Stay updated with real-time air quality in Middletown, Delaware 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)
29
Good
Middletown, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.71 μg/m³
0
55
155
255
425
605+
30.81 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
2.67 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Middletown, Delaware
Scroll To Air Quality MapLoading...
AQI 29
Good
3.73μg/m³
PM2.5
16.07μg/m³
PM10
30.88ppb
O3
0.25ppb
SO2
2.46ppb
NO2
0.21ppm
CO
AQI 29
Good
3.70μg/m³
PM2.5
17.88μg/m³
PM10
30.76ppb
O3
0.49ppb
SO2
2.10ppb
NO2
0.20ppm
CO
AQI 28
Good
3.49μg/m³
PM2.5
15.16μg/m³
PM10
30.13ppb
O3
0.33ppb
SO2
2.37ppb
NO2
0.21ppm
CO
AQI 28
Good
3.77μg/m³
PM2.5
16.02μg/m³
PM10
30.37ppb
O3
0.33ppb
SO2
2.54ppb
NO2
0.21ppm
CO
AQI 28
Good
4.18μg/m³
PM2.5
17.72μg/m³
PM10
29.50ppb
O3
0.37ppb
SO2
2.35ppb
NO2
0.21ppm
CO
AQI 27
Good
4.54μg/m³
PM2.5
19.77μg/m³
PM10
28.86ppb
O3
0.38ppb
SO2
2.24ppb
NO2
0.21ppm
CO
The air quality data for Delaware, 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 Middletown, Delaware are available every hour.
Middletown, Delaware experienced its worst air quality at 08:00:00, 2026-06-07.
The best air quality in Middletown, Delaware was observed at 01:00:00 on 2026-06-07.
The air quality in Middletown, Delaware right now is Good, with an AQI of 29.
In Middletown, Delaware, O3 is the most frequently found pollutant.
When air quality in Middletown, Delaware is compromised, staying indoors and wearing a mask can reduce health risks.
Middletown, Delaware currently has a PM2.5 concentration of 3.765 μg/m3.
Middletown, Delaware currently has a PM10 concentration of 16.706 μg/m3.
The current carbon monoxide (CO) level in Middletown, Delaware is 0.208 ppm.
The current sulfur dioxide (SO2) concentration in Middletown, Delaware is 0.245 ppb.
Middletown, Delaware currently has an ozone (O3) concentration of 30.806 ppm.
The current level of nitrogen dioxide (NO2) in Middletown, Delaware is 2.675 ppb.
All Rights Reserved © Ambee Inc. 2025