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)
30
Good
Medfield, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.80 μg/m³
0
55
155
255
425
605+
31.91 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
1.70 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Medfield, Massachusetts
Medfield, Massachusetts
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AQI 22
Good
2.02μg/m³
PM2.5
7.52μg/m³
PM10
24.27ppb
O3
0.32ppb
SO2
4.00ppb
NO2
0.20ppm
CO
AQI 22
Good
1.78μg/m³
PM2.5
7.88μg/m³
PM10
23.93ppb
O3
0.31ppb
SO2
3.70ppb
NO2
0.20ppm
CO
AQI 24
Good
2.55μg/m³
PM2.5
8.25μg/m³
PM10
26.26ppb
O3
0.39ppb
SO2
3.13ppb
NO2
0.20ppm
CO
AQI 22
Good
1.83μg/m³
PM2.5
7.87μg/m³
PM10
23.98ppb
O3
0.30ppb
SO2
3.13ppb
NO2
0.20ppm
CO
AQI 24
Good
2.81μg/m³
PM2.5
9.29μg/m³
PM10
26.30ppb
O3
0.40ppb
SO2
3.12ppb
NO2
0.20ppm
CO
AQI 25
Good
1.90μg/m³
PM2.5
7.54μg/m³
PM10
26.89ppb
O3
0.29ppb
SO2
3.17ppb
NO2
0.20ppm
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 09:00:00, 2025-11-01.
The best air quality in Medfield, Massachusetts was observed at 02:00:00 on 2025-11-02.
The air quality in Medfield, Massachusetts right now is Good, with an AQI of 22.
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 4.414 μg/m3.
Medfield, Massachusetts currently has a PM10 concentration of 19.235 μg/m3.
The current carbon monoxide (CO) level in Medfield, Massachusetts is 0.153 ppm.
The current sulfur dioxide (SO2) concentration in Medfield, Massachusetts is 0.468 ppb.
Medfield, Massachusetts currently has an ozone (O3) concentration of 15.972 ppm.
The current level of nitrogen dioxide (NO2) in Medfield, Massachusetts is 5.657 ppb.
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