Stay updated with real-time air quality in Stratford, 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)
40
Good
Stratford, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.30 μg/m³
0
55
155
255
425
605+
42.88 ppb
0
55
71
86
201
201+
0.41 ppb
0
36
76
186
605
1005+
8.41 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Stratford, Connecticut
Stratford, Connecticut
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AQI 40
Good
7.48μg/m³
PM2.5
18.95μg/m³
PM10
43.12ppb
O3
0.45ppb
SO2
6.64ppb
NO2
0.21ppm
CO
AQI 41
Good
6.78μg/m³
PM2.5
16.70μg/m³
PM10
44.27ppb
O3
0.43ppb
SO2
6.92ppb
NO2
0.21ppm
CO
AQI 39
Good
7.18μg/m³
PM2.5
17.89μg/m³
PM10
42.35ppb
O3
0.46ppb
SO2
7.45ppb
NO2
0.21ppm
CO
AQI 38
Good
7.19μg/m³
PM2.5
17.95μg/m³
PM10
41.36ppb
O3
0.48ppb
SO2
8.45ppb
NO2
0.21ppm
CO
AQI 33
Good
6.27μg/m³
PM2.5
15.05μg/m³
PM10
34.81ppb
O3
0.40ppb
SO2
9.44ppb
NO2
0.20ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
15.05μg/m³
PM10
33.46ppb
O3
0.40ppb
SO2
9.08ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Stratford, Connecticut is updated every hour.
The worst air quality in Stratford, Connecticut in the last 24 hours was observed at 10:00:00 on 2026-05-13.
In the last 24 hrs, the best air quality in Stratford, Connecticut was observed at 11:00:00 on 2026-05-14.
The current air quality in Stratford, Connecticut is 40, categorized as Good based on real-time data.
The most common pollutant in Stratford, Connecticut is O3.
If the air quality in Stratford, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Stratford, Connecticut is 7.217 μg/m3.
The current PM10 concentration at Stratford, Connecticut is 19.305 μg/m3.
The current carbon monoxide (CO) concentration at Stratford, Connecticut is 0.222 ppm.
The current sulfur dioxide (SO2) concentration at Stratford, Connecticut is 0.413 ppb.
The current ozone (O3) concentration at Stratford, Connecticut is 42.884 ppm.
The current nitrogen dioxide (NO2) concentration at Stratford, Connecticut is 8.415 ppb.
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