Stay updated with real-time air quality in Plymouth, 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)
54
Moderate
Plymouth, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.83 μg/m³
0
55
155
255
425
605+
24.19 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
9.41 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Plymouth, Connecticut
Plymouth, Connecticut
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AQI 56
Moderate
11.62μg/m³
PM2.5
27.05μg/m³
PM10
22.12ppb
O3
0.45ppb
SO2
8.64ppb
NO2
0.22ppm
CO
AQI 56
Moderate
11.55μg/m³
PM2.5
21.36μg/m³
PM10
22.84ppb
O3
0.57ppb
SO2
10.31ppb
NO2
0.24ppm
CO
AQI 56
Moderate
11.62μg/m³
PM2.5
22.12μg/m³
PM10
22.01ppb
O3
0.56ppb
SO2
10.24ppb
NO2
0.23ppm
CO
AQI 56
Moderate
11.50μg/m³
PM2.5
21.02μg/m³
PM10
20.61ppb
O3
0.57ppb
SO2
9.39ppb
NO2
0.24ppm
CO
AQI 54
Moderate
11.03μg/m³
PM2.5
21.07μg/m³
PM10
24.40ppb
O3
0.45ppb
SO2
9.45ppb
NO2
0.23ppm
CO
AQI 56
Moderate
12.08μg/m³
PM2.5
27.94μg/m³
PM10
22.30ppb
O3
0.48ppb
SO2
8.42ppb
NO2
0.18ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Plymouth, Connecticut are available every hour.
Plymouth, Connecticut experienced its worst air quality at 09:00:00, 2025-06-06.
The best air quality in Plymouth, Connecticut was observed at 09:00:00 on 2025-06-07.
The air quality in Plymouth, Connecticut right now is Moderate, with an AQI of 54.
In Plymouth, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Plymouth, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Plymouth, Connecticut currently has a PM2.5 concentration of 10.515 μg/m3.
Plymouth, Connecticut currently has a PM10 concentration of 35.829 μg/m3.
The current carbon monoxide (CO) level in Plymouth, Connecticut is 0.232 ppm.
The current sulfur dioxide (SO2) concentration in Plymouth, Connecticut is 0.451 ppb.
Plymouth, Connecticut currently has an ozone (O3) concentration of 24.194 ppm.
The current level of nitrogen dioxide (NO2) in Plymouth, Connecticut is 9.409 ppb.
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