Stay updated with real-time air quality in Laconia, 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)
19
Good
Laconia, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
1.06 μg/m³
0
55
155
255
425
605+
20.19 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
1.76 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Laconia, New Hampshire
Laconia, New Hampshire
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AQI 18
Good
0.65μg/m³
PM2.5
2.40μg/m³
PM10
19.31ppb
O3
0.64ppb
SO2
1.73ppb
NO2
0.18ppm
CO
AQI 20
Good
0.65μg/m³
PM2.5
4.07μg/m³
PM10
21.70ppb
O3
0.82ppb
SO2
1.80ppb
NO2
0.19ppm
CO
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 20
Good
0.87μg/m³
PM2.5
1.77μg/m³
PM10
21.70ppb
O3
0.78ppb
SO2
1.85ppb
NO2
0.19ppm
CO
AQI 21
Good
0.58μg/m³
PM2.5
5.09μg/m³
PM10
22.64ppb
O3
0.86ppb
SO2
1.80ppb
NO2
0.19ppm
CO
AQI 20
Good
0.76μg/m³
PM2.5
3.85μg/m³
PM10
21.88ppb
O3
0.62ppb
SO2
1.81ppb
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 Laconia, New Hampshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Laconia, New Hampshire was at its worst at 05:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Laconia, New Hampshire was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in Laconia, New Hampshire is 19, indicating Good conditions.
Laconia, New Hampshire air has the highest levels of O3.
Poor air quality in Laconia, New Hampshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Laconia, New Hampshire are currently 0.226 μg/m3.
The PM10 concentration in Laconia, New Hampshire is 1.065 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Laconia, New Hampshire is 0.183 ppm.
Currently, Laconia, New Hampshire has a sulfur dioxide (SO2) concentration of 0.749 ppb.
The current ozone (O3) level in Laconia, New Hampshire at the moment is 20.19 ppm.
Nitrogen dioxide (NO2) level in Laconia, New Hampshire at the moment is 1.765 ppb.
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