Stay updated with real-time air quality in Smyrna, 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)
64
Moderate
Smyrna, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.53 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.94 μg/m³
0
55
155
255
425
605+
58.95 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
5.05 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Smyrna, Delaware
Smyrna, Delaware
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AQI 64
Moderate
10.01μg/m³
PM2.5
41.73μg/m³
PM10
59.07ppb
O3
0.23ppb
SO2
4.95ppb
NO2
0.24ppm
CO
AQI 71
Moderate
8.54μg/m³
PM2.5
37.35μg/m³
PM10
60.52ppb
O3
0.31ppb
SO2
5.47ppb
NO2
0.23ppm
CO
AQI 74
Moderate
11.32μg/m³
PM2.5
33.87μg/m³
PM10
62.11ppb
O3
0.39ppb
SO2
3.69ppb
NO2
0.24ppm
CO
AQI 67
Moderate
8.74μg/m³
PM2.5
37.60μg/m³
PM10
60.46ppb
O3
0.31ppb
SO2
5.78ppb
NO2
0.24ppm
CO
AQI 71
Moderate
8.77μg/m³
PM2.5
37.42μg/m³
PM10
60.53ppb
O3
0.25ppb
SO2
5.88ppb
NO2
0.24ppm
CO
AQI 71
Moderate
8.60μg/m³
PM2.5
37.75μg/m³
PM10
61.43ppb
O3
0.32ppb
SO2
7.12ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Delaware, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Smyrna, Delaware is updated every hour for accuracy.
In the past 24 hours, the air quality in Smyrna, Delaware was at its worst at 10:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Smyrna, Delaware was observed at 11:00:00 on 2026-04-23.
As of now, the AQI in Smyrna, Delaware is 64, indicating Moderate conditions.
Smyrna, Delaware air has the highest levels of O3.
Poor air quality in Smyrna, Delaware means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Smyrna, Delaware are currently 9.533 μg/m3.
The PM10 concentration in Smyrna, Delaware is 39.938 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smyrna, Delaware is 0.238 ppm.
Currently, Smyrna, Delaware has a sulfur dioxide (SO2) concentration of 0.355 ppb.
The current ozone (O3) level in Smyrna, Delaware at the moment is 58.946 ppm.
Nitrogen dioxide (NO2) level in Smyrna, Delaware at the moment is 5.054 ppb.
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