Stay updated with real-time air quality in Medfield, 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)
44
Good
Medfield, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.59 μg/m³
0
55
155
255
425
605+
22.69 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
11.41 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Medfield, Massachusetts
Medfield, Massachusetts
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AQI 49
Good
9.32μg/m³
PM2.5
52.55μg/m³
PM10
29.87ppb
O3
0.43ppb
SO2
17.33ppb
NO2
0.43ppm
CO
AQI 52
Moderate
9.82μg/m³
PM2.5
40.50μg/m³
PM10
29.30ppb
O3
0.43ppb
SO2
20.33ppb
NO2
0.42ppm
CO
AQI 49
Good
9.19μg/m³
PM2.5
39.48μg/m³
PM10
26.87ppb
O3
0.46ppb
SO2
16.92ppb
NO2
0.44ppm
CO
AQI 49
Good
9.06μg/m³
PM2.5
41.08μg/m³
PM10
26.40ppb
O3
0.43ppb
SO2
24.45ppb
NO2
0.42ppm
CO
AQI 52
Moderate
9.63μg/m³
PM2.5
41.33μg/m³
PM10
27.21ppb
O3
0.46ppb
SO2
16.67ppb
NO2
0.44ppm
CO
AQI 44
Good
8.36μg/m³
PM2.5
35.44μg/m³
PM10
26.36ppb
O3
0.44ppb
SO2
19.02ppb
NO2
0.41ppm
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 Medfield, Massachusetts are available every hour.
Medfield, Massachusetts experienced its worst air quality at 03:00:00, 2025-12-28.
The best air quality in Medfield, Massachusetts was observed at 07:00:00 on 2025-12-28.
The air quality in Medfield, Massachusetts right now is Moderate, with an AQI of 52.
In Medfield, Massachusetts, PM2.5 is the most frequently found pollutant.
When air quality in Medfield, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Medfield, Massachusetts currently has a PM2.5 concentration of 9.519 μg/m3.
Medfield, Massachusetts currently has a PM10 concentration of 40.119 μg/m3.
The current carbon monoxide (CO) level in Medfield, Massachusetts is 0.423 ppm.
The current sulfur dioxide (SO2) concentration in Medfield, Massachusetts is 0.433 ppb.
Medfield, Massachusetts currently has an ozone (O3) concentration of 26.578 ppm.
The current level of nitrogen dioxide (NO2) in Medfield, Massachusetts is 17.674 ppb.
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