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)
33
Good
Concord, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.07 μg/m³
0
55
155
255
425
605+
21.78 ppb
0
55
71
86
201
201+
1.12 ppb
0
36
76
186
605
1005+
11.40 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Concord, New Hampshire
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AQI 23
Good
1.28μg/m³
PM2.5
2.93μg/m³
PM10
25.50ppb
O3
0.99ppb
SO2
6.00ppb
NO2
0.19ppm
CO
AQI 23
Good
1.28μg/m³
PM2.5
3.15μg/m³
PM10
24.93ppb
O3
0.59ppb
SO2
6.19ppb
NO2
0.18ppm
CO
AQI 23
Good
1.24μg/m³
PM2.5
2.68μg/m³
PM10
25.19ppb
O3
0.58ppb
SO2
6.42ppb
NO2
0.19ppm
CO
AQI 22
Good
1.25μg/m³
PM2.5
2.66μg/m³
PM10
24.26ppb
O3
0.52ppb
SO2
6.06ppb
NO2
0.19ppm
CO
AQI 22
Good
1.33μg/m³
PM2.5
3.19μg/m³
PM10
24.30ppb
O3
0.61ppb
SO2
3.56ppb
NO2
0.19ppm
CO
AQI 25
Good
0.91μg/m³
PM2.5
3.99μg/m³
PM10
27.23ppb
O3
0.64ppb
SO2
6.30ppb
NO2
0.18ppm
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 10:00:00 on 2025-11-01.
In the last 24 hours, the best air quality in Concord, New Hampshire was observed at 03:00:00 on 2025-11-02.
As of now, the AQI in Concord, New Hampshire is 23, indicating Good conditions.
Concord, New Hampshire air has the highest levels of O3.
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 1.452 μg/m3.
The PM10 concentration in Concord, New Hampshire is 3.807 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Concord, New Hampshire is 0.186 ppm.
Currently, Concord, New Hampshire has a sulfur dioxide (SO2) concentration of 1 ppb.
The current ozone (O3) level in Concord, New Hampshire at the moment is 24.875 ppm.
Nitrogen dioxide (NO2) level in Concord, New Hampshire at the moment is 7.515 ppb.
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