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)
23
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.69 μg/m³
0
55
155
255
425
605+
24.77 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
3.06 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mansfield, Connecticut
Mansfield, Connecticut
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AQI 23
Good
3.81μg/m³
PM2.5
10.13μg/m³
PM10
24.75ppb
O3
0.38ppb
SO2
3.09ppb
NO2
0.24ppm
CO
AQI 22
Good
3.63μg/m³
PM2.5
8.79μg/m³
PM10
19.21ppb
O3
0.36ppb
SO2
3.59ppb
NO2
0.23ppm
CO
AQI 25
Good
3.85μg/m³
PM2.5
8.62μg/m³
PM10
26.66ppb
O3
0.40ppb
SO2
6.73ppb
NO2
0.24ppm
CO
AQI 22
Good
4.08μg/m³
PM2.5
9.91μg/m³
PM10
22.54ppb
O3
0.40ppb
SO2
5.52ppb
NO2
0.26ppm
CO
AQI 22
Good
3.77μg/m³
PM2.5
9.30μg/m³
PM10
23.94ppb
O3
0.43ppb
SO2
5.78ppb
NO2
0.23ppm
CO
AQI 22
Good
3.99μg/m³
PM2.5
9.32μg/m³
PM10
19.84ppb
O3
0.42ppb
SO2
6.52ppb
NO2
0.24ppm
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 10:00:00, 2026-11-12.
The best air quality in Mansfield, Connecticut was observed at 06:00:00 on 2026-11-12.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 23.
In Mansfield, Connecticut, O3 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 3.75 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 8.693 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.237 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.379 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 24.773 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 3.057 ppb.
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