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)
25
Good
Hanover, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.15 μg/m³
0
55
155
255
425
605+
27.48 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
5.28 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, Massachusetts
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AQI 23
Good
2.87μg/m³
PM2.5
12.25μg/m³
PM10
25.05ppb
O3
0.50ppb
SO2
4.69ppb
NO2
0.20ppm
CO
AQI 24
Good
2.39μg/m³
PM2.5
10.22μg/m³
PM10
26.35ppb
O3
0.42ppb
SO2
4.95ppb
NO2
0.20ppm
CO
AQI 22
Good
2.92μg/m³
PM2.5
11.62μg/m³
PM10
23.71ppb
O3
0.48ppb
SO2
5.33ppb
NO2
0.20ppm
CO
AQI 25
Good
2.37μg/m³
PM2.5
10.23μg/m³
PM10
26.77ppb
O3
0.42ppb
SO2
5.01ppb
NO2
0.20ppm
CO
AQI 21
Good
2.70μg/m³
PM2.5
10.93μg/m³
PM10
23.00ppb
O3
0.46ppb
SO2
5.12ppb
NO2
0.20ppm
CO
AQI 21
Good
2.69μg/m³
PM2.5
10.88μg/m³
PM10
22.94ppb
O3
0.45ppb
SO2
5.12ppb
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 04:00:00 on 2026-02-11.
In the last 24 hours, the best air quality in Hanover, Massachusetts was observed at 04:00:00 on 2026-02-12.
As of now, the AQI in Hanover, Massachusetts is 25, 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 2.816 μg/m3.
The PM10 concentration in Hanover, Massachusetts is 7.151 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hanover, Massachusetts is 0.185 ppm.
Currently, Hanover, Massachusetts has a sulfur dioxide (SO2) concentration of 0.324 ppb.
The current ozone (O3) level in Hanover, Massachusetts at the moment is 27.484 ppm.
Nitrogen dioxide (NO2) level in Hanover, Massachusetts at the moment is 5.284 ppb.
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