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)
22
Good
Milton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.87 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.33 μg/m³
0
55
155
255
425
605+
23.59 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
7.53 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 22
Good
2.19μg/m³
PM2.5
9.15μg/m³
PM10
24.12ppb
O3
0.54ppb
SO2
8.66ppb
NO2
0.25ppm
CO
AQI 22
Good
2.17μg/m³
PM2.5
9.22μg/m³
PM10
24.07ppb
O3
0.53ppb
SO2
8.05ppb
NO2
0.25ppm
CO
AQI 21
Good
2.66μg/m³
PM2.5
10.18μg/m³
PM10
23.04ppb
O3
0.57ppb
SO2
11.10ppb
NO2
0.24ppm
CO
AQI 21
Good
2.70μg/m³
PM2.5
11.11μg/m³
PM10
22.63ppb
O3
0.47ppb
SO2
9.04ppb
NO2
0.25ppm
CO
AQI 22
Good
2.41μg/m³
PM2.5
9.21μg/m³
PM10
23.65ppb
O3
0.78ppb
SO2
10.72ppb
NO2
0.22ppm
CO
AQI 23
Good
1.96μg/m³
PM2.5
8.54μg/m³
PM10
24.61ppb
O3
0.56ppb
SO2
7.43ppb
NO2
0.25ppm
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 10:00:00 on 2026-10-06.
In the last 24 hours, the best air quality in Milton, Massachusetts was observed at 03:00:00 on 2026-10-06.
As of now, the AQI in Milton, Massachusetts is 21, 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 2.639 μg/m3.
The PM10 concentration in Milton, Massachusetts is 10.142 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Milton, Massachusetts is 0.25 ppm.
Currently, Milton, Massachusetts has a sulfur dioxide (SO2) concentration of 0.479 ppb.
The current ozone (O3) level in Milton, Massachusetts at the moment is 22.779 ppm.
Nitrogen dioxide (NO2) level in Milton, Massachusetts at the moment is 10.835 ppb.
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