Stay updated with real-time air quality in Tolland, 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)
36
Good
Tolland, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.12 μg/m³
0
55
155
255
425
605+
38.90 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
5.14 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tolland, Connecticut
Tolland, Connecticut
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AQI 41
Good
6.40μg/m³
PM2.5
25.74μg/m³
PM10
44.43ppb
O3
0.41ppb
SO2
3.72ppb
NO2
0.29ppm
CO
AQI 38
Good
6.21μg/m³
PM2.5
24.19μg/m³
PM10
40.52ppb
O3
0.40ppb
SO2
4.20ppb
NO2
0.30ppm
CO
AQI 38
Good
6.91μg/m³
PM2.5
23.28μg/m³
PM10
40.40ppb
O3
0.40ppb
SO2
4.38ppb
NO2
0.29ppm
CO
AQI 41
Good
6.18μg/m³
PM2.5
28.25μg/m³
PM10
43.81ppb
O3
0.42ppb
SO2
3.46ppb
NO2
0.29ppm
CO
AQI 41
Good
6.19μg/m³
PM2.5
28.38μg/m³
PM10
43.95ppb
O3
0.42ppb
SO2
3.31ppb
NO2
0.29ppm
CO
AQI 37
Good
6.19μg/m³
PM2.5
24.39μg/m³
PM10
39.77ppb
O3
0.40ppb
SO2
4.34ppb
NO2
0.30ppm
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 Tolland, Connecticut is updated every hour.
The worst air quality in Tolland, Connecticut in the last 24 hours was observed at 09:00:00 on 2026-08-07.
In the last 24 hrs, the best air quality in Tolland, Connecticut was observed at 02:00:00 on 2026-08-08.
The current air quality in Tolland, Connecticut is 37, categorized as Good based on real-time data.
The most common pollutant in Tolland, Connecticut is O3.
If the air quality in Tolland, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Tolland, Connecticut is 6.157 μg/m3.
The current PM10 concentration at Tolland, Connecticut is 24.151 μg/m3.
The current carbon monoxide (CO) concentration at Tolland, Connecticut is 0.296 ppm.
The current sulfur dioxide (SO2) concentration at Tolland, Connecticut is 0.4 ppb.
The current ozone (O3) concentration at Tolland, Connecticut is 40.371 ppm.
The current nitrogen dioxide (NO2) concentration at Tolland, Connecticut is 4.081 ppb.
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