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)
44
Good
Waterford, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.39 μg/m³
0
55
155
255
425
605+
48.05 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
2.91 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Waterford, Connecticut
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AQI 44
Good
4.79μg/m³
PM2.5
10.03μg/m³
PM10
48.00ppb
O3
0.32ppb
SO2
2.81ppb
NO2
0.20ppm
CO
AQI 44
Good
4.79μg/m³
PM2.5
10.03μg/m³
PM10
48.00ppb
O3
0.32ppb
SO2
2.81ppb
NO2
0.20ppm
CO
AQI 44
Good
4.76μg/m³
PM2.5
12.71μg/m³
PM10
48.06ppb
O3
0.32ppb
SO2
2.88ppb
NO2
0.19ppm
CO
AQI 44
Good
4.64μg/m³
PM2.5
11.09μg/m³
PM10
48.09ppb
O3
0.32ppb
SO2
3.09ppb
NO2
0.20ppm
CO
AQI 44
Good
4.46μg/m³
PM2.5
11.07μg/m³
PM10
48.00ppb
O3
0.32ppb
SO2
2.92ppb
NO2
0.21ppm
CO
AQI 44
Good
4.72μg/m³
PM2.5
18.28μg/m³
PM10
47.78ppb
O3
0.32ppb
SO2
2.88ppb
NO2
0.21ppm
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 10:00:00 on 2026-03-29.
In the last 24 hours, the best air quality in Waterford, Connecticut was observed at 02:00:00 on 2026-03-29.
As of now, the AQI in Waterford, Connecticut is 44, 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 4.744 μg/m3.
The PM10 concentration in Waterford, Connecticut is 10.395 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterford, Connecticut is 0.201 ppm.
Currently, Waterford, Connecticut has a sulfur dioxide (SO2) concentration of 0.321 ppb.
The current ozone (O3) level in Waterford, Connecticut at the moment is 48.045 ppm.
Nitrogen dioxide (NO2) level in Waterford, Connecticut at the moment is 2.907 ppb.
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