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)
27
Good
Mansfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.10 μg/m³
0
55
155
255
425
605+
26.21 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
3.02 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mansfield, Connecticut
Mansfield, Connecticut
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AQI 33
Good
5.82μg/m³
PM2.5
16.54μg/m³
PM10
26.49ppb
O3
0.32ppb
SO2
3.82ppb
NO2
0.22ppm
CO
AQI 27
Good
4.57μg/m³
PM2.5
16.14μg/m³
PM10
23.02ppb
O3
0.32ppb
SO2
3.56ppb
NO2
0.22ppm
CO
AQI 38
Good
6.69μg/m³
PM2.5
22.28μg/m³
PM10
27.26ppb
O3
0.49ppb
SO2
3.69ppb
NO2
0.21ppm
CO
AQI 38
Good
7.39μg/m³
PM2.5
28.25μg/m³
PM10
27.39ppb
O3
0.51ppb
SO2
4.30ppb
NO2
0.21ppm
CO
AQI 33
Good
6.22μg/m³
PM2.5
21.01μg/m³
PM10
24.22ppb
O3
0.49ppb
SO2
3.18ppb
NO2
0.23ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
21.08μg/m³
PM10
24.31ppb
O3
0.51ppb
SO2
3.63ppb
NO2
0.22ppm
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 04:00:00, 2026-08-14.
The best air quality in Mansfield, Connecticut was observed at 04:00:00 on 2026-08-14.
The air quality in Mansfield, Connecticut right now is Good, with an AQI of 27.
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 5.337 μg/m3.
Mansfield, Connecticut currently has a PM10 concentration of 17.099 μg/m3.
The current carbon monoxide (CO) level in Mansfield, Connecticut is 0.197 ppm.
The current sulfur dioxide (SO2) concentration in Mansfield, Connecticut is 0.169 ppb.
Mansfield, Connecticut currently has an ozone (O3) concentration of 26.211 ppm.
The current level of nitrogen dioxide (NO2) in Mansfield, Connecticut is 3.015 ppb.
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