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)
31
Good
Hanover, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.44 μg/m³
0
55
155
255
425
605+
34.27 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
13.77 ppb
0
54
101
361
1250
2050+
0.41 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hanover, Massachusetts
Hanover, Massachusetts
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AQI 32
Good
5.49μg/m³
PM2.5
23.30μg/m³
PM10
34.52ppb
O3
0.44ppb
SO2
13.46ppb
NO2
0.41ppm
CO
AQI 31
Good
5.46μg/m³
PM2.5
23.43μg/m³
PM10
33.53ppb
O3
0.41ppb
SO2
14.67ppb
NO2
0.43ppm
CO
AQI 29
Good
4.50μg/m³
PM2.5
22.62μg/m³
PM10
31.03ppb
O3
0.43ppb
SO2
16.69ppb
NO2
0.43ppm
CO
AQI 33
Good
5.48μg/m³
PM2.5
23.41μg/m³
PM10
35.56ppb
O3
0.41ppb
SO2
15.30ppb
NO2
0.41ppm
CO
AQI 30
Good
4.37μg/m³
PM2.5
20.93μg/m³
PM10
31.93ppb
O3
0.42ppb
SO2
16.37ppb
NO2
0.43ppm
CO
AQI 30
Good
4.37μg/m³
PM2.5
20.89μg/m³
PM10
31.96ppb
O3
0.42ppb
SO2
16.42ppb
NO2
0.43ppm
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 02:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Hanover, Massachusetts was observed at 02:00:00 on 2025-12-28.
As of now, the AQI in Hanover, Massachusetts is 31, 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 5.49 μg/m3.
The PM10 concentration in Hanover, Massachusetts is 34.441 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hanover, Massachusetts is 0.414 ppm.
Currently, Hanover, Massachusetts has a sulfur dioxide (SO2) concentration of 0.416 ppb.
The current ozone (O3) level in Hanover, Massachusetts at the moment is 34.272 ppm.
Nitrogen dioxide (NO2) level in Hanover, Massachusetts at the moment is 13.771 ppb.
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