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)
44
Good
Smyrna, Delaware
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.90 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.66 μg/m³
0
55
155
255
425
605+
46.64 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
2.60 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Smyrna, Delaware
Smyrna, Delaware
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AQI 44
Good
3.50μg/m³
PM2.5
15.99μg/m³
PM10
46.73ppb
O3
0.29ppb
SO2
2.61ppb
NO2
0.21ppm
CO
AQI 44
Good
3.12μg/m³
PM2.5
13.93μg/m³
PM10
47.25ppb
O3
0.25ppb
SO2
2.63ppb
NO2
0.21ppm
CO
AQI 47
Good
3.08μg/m³
PM2.5
12.62μg/m³
PM10
50.76ppb
O3
0.27ppb
SO2
2.84ppb
NO2
0.23ppm
CO
AQI 44
Good
3.19μg/m³
PM2.5
13.95μg/m³
PM10
46.95ppb
O3
0.24ppb
SO2
2.60ppb
NO2
0.21ppm
CO
AQI 44
Good
3.27μg/m³
PM2.5
14.00μg/m³
PM10
47.51ppb
O3
0.24ppb
SO2
2.64ppb
NO2
0.22ppm
CO
AQI 44
Good
2.80μg/m³
PM2.5
12.50μg/m³
PM10
47.01ppb
O3
0.24ppb
SO2
2.49ppb
NO2
0.21ppm
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 2026-07-22.
In the last 24 hours, the best air quality in Smyrna, Delaware was observed at 10:00:00 on 2026-07-23.
As of now, the AQI in Smyrna, Delaware is 44, indicating Good 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 2.905 μg/m3.
The PM10 concentration in Smyrna, Delaware is 11.663 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smyrna, Delaware is 0.21 ppm.
Currently, Smyrna, Delaware has a sulfur dioxide (SO2) concentration of 0.276 ppb.
The current ozone (O3) level in Smyrna, Delaware at the moment is 46.639 ppm.
Nitrogen dioxide (NO2) level in Smyrna, Delaware at the moment is 2.603 ppb.
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