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)
23
Good
Middletown, Delaware
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.63 μg/m³
0
55
155
255
425
605+
25.28 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
8.74 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Middletown, Delaware
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AQI 28
Good
3.89μg/m³
PM2.5
20.24μg/m³
PM10
29.59ppb
O3
0.49ppb
SO2
7.47ppb
NO2
0.28ppm
CO
AQI 25
Good
4.06μg/m³
PM2.5
14.60μg/m³
PM10
26.67ppb
O3
0.45ppb
SO2
7.53ppb
NO2
0.28ppm
CO
AQI 29
Good
3.13μg/m³
PM2.5
15.15μg/m³
PM10
31.05ppb
O3
0.59ppb
SO2
7.67ppb
NO2
0.28ppm
CO
AQI 28
Good
3.90μg/m³
PM2.5
18.86μg/m³
PM10
29.72ppb
O3
0.51ppb
SO2
7.53ppb
NO2
0.28ppm
CO
AQI 28
Good
3.55μg/m³
PM2.5
16.17μg/m³
PM10
30.11ppb
O3
0.51ppb
SO2
7.50ppb
NO2
0.28ppm
CO
AQI 28
Good
3.58μg/m³
PM2.5
15.95μg/m³
PM10
29.72ppb
O3
0.47ppb
SO2
7.34ppb
NO2
0.28ppm
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 02:00:00, 2025-07-17.
The best air quality in Middletown, Delaware was observed at 03:00:00 on 2025-07-16.
The air quality in Middletown, Delaware right now is Good, with an AQI of 24.
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 3.621 μg/m3.
Middletown, Delaware currently has a PM10 concentration of 16.899 μg/m3.
The current carbon monoxide (CO) level in Middletown, Delaware is 0.258 ppm.
The current sulfur dioxide (SO2) concentration in Middletown, Delaware is 0.772 ppb.
Middletown, Delaware currently has an ozone (O3) concentration of 25.817 ppm.
The current level of nitrogen dioxide (NO2) in Middletown, Delaware is 8.239 ppb.
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