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)
33
Good
Hamden, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.62 μg/m³
0
55
155
255
425
605+
20.96 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
10.95 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Hamden, Connecticut
Hamden, Connecticut
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AQI 29
Good
1.57μg/m³
PM2.5
4.73μg/m³
PM10
31.23ppb
O3
0.11ppb
SO2
2.27ppb
NO2
0.10ppm
CO
AQI 29
Good
1.60μg/m³
PM2.5
5.00μg/m³
PM10
31.04ppb
O3
0.10ppb
SO2
2.38ppb
NO2
0.10ppm
CO
AQI 29
Good
1.34μg/m³
PM2.5
3.06μg/m³
PM10
30.87ppb
O3
0.15ppb
SO2
1.94ppb
NO2
0.10ppm
CO
AQI 29
Good
1.60μg/m³
PM2.5
5.06μg/m³
PM10
31.11ppb
O3
0.10ppb
SO2
2.33ppb
NO2
0.10ppm
CO
AQI 29
Good
1.52μg/m³
PM2.5
5.80μg/m³
PM10
31.26ppb
O3
0.14ppb
SO2
2.02ppb
NO2
0.10ppm
CO
AQI 29
Good
1.61μg/m³
PM2.5
5.05μg/m³
PM10
31.31ppb
O3
0.11ppb
SO2
2.24ppb
NO2
0.10ppm
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 06:00:00, 2025-11-01.
The best air quality in Hamden, Connecticut was observed at 07:00:00 on 2025-10-31.
The air quality in Hamden, Connecticut right now is Good, with an AQI of 29.
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 1.453 μg/m3.
Hamden, Connecticut currently has a PM10 concentration of 3.713 μg/m3.
The current carbon monoxide (CO) level in Hamden, Connecticut is 0.101 ppm.
The current sulfur dioxide (SO2) concentration in Hamden, Connecticut is 0.107 ppb.
Hamden, Connecticut currently has an ozone (O3) concentration of 31.399 ppm.
The current level of nitrogen dioxide (NO2) in Hamden, Connecticut is 1.538 ppb.
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