Stay updated with real-time air quality in Plainville, 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)
27
Good
Plainville, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.89 μg/m³
0
55
155
255
425
605+
19.59 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
4.86 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Plainville, Connecticut
Plainville, Connecticut
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AQI 33
Good
5.72μg/m³
PM2.5
25.03μg/m³
PM10
12.74ppb
O3
0.21ppb
SO2
9.34ppb
NO2
0.23ppm
CO
AQI 27
Good
4.86μg/m³
PM2.5
18.45μg/m³
PM10
17.40ppb
O3
0.26ppb
SO2
10.34ppb
NO2
0.20ppm
CO
AQI 27
Good
5.47μg/m³
PM2.5
17.42μg/m³
PM10
17.91ppb
O3
0.21ppb
SO2
10.41ppb
NO2
0.23ppm
CO
AQI 27
Good
4.90μg/m³
PM2.5
20.91μg/m³
PM10
17.37ppb
O3
0.25ppb
SO2
9.72ppb
NO2
0.21ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
25.03μg/m³
PM10
12.74ppb
O3
0.21ppb
SO2
9.34ppb
NO2
0.23ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
14.85μg/m³
PM10
11.28ppb
O3
0.22ppb
SO2
11.68ppb
NO2
0.22ppm
CO
Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Plainville, Connecticut is updated every hour.
The worst air quality in Plainville, Connecticut in the last 24 hours was observed at 07:00:00 on 2026-08-09.
In the last 24 hrs, the best air quality in Plainville, Connecticut was observed at 12:00:00 on 2026-08-10.
The current air quality in Plainville, Connecticut is 27, categorized as Good based on real-time data.
The most common pollutant in Plainville, Connecticut is PM2.5.
If the air quality in Plainville, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Plainville, Connecticut is 4.948 μg/m3.
The current PM10 concentration at Plainville, Connecticut is 20.93 μg/m3.
The current carbon monoxide (CO) concentration at Plainville, Connecticut is 0.207 ppm.
The current sulfur dioxide (SO2) concentration at Plainville, Connecticut is 0.256 ppb.
The current ozone (O3) concentration at Plainville, Connecticut is 19.532 ppm.
The current nitrogen dioxide (NO2) concentration at Plainville, Connecticut is 9.75 ppb.
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