Stay updated with real-time air quality in Wilmington, 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)
38
Good
Wilmington, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.41 μg/m³
0
55
155
255
425
605+
33.49 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
15.95 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wilmington, Delaware
Wilmington, Delaware
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AQI 38
Good
7.03μg/m³
PM2.5
25.60μg/m³
PM10
33.91ppb
O3
0.36ppb
SO2
15.38ppb
NO2
0.40ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
27.64μg/m³
PM10
35.59ppb
O3
0.39ppb
SO2
16.13ppb
NO2
0.39ppm
CO
AQI 38
Good
6.99μg/m³
PM2.5
28.96μg/m³
PM10
35.56ppb
O3
0.40ppb
SO2
16.17ppb
NO2
0.39ppm
CO
AQI 38
Good
7.48μg/m³
PM2.5
32.32μg/m³
PM10
36.05ppb
O3
0.42ppb
SO2
16.69ppb
NO2
0.41ppm
CO
AQI 38
Good
7.48μg/m³
PM2.5
29.18μg/m³
PM10
35.84ppb
O3
0.40ppb
SO2
15.31ppb
NO2
0.40ppm
CO
AQI 38
Good
6.93μg/m³
PM2.5
29.33μg/m³
PM10
32.15ppb
O3
0.32ppb
SO2
15.69ppb
NO2
0.38ppm
CO
Air quality data and pollutant measurements for Delaware, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Wilmington, Delaware is updated every hour.
The worst air quality in Wilmington, Delaware in the last 24 hours was observed at 03:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Wilmington, Delaware was observed at 07:00:00 on 2026-01-22.
The current air quality in Wilmington, Delaware is 38, categorized as Good based on real-time data.
The most common pollutant in Wilmington, Delaware is PM2.5.
If the air quality in Wilmington, Delaware is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Wilmington, Delaware is 7.246 μg/m3.
The current PM10 concentration at Wilmington, Delaware is 20.41 μg/m3.
The current carbon monoxide (CO) concentration at Wilmington, Delaware is 0.399 ppm.
The current sulfur dioxide (SO2) concentration at Wilmington, Delaware is 0.4 ppb.
The current ozone (O3) concentration at Wilmington, Delaware is 33.488 ppm.
The current nitrogen dioxide (NO2) concentration at Wilmington, Delaware is 15.952 ppb.
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