Stay updated with real-time air quality in Marshfield, 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)
36
Good
Marshfield, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.55 μg/m³
0
55
155
255
425
605+
39.06 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
3.44 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marshfield, Massachusetts
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AQI 36
Good
5.64μg/m³
PM2.5
13.29μg/m³
PM10
39.19ppb
O3
0.42ppb
SO2
3.46ppb
NO2
0.17ppm
CO
AQI 36
Good
5.39μg/m³
PM2.5
16.16μg/m³
PM10
39.39ppb
O3
0.42ppb
SO2
3.42ppb
NO2
0.17ppm
CO
AQI 36
Good
5.66μg/m³
PM2.5
13.25μg/m³
PM10
39.25ppb
O3
0.42ppb
SO2
3.48ppb
NO2
0.17ppm
CO
AQI 38
Good
6.82μg/m³
PM2.5
25.04μg/m³
PM10
39.28ppb
O3
0.43ppb
SO2
3.30ppb
NO2
0.17ppm
CO
AQI 36
Good
6.32μg/m³
PM2.5
25.39μg/m³
PM10
39.41ppb
O3
0.43ppb
SO2
3.29ppb
NO2
0.17ppm
CO
AQI 38
Good
6.83μg/m³
PM2.5
24.33μg/m³
PM10
39.14ppb
O3
0.44ppb
SO2
3.34ppb
NO2
0.17ppm
CO
Air quality and pollutant data for Massachusetts, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Marshfield, Massachusetts is updated every hour for accuracy.
In the past 24 hours, the air quality in Marshfield, Massachusetts was at its worst at 02:00:00 on 2026-03-06.
In the last 24 hours, the best air quality in Marshfield, Massachusetts was observed at 09:00:00 on 2026-03-05.
As of now, the AQI in Marshfield, Massachusetts is 36, indicating Good conditions.
Marshfield, Massachusetts air has the highest levels of O3.
Poor air quality in Marshfield, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Marshfield, Massachusetts are currently 6.367 μg/m3.
The PM10 concentration in Marshfield, Massachusetts is 16.549 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marshfield, Massachusetts is 0.17 ppm.
Currently, Marshfield, Massachusetts has a sulfur dioxide (SO2) concentration of 0.426 ppb.
The current ozone (O3) level in Marshfield, Massachusetts at the moment is 39.063 ppm.
Nitrogen dioxide (NO2) level in Marshfield, Massachusetts at the moment is 3.442 ppb.
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