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
10.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.20 μg/m³
0
55
155
255
425
605+
46.20 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
8.61 ppb
0
54
101
361
1250
2050+
0.21 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 81
Moderate
25.00μg/m³
PM2.5
38.57μg/m³
PM10
17.08ppb
O3
0.61ppb
SO2
16.74ppb
NO2
0.23ppm
CO
AQI 81
Moderate
24.89μg/m³
PM2.5
34.23μg/m³
PM10
16.99ppb
O3
0.59ppb
SO2
13.68ppb
NO2
0.29ppm
CO
AQI 82
Moderate
25.71μg/m³
PM2.5
37.41μg/m³
PM10
16.43ppb
O3
0.62ppb
SO2
17.61ppb
NO2
0.21ppm
CO
AQI 82
Moderate
25.57μg/m³
PM2.5
37.84μg/m³
PM10
17.15ppb
O3
0.60ppb
SO2
16.79ppb
NO2
0.23ppm
CO
AQI 81
Moderate
25.36μg/m³
PM2.5
37.67μg/m³
PM10
17.49ppb
O3
0.61ppb
SO2
16.51ppb
NO2
0.23ppm
CO
AQI 82
Moderate
25.79μg/m³
PM2.5
37.12μg/m³
PM10
16.17ppb
O3
0.62ppb
SO2
17.93ppb
NO2
0.20ppm
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 04:00:00 on 2025-07-27.
The best air quality in North Branford, Connecticut was recorded at 05:00:00 on 2025-07-28.
The real-time air quality index in North Branford, Connecticut is 79, 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 24.423 μg/m3.
The current PM10 levels in North Branford, Connecticut are 64.058 μg/m3.
The current carbon monoxide (CO) level in North Branford, Connecticut is 0.275 ppm.
The current sulfur dioxide (SO2) levels in North Branford, Connecticut are 0.592 ppb.
The current ozone (O3) levels at North Branford, Connecticut is 16.02 ppm.
The current nitrogen dioxide (NO2) levels at North Branford, Connecticut is 15.741 ppb.
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