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)
22
Good
Middletown, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.74 μg/m³
0
55
155
255
425
605+
19.63 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
5.79 ppb
0
54
101
361
1250
2050+
0.26 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 22
Good
4.44μg/m³
PM2.5
9.75μg/m³
PM10
17.59ppb
O3
0.38ppb
SO2
5.97ppb
NO2
0.26ppm
CO
AQI 22
Good
4.40μg/m³
PM2.5
11.37μg/m³
PM10
18.71ppb
O3
0.39ppb
SO2
6.48ppb
NO2
0.26ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
9.88μg/m³
PM10
16.32ppb
O3
0.39ppb
SO2
6.02ppb
NO2
0.27ppm
CO
AQI 22
Good
4.30μg/m³
PM2.5
10.04μg/m³
PM10
21.44ppb
O3
0.38ppb
SO2
4.59ppb
NO2
0.25ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
9.40μg/m³
PM10
19.79ppb
O3
0.38ppb
SO2
6.71ppb
NO2
0.26ppm
CO
AQI 22
Good
4.40μg/m³
PM2.5
11.37μg/m³
PM10
18.71ppb
O3
0.39ppb
SO2
6.48ppb
NO2
0.26ppm
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 05:00:00 on 2026-11-12.
In the last 24 hours, the best air quality in Middletown, Connecticut was observed at 11:00:00 on 2026-11-12.
As of now, the AQI in Middletown, Connecticut is 22, indicating Good 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 4.465 μg/m3.
The PM10 concentration in Middletown, Connecticut is 9.744 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Middletown, Connecticut is 0.255 ppm.
Currently, Middletown, Connecticut has a sulfur dioxide (SO2) concentration of 0.379 ppb.
The current ozone (O3) level in Middletown, Connecticut at the moment is 19.628 ppm.
Nitrogen dioxide (NO2) level in Middletown, Connecticut at the moment is 5.794 ppb.
All Rights Reserved © Ambee Inc. 2025