Stay updated with real-time air quality in 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
Branford, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
50.20 μg/m³
0
55
155
255
425
605+
15.52 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
8.59 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Branford, Connecticut
Branford, Connecticut
Scroll To Air Quality MapLoading...
AQI 56
Moderate
12.13μg/m³
PM2.5
39.45μg/m³
PM10
47.34ppb
O3
1.01ppb
SO2
2.91ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.29μg/m³
PM2.5
43.16μg/m³
PM10
49.48ppb
O3
0.51ppb
SO2
3.11ppb
NO2
0.26ppm
CO
AQI 56
Moderate
11.53μg/m³
PM2.5
23.67μg/m³
PM10
42.90ppb
O3
1.03ppb
SO2
2.88ppb
NO2
0.31ppm
CO
AQI 122
Unhealthy for sensitive groups
11.38μg/m³
PM2.5
55.46μg/m³
PM10
76.80ppb
O3
0.50ppb
SO2
3.04ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.39μg/m³
PM2.5
23.80μg/m³
PM10
46.73ppb
O3
1.04ppb
SO2
2.44ppb
NO2
0.31ppm
CO
AQI 49
Good
8.52μg/m³
PM2.5
32.84μg/m³
PM10
42.30ppb
O3
0.98ppb
SO2
3.01ppb
NO2
0.28ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Branford, Connecticut are available every hour.
Branford, Connecticut experienced its worst air quality at 06:00:00, 2025-07-29.
The best air quality in Branford, Connecticut was observed at 10:00:00 on 2025-07-29.
The air quality in Branford, Connecticut right now is Moderate, with an AQI of 56.
In Branford, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Branford, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Branford, Connecticut currently has a PM2.5 concentration of 12.125 μg/m3.
Branford, Connecticut currently has a PM10 concentration of 39.448 μg/m3.
The current carbon monoxide (CO) level in Branford, Connecticut is 0.292 ppm.
The current sulfur dioxide (SO2) concentration in Branford, Connecticut is 1.012 ppb.
Branford, Connecticut currently has an ozone (O3) concentration of 47.343 ppm.
The current level of nitrogen dioxide (NO2) in Branford, Connecticut is 2.91 ppb.
All Rights Reserved © Ambee Inc. 2025