Stay updated with real-time air quality in New Britain, Connecticut 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)
21
Good
New Britain, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.00 μg/m³
0
55
155
255
425
605+
22.53 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
3.97 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
New Britain, Connecticut
New Britain, Connecticut
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AQI 20
Good
1.03μg/m³
PM2.5
2.42μg/m³
PM10
21.80ppb
O3
0.67ppb
SO2
4.35ppb
NO2
0.29ppm
CO
AQI 21
Good
1.23μg/m³
PM2.5
3.00μg/m³
PM10
22.53ppb
O3
0.67ppb
SO2
3.97ppb
NO2
0.27ppm
CO
AQI 20
Good
0.87μg/m³
PM2.5
3.49μg/m³
PM10
22.38ppb
O3
0.74ppb
SO2
4.18ppb
NO2
0.25ppm
CO
AQI 19
Good
0.86μg/m³
PM2.5
3.07μg/m³
PM10
21.19ppb
O3
0.67ppb
SO2
3.99ppb
NO2
0.26ppm
CO
AQI 20
Good
1.21μg/m³
PM2.5
5.07μg/m³
PM10
22.18ppb
O3
0.66ppb
SO2
4.20ppb
NO2
0.28ppm
CO
AQI 20
Good
1.07μg/m³
PM2.5
2.59μg/m³
PM10
21.91ppb
O3
0.67ppb
SO2
4.37ppb
NO2
0.29ppm
CO
Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for New Britain, Connecticut is updated every hour.
The worst air quality in New Britain, Connecticut in the last 24 hours was observed at 03:00:00 on 2026-09-28.
In the last 24 hrs, the best air quality in New Britain, Connecticut was observed at 10:00:00 on 2026-09-28.
The current air quality in New Britain, Connecticut is 21, categorized as Good based on real-time data.
The most common pollutant in New Britain, Connecticut is O3.
If the air quality in New Britain, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at New Britain, Connecticut is 1.234 μg/m3.
The current PM10 concentration at New Britain, Connecticut is 3.003 μg/m3.
The current carbon monoxide (CO) concentration at New Britain, Connecticut is 0.272 ppm.
The current sulfur dioxide (SO2) concentration at New Britain, Connecticut is 0.666 ppb.
The current ozone (O3) concentration at New Britain, Connecticut is 22.533 ppm.
The current nitrogen dioxide (NO2) concentration at New Britain, Connecticut is 3.967 ppb.
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