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)
18
Good
Concord, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.40 μg/m³
0
55
155
255
425
605+
19.31 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
1.73 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Concord, New Hampshire
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AQI 19
Good
0.62μg/m³
PM2.5
2.82μg/m³
PM10
21.32ppb
O3
0.60ppb
SO2
1.71ppb
NO2
0.16ppm
CO
AQI 23
Good
0.72μg/m³
PM2.5
3.56μg/m³
PM10
24.79ppb
O3
0.73ppb
SO2
1.67ppb
NO2
0.17ppm
CO
AQI 23
Good
0.64μg/m³
PM2.5
3.24μg/m³
PM10
24.75ppb
O3
0.77ppb
SO2
1.89ppb
NO2
0.15ppm
CO
AQI 23
Good
0.65μg/m³
PM2.5
3.28μg/m³
PM10
25.09ppb
O3
0.78ppb
SO2
1.79ppb
NO2
0.16ppm
CO
AQI 19
Good
0.64μg/m³
PM2.5
2.09μg/m³
PM10
21.26ppb
O3
0.82ppb
SO2
1.69ppb
NO2
0.17ppm
CO
AQI 19
Good
0.23μg/m³
PM2.5
1.06μg/m³
PM10
20.19ppb
O3
0.75ppb
SO2
1.76ppb
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 04:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Concord, New Hampshire was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in Concord, New Hampshire is 18, 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 0.651 μg/m3.
The PM10 concentration in Concord, New Hampshire is 2.405 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Concord, New Hampshire is 0.176 ppm.
Currently, Concord, New Hampshire has a sulfur dioxide (SO2) concentration of 0.642 ppb.
The current ozone (O3) level in Concord, New Hampshire at the moment is 19.313 ppm.
Nitrogen dioxide (NO2) level in Concord, New Hampshire at the moment is 1.728 ppb.
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