Stay updated with real-time air quality in Milton, 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)
34
Good
Milton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.10 μg/m³
0
55
155
255
425
605+
37.34 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
9.33 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Milton, Massachusetts
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AQI 39
Good
3.76μg/m³
PM2.5
15.76μg/m³
PM10
41.97ppb
O3
0.41ppb
SO2
5.06ppb
NO2
0.21ppm
CO
AQI 40
Good
3.76μg/m³
PM2.5
15.89μg/m³
PM10
42.88ppb
O3
0.42ppb
SO2
4.10ppb
NO2
0.21ppm
CO
AQI 38
Good
3.99μg/m³
PM2.5
15.19μg/m³
PM10
40.94ppb
O3
0.48ppb
SO2
7.65ppb
NO2
0.21ppm
CO
AQI 39
Good
4.00μg/m³
PM2.5
15.88μg/m³
PM10
42.45ppb
O3
0.41ppb
SO2
5.70ppb
NO2
0.22ppm
CO
AQI 34
Good
4.06μg/m³
PM2.5
15.60μg/m³
PM10
37.37ppb
O3
0.66ppb
SO2
14.27ppb
NO2
0.18ppm
CO
AQI 41
Good
3.67μg/m³
PM2.5
15.98μg/m³
PM10
43.53ppb
O3
0.45ppb
SO2
2.90ppb
NO2
0.21ppm
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 Milton, Massachusetts is updated every hour for accuracy.
In the past 24 hours, the air quality in Milton, Massachusetts was at its worst at 02:00:00 on 2026-05-14.
In the last 24 hours, the best air quality in Milton, Massachusetts was observed at 01:00:00 on 2026-05-13.
As of now, the AQI in Milton, Massachusetts is 37, indicating Good conditions.
Milton, Massachusetts air has the highest levels of O3.
Poor air quality in Milton, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Milton, Massachusetts are currently 4.009 μg/m3.
The PM10 concentration in Milton, Massachusetts is 15.193 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Milton, Massachusetts is 0.21 ppm.
Currently, Milton, Massachusetts has a sulfur dioxide (SO2) concentration of 0.432 ppb.
The current ozone (O3) level in Milton, Massachusetts at the moment is 39.619 ppm.
Nitrogen dioxide (NO2) level in Milton, Massachusetts at the moment is 9.342 ppb.
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