Stay updated with real-time air quality in North Branford, 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)
54
Moderate
North Branford, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.27 μg/m³
0
55
155
255
425
605+
24.27 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
4.60 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
North Branford, Connecticut
North Branford, Connecticut
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AQI 56
Moderate
11.75μg/m³
PM2.5
27.61μg/m³
PM10
17.42ppb
O3
0.45ppb
SO2
4.66ppb
NO2
0.27ppm
CO
AQI 52
Moderate
10.23μg/m³
PM2.5
28.80μg/m³
PM10
26.30ppb
O3
0.45ppb
SO2
4.55ppb
NO2
0.23ppm
CO
AQI 56
Moderate
12.22μg/m³
PM2.5
25.13μg/m³
PM10
14.24ppb
O3
0.45ppb
SO2
4.50ppb
NO2
0.27ppm
CO
AQI 56
Moderate
12.00μg/m³
PM2.5
26.46μg/m³
PM10
15.86ppb
O3
0.45ppb
SO2
4.61ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.93μg/m³
PM2.5
26.05μg/m³
PM10
15.14ppb
O3
0.46ppb
SO2
4.82ppb
NO2
0.27ppm
CO
AQI 56
Moderate
12.32μg/m³
PM2.5
24.28μg/m³
PM10
13.30ppb
O3
0.45ppb
SO2
4.47ppb
NO2
0.27ppm
CO
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for North Branford, Connecticut is updated on an hourly basis.
The worst air quality in North Branford, Connecticut was recorded at 09:00:00 on 2025-06-06.
The best air quality in North Branford, Connecticut was recorded at 07:00:00 on 2025-06-07.
The real-time air quality index in North Branford, Connecticut is 54, currently categorized as Moderate.
The most common pollutant in North Branford, Connecticut is PM2.5.
If the air quality in North Branford, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in North Branford, Connecticut at present are 10.686 μg/m3.
The current PM10 levels in North Branford, Connecticut are 25.274 μg/m3.
The current carbon monoxide (CO) level in North Branford, Connecticut is 0.226 ppm.
The current sulfur dioxide (SO2) levels in North Branford, Connecticut are 0.471 ppb.
The current ozone (O3) levels at North Branford, Connecticut is 24.267 ppm.
The current nitrogen dioxide (NO2) levels at North Branford, Connecticut is 4.602 ppb.
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