Stay updated with real-time air quality in Stafford, 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)
44
Good
Stafford, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.62 μg/m³
0
55
155
255
425
605+
32.96 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
24.21 ppb
0
54
101
361
1250
2050+
0.47 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Stafford, Connecticut
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AQI 49
Good
8.57μg/m³
PM2.5
31.41μg/m³
PM10
30.53ppb
O3
0.62ppb
SO2
25.16ppb
NO2
0.48ppm
CO
AQI 44
Good
7.84μg/m³
PM2.5
34.02μg/m³
PM10
20.39ppb
O3
0.62ppb
SO2
23.98ppb
NO2
0.48ppm
CO
AQI 49
Good
9.20μg/m³
PM2.5
30.10μg/m³
PM10
26.05ppb
O3
0.64ppb
SO2
27.19ppb
NO2
0.51ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
30.58μg/m³
PM10
21.53ppb
O3
0.68ppb
SO2
20.29ppb
NO2
0.44ppm
CO
AQI 49
Good
9.42μg/m³
PM2.5
38.86μg/m³
PM10
19.78ppb
O3
0.70ppb
SO2
21.11ppb
NO2
0.46ppm
CO
AQI 52
Moderate
9.55μg/m³
PM2.5
42.53μg/m³
PM10
11.12ppb
O3
0.64ppb
SO2
21.83ppb
NO2
0.49ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Stafford, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Stafford, Connecticut was at its worst at 03:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Stafford, Connecticut was observed at 11:00:00 on 2026-03-10.
As of now, the AQI in Stafford, Connecticut is 44, indicating Good conditions.
Stafford, Connecticut air has the highest levels of PM2.5.
Poor air quality in Stafford, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Stafford, Connecticut are currently 8.278 μg/m3.
The PM10 concentration in Stafford, Connecticut is 30.623 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Stafford, Connecticut is 0.468 ppm.
Currently, Stafford, Connecticut has a sulfur dioxide (SO2) concentration of 0.594 ppb.
The current ozone (O3) level in Stafford, Connecticut at the moment is 32.962 ppm.
Nitrogen dioxide (NO2) level in Stafford, Connecticut at the moment is 24.208 ppb.
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