Stay updated with real-time air quality in Hamden, 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)
41
Good
Hamden, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.03 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.25 μg/m³
0
55
155
255
425
605+
44.04 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
5.08 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hamden, Connecticut
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AQI 41
Good
4.95μg/m³
PM2.5
12.24μg/m³
PM10
44.10ppb
O3
0.29ppb
SO2
5.13ppb
NO2
0.13ppm
CO
AQI 40
Good
4.82μg/m³
PM2.5
11.14μg/m³
PM10
43.11ppb
O3
0.30ppb
SO2
5.35ppb
NO2
0.10ppm
CO
AQI 44
Good
4.98μg/m³
PM2.5
18.25μg/m³
PM10
46.65ppb
O3
0.28ppb
SO2
5.11ppb
NO2
0.18ppm
CO
AQI 40
Good
4.84μg/m³
PM2.5
11.48μg/m³
PM10
43.42ppb
O3
0.30ppb
SO2
5.29ppb
NO2
0.11ppm
CO
AQI 42
Good
4.97μg/m³
PM2.5
10.97μg/m³
PM10
45.24ppb
O3
0.29ppb
SO2
4.54ppb
NO2
0.16ppm
CO
AQI 41
Good
4.93μg/m³
PM2.5
12.13μg/m³
PM10
43.70ppb
O3
0.31ppb
SO2
5.01ppb
NO2
0.13ppm
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 Hamden, Connecticut are available every hour.
Hamden, Connecticut experienced its worst air quality at 01:00:00, 2026-03-29.
The best air quality in Hamden, Connecticut was observed at 06:00:00 on 2026-03-29.
The air quality in Hamden, Connecticut right now is Good, with an AQI of 41.
In Hamden, Connecticut, O3 is the most frequently found pollutant.
When air quality in Hamden, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Hamden, Connecticut currently has a PM2.5 concentration of 5.031 μg/m3.
Hamden, Connecticut currently has a PM10 concentration of 12.25 μg/m3.
The current carbon monoxide (CO) level in Hamden, Connecticut is 0.137 ppm.
The current sulfur dioxide (SO2) concentration in Hamden, Connecticut is 0.301 ppb.
Hamden, Connecticut currently has an ozone (O3) concentration of 44.044 ppm.
The current level of nitrogen dioxide (NO2) in Hamden, Connecticut is 5.084 ppb.
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