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)
60
Moderate
Rochester, New Hampshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
73.84 μg/m³
0
55
155
255
425
605+
19.26 ppb
0
55
71
86
201
201+
0.94 ppb
0
36
76
186
605
1005+
6.78 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Rochester, New Hampshire
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AQI 49
Good
8.69μg/m³
PM2.5
22.90μg/m³
PM10
20.76ppb
O3
0.46ppb
SO2
9.40ppb
NO2
0.28ppm
CO
AQI 49
Good
8.69μg/m³
PM2.5
22.90μg/m³
PM10
18.92ppb
O3
0.47ppb
SO2
9.43ppb
NO2
0.28ppm
CO
AQI 59
Moderate
8.85μg/m³
PM2.5
70.98μg/m³
PM10
15.84ppb
O3
0.48ppb
SO2
9.58ppb
NO2
0.28ppm
CO
AQI 44
Good
8.47μg/m³
PM2.5
30.71μg/m³
PM10
23.61ppb
O3
0.43ppb
SO2
9.21ppb
NO2
0.28ppm
CO
AQI 54
Moderate
10.56μg/m³
PM2.5
24.50μg/m³
PM10
13.93ppb
O3
0.59ppb
SO2
9.53ppb
NO2
0.28ppm
CO
AQI 52
Moderate
9.85μg/m³
PM2.5
45.85μg/m³
PM10
17.74ppb
O3
0.55ppb
SO2
9.58ppb
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 03:00:00, 2025-07-30.
The best air quality in Rochester, New Hampshire was observed at 06:00:00 on 2025-07-30.
The air quality in Rochester, New Hampshire right now is Good, with an AQI of 49.
In Rochester, New Hampshire, PM2.5 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 9.219 μg/m3.
Rochester, New Hampshire currently has a PM10 concentration of 43.043 μg/m3.
The current carbon monoxide (CO) level in Rochester, New Hampshire is 0.299 ppm.
The current sulfur dioxide (SO2) concentration in Rochester, New Hampshire is 0.49 ppb.
Rochester, New Hampshire currently has an ozone (O3) concentration of 17.223 ppm.
The current level of nitrogen dioxide (NO2) in Rochester, New Hampshire is 8.522 ppb.
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