Stay updated with real-time air quality in Hanover, 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)
27
Good
Hanover, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.99 μg/m³
0
55
155
255
425
605+
29.29 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
2.82 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hanover, Massachusetts
Hanover, Massachusetts
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AQI 28
Good
4.20μg/m³
PM2.5
16.68μg/m³
PM10
30.13ppb
O3
0.58ppb
SO2
2.87ppb
NO2
0.20ppm
CO
AQI 28
Good
4.24μg/m³
PM2.5
17.14μg/m³
PM10
29.61ppb
O3
0.44ppb
SO2
2.79ppb
NO2
0.20ppm
CO
AQI 29
Good
4.22μg/m³
PM2.5
18.11μg/m³
PM10
30.56ppb
O3
0.46ppb
SO2
2.96ppb
NO2
0.20ppm
CO
AQI 26
Good
4.23μg/m³
PM2.5
16.88μg/m³
PM10
28.31ppb
O3
0.56ppb
SO2
2.80ppb
NO2
0.20ppm
CO
AQI 29
Good
4.29μg/m³
PM2.5
18.40μg/m³
PM10
31.05ppb
O3
0.45ppb
SO2
2.83ppb
NO2
0.20ppm
CO
AQI 29
Good
4.30μg/m³
PM2.5
18.41μg/m³
PM10
31.07ppb
O3
0.45ppb
SO2
2.82ppb
NO2
0.20ppm
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 Hanover, Massachusetts is updated every hour for accuracy.
In the past 24 hours, the air quality in Hanover, Massachusetts was at its worst at 07:00:00 on 2026-08-13.
In the last 24 hours, the best air quality in Hanover, Massachusetts was observed at 04:00:00 on 2026-08-14.
As of now, the AQI in Hanover, Massachusetts is 27, indicating Good conditions.
Hanover, Massachusetts air has the highest levels of O3.
Poor air quality in Hanover, Massachusetts means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hanover, Massachusetts are currently 4.226 μg/m3.
The PM10 concentration in Hanover, Massachusetts is 16.989 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hanover, Massachusetts is 0.202 ppm.
Currently, Hanover, Massachusetts has a sulfur dioxide (SO2) concentration of 0.566 ppb.
The current ozone (O3) level in Hanover, Massachusetts at the moment is 29.292 ppm.
Nitrogen dioxide (NO2) level in Hanover, Massachusetts at the moment is 2.82 ppb.
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