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)
44
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.08 μg/m³
0
55
155
255
425
605+
46.56 ppb
0
55
71
86
201
201+
0.18 ppb
0
36
76
186
605
1005+
3.94 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mansfield, Connecticut
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AQI 43
Good
4.79μg/m³
PM2.5
17.03μg/m³
PM10
46.06ppb
O3
0.22ppb
SO2
5.18ppb
NO2
0.23ppm
CO
AQI 44
Good
4.36μg/m³
PM2.5
14.37μg/m³
PM10
46.52ppb
O3
0.17ppb
SO2
2.79ppb
NO2
0.23ppm
CO
AQI 43
Good
4.93μg/m³
PM2.5
14.52μg/m³
PM10
45.97ppb
O3
0.21ppb
SO2
5.45ppb
NO2
0.24ppm
CO
AQI 43
Good
5.02μg/m³
PM2.5
13.97μg/m³
PM10
46.34ppb
O3
0.25ppb
SO2
5.31ppb
NO2
0.25ppm
CO
AQI 44
Good
4.75μg/m³
PM2.5
16.04μg/m³
PM10
47.56ppb
O3
0.24ppb
SO2
4.78ppb
NO2
0.23ppm
CO
AQI 44
Good
4.87μg/m³
PM2.5
16.14μg/m³
PM10
46.99ppb
O3
0.26ppb
SO2
5.13ppb
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 09:00:00, 2026-03-29.
The best air quality in Mansfield, Connecticut was observed at 11:00:00 on 2026-03-29.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 44.
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 4.744 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 17.083 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.231 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.179 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 46.556 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 3.943 ppb.
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