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)
52
Moderate
Branford, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.35 μg/m³
0
55
155
255
425
605+
28.87 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
8.53 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Branford, Connecticut
Branford, Connecticut
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AQI 49
Good
8.67μg/m³
PM2.5
17.04μg/m³
PM10
32.10ppb
O3
1.59ppb
SO2
6.99ppb
NO2
0.20ppm
CO
AQI 44
Good
7.59μg/m³
PM2.5
33.60μg/m³
PM10
32.18ppb
O3
1.53ppb
SO2
6.33ppb
NO2
0.22ppm
CO
AQI 49
Good
8.76μg/m³
PM2.5
16.16μg/m³
PM10
32.03ppb
O3
1.60ppb
SO2
7.00ppb
NO2
0.20ppm
CO
AQI 44
Good
8.22μg/m³
PM2.5
38.61μg/m³
PM10
30.70ppb
O3
1.51ppb
SO2
6.05ppb
NO2
0.23ppm
CO
AQI 49
Good
8.52μg/m³
PM2.5
17.58μg/m³
PM10
32.14ppb
O3
1.68ppb
SO2
6.82ppb
NO2
0.21ppm
CO
AQI 44
Good
8.46μg/m³
PM2.5
18.72μg/m³
PM10
32.20ppb
O3
1.61ppb
SO2
6.88ppb
NO2
0.21ppm
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 07:00:00, 2025-07-16.
The best air quality in Branford, Connecticut was observed at 10:00:00 on 2025-07-16.
The air quality in Branford, Connecticut right now is Good, with an AQI of 49.
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 9.001 μg/m3.
Branford, Connecticut currently has a PM10 concentration of 20.862 μg/m3.
The current carbon monoxide (CO) level in Branford, Connecticut is 0.201 ppm.
The current sulfur dioxide (SO2) concentration in Branford, Connecticut is 1.661 ppb.
Branford, Connecticut currently has an ozone (O3) concentration of 30.976 ppm.
The current level of nitrogen dioxide (NO2) in Branford, Connecticut is 6.346 ppb.
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