3.
The current PM10 concentration at Scituate, Massachusetts is 13.052 μg/m3.
The current carbon monoxide (CO) concentration at Scituate, Massachusetts is 0.228 ppm.
The current sulfur dioxide (SO2) concentration at Scituate, Massachusetts is 0.626 ppb.
The current ozone (O3) concentration at Scituate, Massachusetts is 30.157 ppm.
The current nitrogen dioxide (NO2) concentration at Scituate, Massachusetts is 9.475 ppb.
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