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)
44
Good
Middletown, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.54 μg/m³
0
55
155
255
425
605+
26.16 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
10.23 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Middletown, Connecticut
Middletown, Connecticut
Scroll To Air Quality MapLoading...
AQI 38
Good
7.44μg/m³
PM2.5
32.11μg/m³
PM10
10.58ppb
O3
0.66ppb
SO2
18.49ppb
NO2
0.45ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
31.32μg/m³
PM10
3.93ppb
O3
0.69ppb
SO2
25.90ppb
NO2
0.44ppm
CO
AQI 49
Good
9.29μg/m³
PM2.5
26.75μg/m³
PM10
8.54ppb
O3
0.64ppb
SO2
18.05ppb
NO2
0.46ppm
CO
AQI 54
Moderate
10.64μg/m³
PM2.5
20.78μg/m³
PM10
19.34ppb
O3
0.43ppb
SO2
22.59ppb
NO2
0.47ppm
CO
AQI 44
Good
7.59μg/m³
PM2.5
30.10μg/m³
PM10
7.76ppb
O3
0.71ppb
SO2
23.81ppb
NO2
0.35ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
31.32μg/m³
PM10
3.93ppb
O3
0.69ppb
SO2
25.90ppb
NO2
0.44ppm
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 2025-11-03.
In the last 24 hours, the best air quality in Middletown, Connecticut was observed at 03:00:00 on 2025-11-02.
As of now, the AQI in Middletown, Connecticut is 49, 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 9.026 μg/m3.
The PM10 concentration in Middletown, Connecticut is 38.596 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Middletown, Connecticut is 0.437 ppm.
Currently, Middletown, Connecticut has a sulfur dioxide (SO2) concentration of 0.668 ppb.
The current ozone (O3) level in Middletown, Connecticut at the moment is 16.859 ppm.
Nitrogen dioxide (NO2) level in Middletown, Connecticut at the moment is 18.232 ppb.
All Rights Reserved © Ambee Inc. 2025