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)
27
Good
Wilmington, Delaware
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.20 μg/m³
0
55
155
255
425
605+
18.02 ppb
0
55
71
86
201
201+
0.15 ppb
0
36
76
186
605
1005+
9.05 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wilmington, Delaware
Wilmington, Delaware
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AQI 22
Good
4.15μg/m³
PM2.5
15.21μg/m³
PM10
16.49ppb
O3
0.14ppb
SO2
9.05ppb
NO2
0.27ppm
CO
AQI 27
Good
4.54μg/m³
PM2.5
18.45μg/m³
PM10
18.14ppb
O3
0.18ppb
SO2
8.77ppb
NO2
0.27ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
18.34μg/m³
PM10
19.38ppb
O3
0.18ppb
SO2
8.84ppb
NO2
0.27ppm
CO
AQI 22
Good
4.00μg/m³
PM2.5
17.55μg/m³
PM10
16.04ppb
O3
0.16ppb
SO2
9.10ppb
NO2
0.27ppm
CO
AQI 22
Good
4.11μg/m³
PM2.5
17.26μg/m³
PM10
15.71ppb
O3
0.14ppb
SO2
9.07ppb
NO2
0.27ppm
CO
AQI 22
Good
3.86μg/m³
PM2.5
16.21μg/m³
PM10
13.04ppb
O3
0.19ppb
SO2
8.68ppb
NO2
0.27ppm
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 08:00:00 on 2025-10-20.
In the last 24 hrs, the best air quality in Wilmington, Delaware was observed at 02:00:00 on 2025-10-20.
The current air quality in Wilmington, Delaware is 27, 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 4.621 μg/m3.
The current PM10 concentration at Wilmington, Delaware is 10.199 μg/m3.
The current carbon monoxide (CO) concentration at Wilmington, Delaware is 0.269 ppm.
The current sulfur dioxide (SO2) concentration at Wilmington, Delaware is 0.146 ppb.
The current ozone (O3) concentration at Wilmington, Delaware is 18.018 ppm.
The current nitrogen dioxide (NO2) concentration at Wilmington, Delaware is 9.053 ppb.
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