Real-time air quality index in Seymour, Connecticut today
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)
20
Good
Seymour, Connecticut
Last updated: ... (Local time)
Common air pollutants in Seymour, Connecticut
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
0.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
2.44 μg/m³
0
55
155
255
425
605+
Ozone (O3)
21.77 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.75 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
4.06 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Seymour, Connecticut
Seymour, Connecticut
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Seymour, Connecticut air quality map: Real-time AQI near you
Air quality in nearby cities
Ansonia, Connecticut
AQI 20
Good
0.87μg/m³
PM2.5
2.58μg/m³
PM10
21.81ppb
O3
0.76ppb
SO2
3.80ppb
NO2
0.28ppm
CO
Oxford, Connecticut
AQI 20
Good
0.87μg/m³
PM2.5
1.82μg/m³
PM10
21.93ppb
O3
0.76ppb
SO2
3.77ppb
NO2
0.27ppm
CO
Derby, Connecticut
AQI 20
Good
0.87μg/m³
PM2.5
2.58μg/m³
PM10
21.81ppb
O3
0.76ppb
SO2
3.80ppb
NO2
0.28ppm
CO
Shelton, Connecticut
AQI 20
Good
0.87μg/m³
PM2.5
2.58μg/m³
PM10
21.81ppb
O3
0.76ppb
SO2
3.80ppb
NO2
0.28ppm
CO
Naugatuck, Connecticut
AQI 20
Good
0.98μg/m³
PM2.5
2.01μg/m³
PM10
21.65ppb
O3
0.74ppb
SO2
3.81ppb
NO2
0.26ppm
CO
Monroe, Connecticut
AQI 19
Good
0.84μg/m³
PM2.5
2.11μg/m³
PM10
20.56ppb
O3
0.58ppb
SO2
4.00ppb
NO2
0.26ppm
CO
How accurate is Connecticut, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Seymour, Connecticut updated?
Air quality data for Seymour, Connecticut is updated on an hourly basis.
When did Seymour, Connecticut experience the worst air quality in the last 24 hours?
The worst air quality in Seymour, Connecticut was recorded at 03:00:00 on 2026-09-28.
When did Seymour, Connecticut have its best air quality in the last 24 hours?
The best air quality in Seymour, Connecticut was recorded at 10:00:00 on 2026-09-28.
What is the real-time air quality index for Seymour, Connecticut?
The real-time air quality index in Seymour, Connecticut is 20, currently categorized as Good.
Which pollutant is found most often in Seymour, Connecticut?
The most common pollutant in Seymour, Connecticut is O3.
What can I do if the air quality in Seymour, Connecticut is poor?
If the air quality in Seymour, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Seymour, Connecticut?
The measured PM2.5 levels in Seymour, Connecticut at present are 0.865 μg/m3.
What are the current PM10 levels at Seymour, Connecticut?
The current PM10 levels in Seymour, Connecticut are 2.438 μg/m3.
What are the current carbon monoxide (CO) levels at Seymour, Connecticut?
The current carbon monoxide (CO) level in Seymour, Connecticut is 0.274 ppm.
What are the current sulfur dioxide (SO2) levels at Seymour, Connecticut?
The current sulfur dioxide (SO2) levels in Seymour, Connecticut are 0.754 ppb.
What are the current ozone (O3) levels at Seymour, Connecticut?
The current ozone (O3) levels at Seymour, Connecticut is 21.768 ppm.
What are the current nitrogen dioxide (NO2) levels at Seymour, Connecticut?
The current nitrogen dioxide (NO2) levels at Seymour, Connecticut is 4.064 ppb.
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