Stay updated with real-time air quality in Plainfield, 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)
33
Good
Plainfield, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.02 μg/m³
0
55
155
255
425
605+
30.57 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
2.85 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Plainfield, Connecticut
Plainfield, Connecticut
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AQI 38
Good
6.55μg/m³
PM2.5
17.09μg/m³
PM10
35.76ppb
O3
1.15ppb
SO2
10.21ppb
NO2
0.25ppm
CO
AQI 38
Good
7.15μg/m³
PM2.5
35.79μg/m³
PM10
36.31ppb
O3
1.08ppb
SO2
10.18ppb
NO2
0.24ppm
CO
AQI 38
Good
6.89μg/m³
PM2.5
37.14μg/m³
PM10
36.73ppb
O3
1.16ppb
SO2
9.05ppb
NO2
0.25ppm
CO
AQI 38
Good
6.74μg/m³
PM2.5
22.11μg/m³
PM10
34.14ppb
O3
1.18ppb
SO2
10.05ppb
NO2
0.25ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
15.15μg/m³
PM10
30.53ppb
O3
1.19ppb
SO2
10.38ppb
NO2
0.25ppm
CO
AQI 38
Good
7.11μg/m³
PM2.5
37.27μg/m³
PM10
39.14ppb
O3
1.06ppb
SO2
11.23ppb
NO2
0.26ppm
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 Plainfield, Connecticut is updated on an hourly basis.
The worst air quality in Plainfield, Connecticut was recorded at 05:00:00 on 2025-07-16.
The best air quality in Plainfield, Connecticut was recorded at 11:00:00 on 2025-07-16.
The real-time air quality index in Plainfield, Connecticut is 39, currently categorized as Good.
The most common pollutant in Plainfield, Connecticut is O3.
If the air quality in Plainfield, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Plainfield, Connecticut at present are 6.867 μg/m3.
The current PM10 levels in Plainfield, Connecticut are 34.857 μg/m3.
The current carbon monoxide (CO) level in Plainfield, Connecticut is 0.153 ppm.
The current sulfur dioxide (SO2) levels in Plainfield, Connecticut are 1.127 ppb.
The current ozone (O3) levels at Plainfield, Connecticut is 42.264 ppm.
The current nitrogen dioxide (NO2) levels at Plainfield, Connecticut is 4.51 ppb.
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