Stay updated with real-time air quality in Seymour, 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)
52
Moderate
Seymour, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.17 μg/m³
0
55
155
255
425
605+
28.35 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
8.82 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Seymour, Connecticut
Seymour, Connecticut
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AQI 54
Moderate
11.49μg/m³
PM2.5
35.93μg/m³
PM10
38.18ppb
O3
0.70ppb
SO2
14.71ppb
NO2
0.34ppm
CO
AQI 56
Moderate
11.65μg/m³
PM2.5
35.77μg/m³
PM10
34.84ppb
O3
0.67ppb
SO2
9.70ppb
NO2
0.33ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
35.93μg/m³
PM10
38.18ppb
O3
0.70ppb
SO2
14.71ppb
NO2
0.34ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
35.93μg/m³
PM10
38.18ppb
O3
0.70ppb
SO2
14.71ppb
NO2
0.34ppm
CO
AQI 58
Moderate
13.07μg/m³
PM2.5
23.23μg/m³
PM10
35.16ppb
O3
0.60ppb
SO2
7.08ppb
NO2
0.33ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
26.15μg/m³
PM10
34.94ppb
O3
0.74ppb
SO2
13.11ppb
NO2
0.31ppm
CO
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Seymour, Connecticut is updated on an hourly basis.
The worst air quality in Seymour, Connecticut was recorded at 03:00:00 on 2025-07-29.
The best air quality in Seymour, Connecticut was recorded at 08:00:00 on 2025-07-28.
The real-time air quality index in Seymour, Connecticut is 54, currently categorized as Moderate.
The most common pollutant in Seymour, Connecticut is PM2.5.
If the air quality in Seymour, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Seymour, Connecticut at present are 11.394 μg/m3.
The current PM10 levels in Seymour, Connecticut are 35.722 μg/m3.
The current carbon monoxide (CO) level in Seymour, Connecticut is 0.342 ppm.
The current sulfur dioxide (SO2) levels in Seymour, Connecticut are 0.683 ppb.
The current ozone (O3) levels at Seymour, Connecticut is 36.569 ppm.
The current nitrogen dioxide (NO2) levels at Seymour, Connecticut is 12.488 ppb.
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