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)
41
Good
Concord, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.89 μg/m³
0
55
155
255
425
605+
44.10 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
5.52 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Concord, New Hampshire
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AQI 42
Good
3.76μg/m³
PM2.5
12.88μg/m³
PM10
44.67ppb
O3
0.67ppb
SO2
5.43ppb
NO2
0.19ppm
CO
AQI 42
Good
3.77μg/m³
PM2.5
15.85μg/m³
PM10
44.74ppb
O3
0.60ppb
SO2
5.58ppb
NO2
0.19ppm
CO
AQI 42
Good
3.79μg/m³
PM2.5
12.94μg/m³
PM10
44.58ppb
O3
0.62ppb
SO2
4.89ppb
NO2
0.19ppm
CO
AQI 42
Good
3.80μg/m³
PM2.5
13.71μg/m³
PM10
44.70ppb
O3
0.61ppb
SO2
4.50ppb
NO2
0.19ppm
CO
AQI 41
Good
3.91μg/m³
PM2.5
13.76μg/m³
PM10
44.40ppb
O3
0.64ppb
SO2
6.14ppb
NO2
0.18ppm
CO
AQI 42
Good
3.61μg/m³
PM2.5
15.93μg/m³
PM10
44.86ppb
O3
0.60ppb
SO2
5.86ppb
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 09:00:00 on 2026-03-29.
In the last 24 hours, the best air quality in Concord, New Hampshire was observed at 01:00:00 on 2026-03-29.
As of now, the AQI in Concord, New Hampshire is 41, 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 3.816 μg/m3.
The PM10 concentration in Concord, New Hampshire is 14.891 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Concord, New Hampshire is 0.187 ppm.
Currently, Concord, New Hampshire has a sulfur dioxide (SO2) concentration of 0.658 ppb.
The current ozone (O3) level in Concord, New Hampshire at the moment is 44.102 ppm.
Nitrogen dioxide (NO2) level in Concord, New Hampshire at the moment is 5.517 ppb.
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