Stay updated with real-time air quality in Waterbury, 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
Waterbury, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.02 μg/m³
0
55
155
255
425
605+
13.00 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
12.83 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Waterbury, Connecticut
Waterbury, Connecticut
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AQI 60
Moderate
14.37μg/m³
PM2.5
23.30μg/m³
PM10
16.59ppb
O3
0.27ppb
SO2
11.02ppb
NO2
0.41ppm
CO
AQI 60
Moderate
14.39μg/m³
PM2.5
23.11μg/m³
PM10
17.74ppb
O3
0.33ppb
SO2
11.07ppb
NO2
0.39ppm
CO
AQI 60
Moderate
14.23μg/m³
PM2.5
22.73μg/m³
PM10
16.00ppb
O3
0.31ppb
SO2
10.83ppb
NO2
0.41ppm
CO
AQI 62
Moderate
15.01μg/m³
PM2.5
47.09μg/m³
PM10
15.96ppb
O3
0.25ppb
SO2
11.11ppb
NO2
0.39ppm
CO
AQI 62
Moderate
15.40μg/m³
PM2.5
52.84μg/m³
PM10
11.80ppb
O3
0.30ppb
SO2
10.98ppb
NO2
0.42ppm
CO
AQI 62
Moderate
15.27μg/m³
PM2.5
38.86μg/m³
PM10
19.61ppb
O3
0.68ppb
SO2
10.17ppb
NO2
0.41ppm
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 Waterbury, Connecticut is updated on an hourly basis.
The worst air quality in Waterbury, Connecticut was recorded at 12:00:00 on 2025-07-28.
The best air quality in Waterbury, Connecticut was recorded at 10:00:00 on 2025-07-28.
The real-time air quality index in Waterbury, Connecticut is 60, currently categorized as Moderate.
The most common pollutant in Waterbury, Connecticut is PM2.5.
If the air quality in Waterbury, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Waterbury, Connecticut at present are 14.202 μg/m3.
The current PM10 levels in Waterbury, Connecticut are 22.02 μg/m3.
The current carbon monoxide (CO) level in Waterbury, Connecticut is 0.407 ppm.
The current sulfur dioxide (SO2) levels in Waterbury, Connecticut are 0.28 ppb.
The current ozone (O3) levels at Waterbury, Connecticut is 15.767 ppm.
The current nitrogen dioxide (NO2) levels at Waterbury, Connecticut is 10.607 ppb.
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