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)
28
Good
Seymour, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.32 μg/m³
0
55
155
255
425
605+
29.54 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
2.89 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Seymour, Connecticut
Seymour, Connecticut
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AQI 30
Good
3.62μg/m³
PM2.5
18.70μg/m³
PM10
31.70ppb
O3
1.19ppb
SO2
2.72ppb
NO2
0.27ppm
CO
AQI 30
Good
3.70μg/m³
PM2.5
10.34μg/m³
PM10
31.68ppb
O3
1.18ppb
SO2
2.92ppb
NO2
0.26ppm
CO
AQI 30
Good
3.62μg/m³
PM2.5
18.70μg/m³
PM10
31.70ppb
O3
1.19ppb
SO2
2.72ppb
NO2
0.27ppm
CO
AQI 30
Good
3.62μg/m³
PM2.5
18.70μg/m³
PM10
31.70ppb
O3
1.19ppb
SO2
2.72ppb
NO2
0.27ppm
CO
AQI 28
Good
3.97μg/m³
PM2.5
7.07μg/m³
PM10
29.56ppb
O3
1.15ppb
SO2
3.04ppb
NO2
0.26ppm
CO
AQI 30
Good
3.62μg/m³
PM2.5
14.02μg/m³
PM10
31.85ppb
O3
1.22ppb
SO2
2.75ppb
NO2
0.26ppm
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 10:00:00 on 2025-07-12.
The best air quality in Seymour, Connecticut was recorded at 05:00:00 on 2025-07-13.
The real-time air quality index in Seymour, Connecticut is 30, currently categorized as Good.
The most common pollutant in Seymour, Connecticut is O3.
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 3.658 μg/m3.
The current PM10 levels in Seymour, Connecticut are 10.677 μg/m3.
The current carbon monoxide (CO) level in Seymour, Connecticut is 0.266 ppm.
The current sulfur dioxide (SO2) levels in Seymour, Connecticut are 1.185 ppb.
The current ozone (O3) levels at Seymour, Connecticut is 31.679 ppm.
The current nitrogen dioxide (NO2) levels at Seymour, Connecticut is 2.871 ppb.
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