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)
57
Moderate
Tolland, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
66.86 μg/m³
0
55
155
255
425
605+
24.59 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
17.88 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tolland, Connecticut
Tolland, Connecticut
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AQI 54
Moderate
11.45μg/m³
PM2.5
60.31μg/m³
PM10
22.74ppb
O3
0.35ppb
SO2
17.66ppb
NO2
0.38ppm
CO
AQI 60
Moderate
14.24μg/m³
PM2.5
72.54μg/m³
PM10
16.14ppb
O3
0.37ppb
SO2
20.40ppb
NO2
0.40ppm
CO
AQI 64
Moderate
15.75μg/m³
PM2.5
32.55μg/m³
PM10
16.11ppb
O3
0.33ppb
SO2
24.32ppb
NO2
0.38ppm
CO
AQI 52
Moderate
10.33μg/m³
PM2.5
47.91μg/m³
PM10
29.50ppb
O3
0.36ppb
SO2
20.06ppb
NO2
0.39ppm
CO
AQI 44
Good
7.93μg/m³
PM2.5
37.08μg/m³
PM10
25.15ppb
O3
0.35ppb
SO2
17.65ppb
NO2
0.38ppm
CO
AQI 57
Moderate
11.76μg/m³
PM2.5
66.82μg/m³
PM10
19.43ppb
O3
0.37ppb
SO2
20.28ppb
NO2
0.40ppm
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 02:00:00 on 2025-12-28.
In the last 24 hrs, the best air quality in Tolland, Connecticut was observed at 07:00:00 on 2025-12-28.
The current air quality in Tolland, Connecticut is 57, categorized as Moderate based on real-time data.
The most common pollutant in Tolland, Connecticut is PM10.
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 11.888 μg/m3.
The current PM10 concentration at Tolland, Connecticut is 66.859 μg/m3.
The current carbon monoxide (CO) concentration at Tolland, Connecticut is 0.382 ppm.
The current sulfur dioxide (SO2) concentration at Tolland, Connecticut is 0.364 ppb.
The current ozone (O3) concentration at Tolland, Connecticut is 24.591 ppm.
The current nitrogen dioxide (NO2) concentration at Tolland, Connecticut is 17.876 ppb.
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