Stay updated with real-time air quality in Rochester, New Hampshire 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)
36
Good
Rochester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.16 μg/m³
0
55
155
255
425
605+
38.80 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
14.76 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Rochester, New Hampshire
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AQI 32
Good
3.76μg/m³
PM2.5
16.19μg/m³
PM10
35.14ppb
O3
0.68ppb
SO2
14.78ppb
NO2
0.27ppm
CO
AQI 34
Good
3.76μg/m³
PM2.5
19.23μg/m³
PM10
36.82ppb
O3
0.68ppb
SO2
14.80ppb
NO2
0.27ppm
CO
AQI 34
Good
3.91μg/m³
PM2.5
17.37μg/m³
PM10
36.81ppb
O3
0.67ppb
SO2
14.90ppb
NO2
0.27ppm
CO
AQI 36
Good
3.81μg/m³
PM2.5
17.19μg/m³
PM10
39.39ppb
O3
0.67ppb
SO2
14.29ppb
NO2
0.26ppm
CO
AQI 33
Good
5.50μg/m³
PM2.5
31.97μg/m³
PM10
36.01ppb
O3
0.70ppb
SO2
14.91ppb
NO2
0.29ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
33.04μg/m³
PM10
36.46ppb
O3
0.69ppb
SO2
14.67ppb
NO2
0.28ppm
CO
The air quality data for New Hampshire, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Rochester, New Hampshire are available every hour.
Rochester, New Hampshire experienced its worst air quality at 06:00:00, 2025-12-28.
The best air quality in Rochester, New Hampshire was observed at 03:00:00 on 2025-12-28.
The air quality in Rochester, New Hampshire right now is Good, with an AQI of 36.
In Rochester, New Hampshire, O3 is the most frequently found pollutant.
When air quality in Rochester, New Hampshire is compromised, staying indoors and wearing a mask can reduce health risks.
Rochester, New Hampshire currently has a PM2.5 concentration of 4.131 μg/m3.
Rochester, New Hampshire currently has a PM10 concentration of 16.159 μg/m3.
The current carbon monoxide (CO) level in Rochester, New Hampshire is 0.259 ppm.
The current sulfur dioxide (SO2) concentration in Rochester, New Hampshire is 0.687 ppb.
Rochester, New Hampshire currently has an ozone (O3) concentration of 38.8 ppm.
The current level of nitrogen dioxide (NO2) in Rochester, New Hampshire is 14.759 ppb.
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