Stay updated with real-time air quality in Concord, 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)
22
Good
Concord, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.45 μg/m³
0
55
155
255
425
605+
12.28 ppb
0
55
71
86
201
201+
0.50 ppb
0
36
76
186
605
1005+
3.17 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Concord, New Hampshire
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AQI 27
Good
4.69μg/m³
PM2.5
16.69μg/m³
PM10
13.19ppb
O3
0.41ppb
SO2
3.08ppb
NO2
0.20ppm
CO
AQI 22
Good
4.36μg/m³
PM2.5
18.13μg/m³
PM10
13.04ppb
O3
0.69ppb
SO2
3.23ppb
NO2
0.20ppm
CO
AQI 27
Good
5.25μg/m³
PM2.5
14.52μg/m³
PM10
12.49ppb
O3
0.77ppb
SO2
2.69ppb
NO2
0.20ppm
CO
AQI 27
Good
5.22μg/m³
PM2.5
14.39μg/m³
PM10
8.38ppb
O3
0.81ppb
SO2
2.79ppb
NO2
0.20ppm
CO
AQI 22
Good
4.02μg/m³
PM2.5
10.60μg/m³
PM10
12.65ppb
O3
0.81ppb
SO2
3.30ppb
NO2
0.20ppm
CO
AQI 22
Good
3.56μg/m³
PM2.5
15.90μg/m³
PM10
16.45ppb
O3
0.71ppb
SO2
3.34ppb
NO2
0.20ppm
CO
Air quality and pollutant data for New Hampshire, 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 Concord, New Hampshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Concord, New Hampshire was at its worst at 11:00:00 on 2026-08-15.
In the last 24 hours, the best air quality in Concord, New Hampshire was observed at 03:00:00 on 2026-08-15.
As of now, the AQI in Concord, New Hampshire is 22, indicating Good conditions.
Concord, New Hampshire air has the highest levels of PM2.5.
Poor air quality in Concord, New Hampshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Concord, New Hampshire are currently 4.166 μg/m3.
The PM10 concentration in Concord, New Hampshire is 13.446 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Concord, New Hampshire is 0.2 ppm.
Currently, Concord, New Hampshire has a sulfur dioxide (SO2) concentration of 0.498 ppb.
The current ozone (O3) level in Concord, New Hampshire at the moment is 12.282 ppm.
Nitrogen dioxide (NO2) level in Concord, New Hampshire at the moment is 3.167 ppb.
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