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

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.15 μg/m³
0
55
155
255
425
605+
22.07 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
5.57 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Waterford, Connecticut
Waterford, Connecticut
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AQI 20
Good
1.30μg/m³
PM2.5
3.02μg/m³
PM10
22.01ppb
O3
0.48ppb
SO2
5.58ppb
NO2
0.28ppm
CO
AQI 20
Good
1.30μg/m³
PM2.5
3.02μg/m³
PM10
22.01ppb
O3
0.48ppb
SO2
5.58ppb
NO2
0.28ppm
CO
AQI 20
Good
1.33μg/m³
PM2.5
5.63μg/m³
PM10
21.91ppb
O3
0.49ppb
SO2
5.20ppb
NO2
0.29ppm
CO
AQI 20
Good
1.27μg/m³
PM2.5
3.30μg/m³
PM10
22.13ppb
O3
0.48ppb
SO2
5.58ppb
NO2
0.28ppm
CO
AQI 20
Good
1.26μg/m³
PM2.5
3.70μg/m³
PM10
22.09ppb
O3
0.47ppb
SO2
5.64ppb
NO2
0.28ppm
CO
AQI 20
Good
0.89μg/m³
PM2.5
2.02μg/m³
PM10
22.41ppb
O3
0.48ppb
SO2
5.81ppb
NO2
0.28ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Waterford, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Waterford, Connecticut was at its worst at 03:00:00 on 2026-09-28.
In the last 24 hours, the best air quality in Waterford, Connecticut was observed at 09:00:00 on 2026-09-28.
As of now, the AQI in Waterford, Connecticut is 20, indicating Good conditions.
Waterford, Connecticut air has the highest levels of O3.
Poor air quality in Waterford, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Waterford, Connecticut are currently 1.29 μg/m3.
The PM10 concentration in Waterford, Connecticut is 3.145 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterford, Connecticut is 0.284 ppm.
Currently, Waterford, Connecticut has a sulfur dioxide (SO2) concentration of 0.483 ppb.
The current ozone (O3) level in Waterford, Connecticut at the moment is 22.065 ppm.
Nitrogen dioxide (NO2) level in Waterford, Connecticut at the moment is 5.566 ppb.
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