Stay updated with real-time air quality in Dover, 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)
30
Good
Dover, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.16 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.03 μg/m³
0
55
155
255
425
605+
32.09 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
1.87 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Dover, Delaware
Dover, Delaware
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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 33
Good
5.90μg/m³
PM2.5
35.02μg/m³
PM10
29.75ppb
O3
0.56ppb
SO2
1.85ppb
NO2
0.20ppm
CO
AQI 29
Good
3.77μg/m³
PM2.5
16.71μg/m³
PM10
30.81ppb
O3
0.24ppb
SO2
2.67ppb
NO2
0.21ppm
CO
AQI 27
Good
4.94μg/m³
PM2.5
22.44μg/m³
PM10
28.89ppb
O3
0.67ppb
SO2
2.18ppb
NO2
0.20ppm
CO
AQI 31
Good
4.45μg/m³
PM2.5
17.03μg/m³
PM10
33.82ppb
O3
0.72ppb
SO2
1.03ppb
NO2
0.20ppm
CO
AQI 29
Good
3.73μg/m³
PM2.5
16.07μg/m³
PM10
30.88ppb
O3
0.25ppb
SO2
2.46ppb
NO2
0.21ppm
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 Dover, Delaware is updated every hour.
The worst air quality in Dover, Delaware in the last 24 hours was observed at 09:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Dover, Delaware was observed at 08:00:00 on 2026-06-08.
The current air quality in Dover, Delaware is 30, categorized as Good based on real-time data.
The most common pollutant in Dover, Delaware is O3.
If the air quality in Dover, Delaware is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Dover, Delaware is 4.16 μg/m3.
The current PM10 concentration at Dover, Delaware is 20.029 μg/m3.
The current carbon monoxide (CO) concentration at Dover, Delaware is 0.204 ppm.
The current sulfur dioxide (SO2) concentration at Dover, Delaware is 0.529 ppb.
The current ozone (O3) concentration at Dover, Delaware is 32.09 ppm.
The current nitrogen dioxide (NO2) concentration at Dover, Delaware is 1.867 ppb.
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