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)
33
Good
Branford, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.48 μg/m³
0
55
155
255
425
605+
35.19 ppb
0
55
71
86
201
201+
0.13 ppb
0
36
76
186
605
1005+
17.12 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Branford, Connecticut
Branford, Connecticut
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AQI 34
Good
5.99μg/m³
PM2.5
14.31μg/m³
PM10
37.04ppb
O3
0.30ppb
SO2
5.33ppb
NO2
0.12ppm
CO
AQI 33
Good
5.62μg/m³
PM2.5
32.94μg/m³
PM10
33.70ppb
O3
0.30ppb
SO2
4.42ppb
NO2
0.21ppm
CO
AQI 34
Good
6.00μg/m³
PM2.5
14.02μg/m³
PM10
37.01ppb
O3
0.30ppb
SO2
5.31ppb
NO2
0.10ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
26.54μg/m³
PM10
35.53ppb
O3
0.30ppb
SO2
3.37ppb
NO2
0.22ppm
CO
AQI 34
Good
6.04μg/m³
PM2.5
14.06μg/m³
PM10
37.21ppb
O3
0.29ppb
SO2
5.33ppb
NO2
0.13ppm
CO
AQI 34
Good
5.99μg/m³
PM2.5
14.76μg/m³
PM10
36.73ppb
O3
0.30ppb
SO2
5.43ppb
NO2
0.15ppm
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 10:00:00, 2025-09-13.
The best air quality in Branford, Connecticut was observed at 04:00:00 on 2025-09-14.
The air quality in Branford, Connecticut right now is Good, with an AQI of 33.
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 5.828 μg/m3.
Branford, Connecticut currently has a PM10 concentration of 15.482 μg/m3.
The current carbon monoxide (CO) level in Branford, Connecticut is 0.217 ppm.
The current sulfur dioxide (SO2) concentration in Branford, Connecticut is 0.131 ppb.
Branford, Connecticut currently has an ozone (O3) concentration of 35.188 ppm.
The current level of nitrogen dioxide (NO2) in Branford, Connecticut is 17.122 ppb.
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