Stay updated with real-time air quality in Middletown, 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)
58
Moderate
Middletown, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.27 μg/m³
0
55
155
255
425
605+
19.13 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
28.53 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Middletown, Connecticut
Middletown, Connecticut
Scroll To Air Quality MapLoading...
AQI 58
Moderate
13.08μg/m³
PM2.5
35.22μg/m³
PM10
16.20ppb
O3
0.33ppb
SO2
29.23ppb
NO2
0.38ppm
CO
AQI 58
Moderate
13.17μg/m³
PM2.5
23.65μg/m³
PM10
8.10ppb
O3
0.36ppb
SO2
26.60ppb
NO2
0.38ppm
CO
AQI 58
Moderate
12.81μg/m³
PM2.5
29.23μg/m³
PM10
13.85ppb
O3
0.33ppb
SO2
30.79ppb
NO2
0.38ppm
CO
AQI 58
Moderate
12.62μg/m³
PM2.5
24.83μg/m³
PM10
15.03ppb
O3
0.34ppb
SO2
31.08ppb
NO2
0.38ppm
CO
AQI 60
Moderate
13.98μg/m³
PM2.5
41.50μg/m³
PM10
7.09ppb
O3
0.36ppb
SO2
26.45ppb
NO2
0.36ppm
CO
AQI 58
Moderate
13.17μg/m³
PM2.5
23.65μg/m³
PM10
8.10ppb
O3
0.36ppb
SO2
26.60ppb
NO2
0.38ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Middletown, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Middletown, Connecticut was at its worst at 02:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Middletown, Connecticut was observed at 08:00:00 on 2025-12-28.
As of now, the AQI in Middletown, Connecticut is 58, indicating Moderate conditions.
Middletown, Connecticut air has the highest levels of PM2.5.
Poor air quality in Middletown, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Middletown, Connecticut are currently 13.186 μg/m3.
The PM10 concentration in Middletown, Connecticut is 42.273 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Middletown, Connecticut is 0.38 ppm.
Currently, Middletown, Connecticut has a sulfur dioxide (SO2) concentration of 0.373 ppb.
The current ozone (O3) level in Middletown, Connecticut at the moment is 19.131 ppm.
Nitrogen dioxide (NO2) level in Middletown, Connecticut at the moment is 28.532 ppb.
All Rights Reserved © Ambee Inc. 2025