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)
58
Moderate
Tolland, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.62 μg/m³
0
55
155
255
425
605+
32.82 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
2.62 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Tolland, Connecticut
Tolland, Connecticut
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AQI 58
Moderate
13.27μg/m³
PM2.5
31.22μg/m³
PM10
33.72ppb
O3
0.18ppb
SO2
2.38ppb
NO2
0.14ppm
CO
AQI 54
Moderate
10.92μg/m³
PM2.5
29.87μg/m³
PM10
34.05ppb
O3
0.18ppb
SO2
2.77ppb
NO2
0.16ppm
CO
AQI 58
Moderate
13.23μg/m³
PM2.5
19.96μg/m³
PM10
35.93ppb
O3
0.21ppb
SO2
3.82ppb
NO2
0.14ppm
CO
AQI 58
Moderate
12.77μg/m³
PM2.5
30.60μg/m³
PM10
31.65ppb
O3
0.19ppb
SO2
2.22ppb
NO2
0.15ppm
CO
AQI 58
Moderate
13.14μg/m³
PM2.5
32.38μg/m³
PM10
31.98ppb
O3
0.18ppb
SO2
2.08ppb
NO2
0.15ppm
CO
AQI 49
Good
9.13μg/m³
PM2.5
30.59μg/m³
PM10
34.04ppb
O3
0.18ppb
SO2
2.69ppb
NO2
0.17ppm
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 07:00:00 on 2026-06-29.
In the last 24 hrs, the best air quality in Tolland, Connecticut was observed at 12:00:00 on 2026-06-29.
The current air quality in Tolland, Connecticut is 58, categorized as Moderate based on real-time data.
The most common pollutant in Tolland, Connecticut is PM2.5.
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 13.31 μg/m3.
The current PM10 concentration at Tolland, Connecticut is 30.618 μg/m3.
The current carbon monoxide (CO) concentration at Tolland, Connecticut is 0.157 ppm.
The current sulfur dioxide (SO2) concentration at Tolland, Connecticut is 0.184 ppb.
The current ozone (O3) concentration at Tolland, Connecticut is 32.823 ppm.
The current nitrogen dioxide (NO2) concentration at Tolland, Connecticut is 2.616 ppb.
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