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
4.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.39 μg/m³
0
55
155
255
425
605+
45.05 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
9.23 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Scituate, Massachusetts
Scroll To Air Quality MapLoading...
AQI 43
Good
4.19μg/m³
PM2.5
11.74μg/m³
PM10
45.98ppb
O3
0.45ppb
SO2
7.64ppb
NO2
0.23ppm
CO
AQI 43
Good
4.25μg/m³
PM2.5
15.16μg/m³
PM10
45.91ppb
O3
0.44ppb
SO2
7.45ppb
NO2
0.23ppm
CO
AQI 42
Good
4.16μg/m³
PM2.5
17.65μg/m³
PM10
45.41ppb
O3
0.49ppb
SO2
3.26ppb
NO2
0.21ppm
CO
AQI 43
Good
4.19μg/m³
PM2.5
11.79μg/m³
PM10
46.04ppb
O3
0.45ppb
SO2
8.11ppb
NO2
0.23ppm
CO
AQI 42
Good
4.28μg/m³
PM2.5
17.73μg/m³
PM10
44.96ppb
O3
0.45ppb
SO2
4.46ppb
NO2
0.22ppm
CO
AQI 43
Good
4.28μg/m³
PM2.5
17.72μg/m³
PM10
46.21ppb
O3
0.44ppb
SO2
7.91ppb
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 11:00:00 on 2026-03-29.
In the last 24 hrs, the best air quality in Scituate, Massachusetts was observed at 03:00:00 on 2026-03-29.
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 4.527 μg/m3.
The current PM10 concentration at Scituate, Massachusetts is 17.385 μg/m3.
The current carbon monoxide (CO) concentration at Scituate, Massachusetts is 0.227 ppm.
The current sulfur dioxide (SO2) concentration at Scituate, Massachusetts is 0.497 ppb.
The current ozone (O3) concentration at Scituate, Massachusetts is 45.048 ppm.
The current nitrogen dioxide (NO2) concentration at Scituate, Massachusetts is 9.232 ppb.
All Rights Reserved © Ambee Inc. 2025