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)
44
Good
Plymouth, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.70 μg/m³
0
55
155
255
425
605+
43.10 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
5.05 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Plymouth, Connecticut
Plymouth, Connecticut
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AQI 38
Good
6.63μg/m³
PM2.5
25.37μg/m³
PM10
34.75ppb
O3
0.21ppb
SO2
9.35ppb
NO2
0.27ppm
CO
AQI 38
Good
6.65μg/m³
PM2.5
13.92μg/m³
PM10
35.83ppb
O3
0.23ppb
SO2
9.85ppb
NO2
0.23ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
14.17μg/m³
PM10
35.16ppb
O3
0.23ppb
SO2
10.02ppb
NO2
0.24ppm
CO
AQI 38
Good
6.70μg/m³
PM2.5
14.01μg/m³
PM10
34.97ppb
O3
0.22ppb
SO2
10.45ppb
NO2
0.24ppm
CO
AQI 39
Good
6.56μg/m³
PM2.5
26.14μg/m³
PM10
41.84ppb
O3
0.21ppb
SO2
9.89ppb
NO2
0.24ppm
CO
AQI 38
Good
6.61μg/m³
PM2.5
24.03μg/m³
PM10
34.80ppb
O3
0.24ppb
SO2
9.85ppb
NO2
0.28ppm
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 03:00:00, 2025-09-12.
The best air quality in Plymouth, Connecticut was observed at 07:00:00 on 2025-09-12.
The air quality in Plymouth, Connecticut right now is Good, with an AQI of 38.
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 6.669 μg/m3.
Plymouth, Connecticut currently has a PM10 concentration of 26.601 μg/m3.
The current carbon monoxide (CO) level in Plymouth, Connecticut is 0.251 ppm.
The current sulfur dioxide (SO2) concentration in Plymouth, Connecticut is 0.216 ppb.
Plymouth, Connecticut currently has an ozone (O3) concentration of 35.416 ppm.
The current level of nitrogen dioxide (NO2) in Plymouth, Connecticut is 9.592 ppb.
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