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)
31
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+
12.28 μg/m³
0
55
155
255
425
605+
33.99 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
8.10 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Smyrna, Delaware
Smyrna, Delaware
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AQI 32
Good
2.46μg/m³
PM2.5
11.74μg/m³
PM10
34.97ppb
O3
0.34ppb
SO2
7.37ppb
NO2
0.21ppm
CO
AQI 32
Good
2.70μg/m³
PM2.5
11.07μg/m³
PM10
34.99ppb
O3
0.31ppb
SO2
7.46ppb
NO2
0.21ppm
CO
AQI 29
Good
2.73μg/m³
PM2.5
11.51μg/m³
PM10
30.56ppb
O3
0.41ppb
SO2
7.46ppb
NO2
0.24ppm
CO
AQI 32
Good
2.76μg/m³
PM2.5
11.24μg/m³
PM10
34.71ppb
O3
0.30ppb
SO2
7.71ppb
NO2
0.21ppm
CO
AQI 31
Good
2.72μg/m³
PM2.5
10.99μg/m³
PM10
33.75ppb
O3
0.30ppb
SO2
7.79ppb
NO2
0.22ppm
CO
AQI 32
Good
3.29μg/m³
PM2.5
13.96μg/m³
PM10
35.34ppb
O3
0.31ppb
SO2
7.31ppb
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 03:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Smyrna, Delaware was observed at 01:00:00 on 2026-10-22.
As of now, the AQI in Smyrna, Delaware is 31, 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 2.904 μg/m3.
The PM10 concentration in Smyrna, Delaware is 12.279 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smyrna, Delaware is 0.212 ppm.
Currently, Smyrna, Delaware has a sulfur dioxide (SO2) concentration of 0.356 ppb.
The current ozone (O3) level in Smyrna, Delaware at the moment is 33.99 ppm.
Nitrogen dioxide (NO2) level in Smyrna, Delaware at the moment is 8.102 ppb.
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