Stay updated with real-time air quality in Mansfield, 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)
49
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.59 μg/m³
0
55
155
255
425
605+
34.04 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
2.69 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mansfield, Connecticut
Mansfield, Connecticut
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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 44
Good
8.15μg/m³
PM2.5
27.41μg/m³
PM10
33.87ppb
O3
0.18ppb
SO2
4.31ppb
NO2
0.17ppm
CO
AQI 58
Moderate
13.31μg/m³
PM2.5
30.62μg/m³
PM10
32.82ppb
O3
0.18ppb
SO2
2.62ppb
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
13.27μg/m³
PM2.5
31.22μg/m³
PM10
33.72ppb
O3
0.18ppb
SO2
2.38ppb
NO2
0.14ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Mansfield, Connecticut are available every hour.
Mansfield, Connecticut experienced its worst air quality at 09:00:00, 2026-06-28.
The best air quality in Mansfield, Connecticut was observed at 01:00:00 on 2026-06-29.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 49.
In Mansfield, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Mansfield, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Mansfield, Connecticut currently has a PM2.5 concentration of 9.125 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 30.586 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.165 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.182 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 34.042 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 2.687 ppb.
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