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)
30
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.41 μg/m³
0
55
155
255
425
605+
31.78 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
4.00 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mansfield, Connecticut
Mansfield, Connecticut
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AQI 44
Good
8.47μg/m³
PM2.5
24.01μg/m³
PM10
20.45ppb
O3
0.28ppb
SO2
20.70ppb
NO2
0.53ppm
CO
AQI 49
Good
9.41μg/m³
PM2.5
35.08μg/m³
PM10
21.53ppb
O3
0.31ppb
SO2
14.41ppb
NO2
0.52ppm
CO
AQI 54
Moderate
10.74μg/m³
PM2.5
47.13μg/m³
PM10
21.20ppb
O3
0.29ppb
SO2
22.20ppb
NO2
0.50ppm
CO
AQI 49
Good
9.38μg/m³
PM2.5
35.58μg/m³
PM10
5.94ppb
O3
0.29ppb
SO2
23.71ppb
NO2
0.53ppm
CO
AQI 49
Good
8.71μg/m³
PM2.5
33.84μg/m³
PM10
29.43ppb
O3
0.30ppb
SO2
23.88ppb
NO2
0.53ppm
CO
AQI 49
Good
8.87μg/m³
PM2.5
32.42μg/m³
PM10
20.85ppb
O3
0.30ppb
SO2
23.93ppb
NO2
0.51ppm
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 06:00:00, 2025-11-03.
The best air quality in Mansfield, Connecticut was observed at 04:00:00 on 2025-11-02.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 38.
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 6.656 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 16.305 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.526 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.284 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 21.437 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 18.394 ppb.
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