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)
38
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.05 μg/m³
0
55
155
255
425
605+
40.65 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
6.01 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mansfield, Connecticut
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AQI 38
Good
5.83μg/m³
PM2.5
19.33μg/m³
PM10
40.59ppb
O3
0.13ppb
SO2
6.41ppb
NO2
0.15ppm
CO
AQI 37
Good
6.16μg/m³
PM2.5
19.03μg/m³
PM10
39.58ppb
O3
0.13ppb
SO2
5.23ppb
NO2
0.15ppm
CO
AQI 40
Good
5.85μg/m³
PM2.5
19.35μg/m³
PM10
42.88ppb
O3
0.14ppb
SO2
6.95ppb
NO2
0.14ppm
CO
AQI 44
Good
7.86μg/m³
PM2.5
26.02μg/m³
PM10
39.90ppb
O3
0.14ppb
SO2
8.33ppb
NO2
0.13ppm
CO
AQI 38
Good
6.26μg/m³
PM2.5
21.39μg/m³
PM10
41.46ppb
O3
0.14ppb
SO2
6.84ppb
NO2
0.14ppm
CO
AQI 38
Good
6.34μg/m³
PM2.5
21.15μg/m³
PM10
41.10ppb
O3
0.13ppb
SO2
8.28ppb
NO2
0.13ppm
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 02:00:00, 2026-03-16.
The best air quality in Mansfield, Connecticut was observed at 12:00:00 on 2026-03-15.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 38.
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 6.368 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 19.045 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.152 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.168 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 40.652 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 6.008 ppb.
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