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)
52
Moderate
Wilmington, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.52 μg/m³
0
55
155
255
425
605+
6.07 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
17.39 ppb
0
54
101
361
1250
2050+
0.50 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Wilmington, Delaware
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AQI 52
Moderate
10.03μg/m³
PM2.5
36.40μg/m³
PM10
8.55ppb
O3
0.46ppb
SO2
17.39ppb
NO2
0.50ppm
CO
AQI 52
Moderate
9.99μg/m³
PM2.5
41.02μg/m³
PM10
14.32ppb
O3
0.55ppb
SO2
18.65ppb
NO2
0.49ppm
CO
AQI 54
Moderate
11.06μg/m³
PM2.5
46.73μg/m³
PM10
18.48ppb
O3
0.66ppb
SO2
19.79ppb
NO2
0.49ppm
CO
AQI 52
Moderate
9.99μg/m³
PM2.5
44.06μg/m³
PM10
11.23ppb
O3
0.63ppb
SO2
21.15ppb
NO2
0.52ppm
CO
AQI 54
Moderate
11.25μg/m³
PM2.5
48.05μg/m³
PM10
7.66ppb
O3
0.44ppb
SO2
19.71ppb
NO2
0.51ppm
CO
AQI 38
Good
6.79μg/m³
PM2.5
27.88μg/m³
PM10
10.71ppb
O3
0.35ppb
SO2
15.94ppb
NO2
0.49ppm
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 02:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Wilmington, Delaware was observed at 06:00:00 on 2026-03-09.
The current air quality in Wilmington, Delaware is 52, categorized as Moderate 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 10.235 μg/m3.
The current PM10 concentration at Wilmington, Delaware is 21.521 μg/m3.
The current carbon monoxide (CO) concentration at Wilmington, Delaware is 0.497 ppm.
The current sulfur dioxide (SO2) concentration at Wilmington, Delaware is 0.571 ppb.
The current ozone (O3) concentration at Wilmington, Delaware is 6.072 ppm.
The current nitrogen dioxide (NO2) concentration at Wilmington, Delaware is 17.393 ppb.
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