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)
22
Good
Smyrna, Delaware
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.86 μg/m³
0
55
155
255
425
605+
13.94 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
10.41 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Smyrna, Delaware
Smyrna, Delaware
Scroll To Air Quality MapLoading...
AQI 22
Good
4.30μg/m³
PM2.5
18.99μg/m³
PM10
14.25ppb
O3
0.21ppb
SO2
9.69ppb
NO2
0.27ppm
CO
AQI 22
Good
3.81μg/m³
PM2.5
16.78μg/m³
PM10
12.42ppb
O3
0.20ppb
SO2
8.64ppb
NO2
0.27ppm
CO
AQI 22
Good
4.17μg/m³
PM2.5
18.88μg/m³
PM10
5.69ppb
O3
0.21ppb
SO2
9.21ppb
NO2
0.26ppm
CO
AQI 22
Good
3.78μg/m³
PM2.5
16.15μg/m³
PM10
13.19ppb
O3
0.19ppb
SO2
8.54ppb
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
AQI 27
Good
4.51μg/m³
PM2.5
19.83μg/m³
PM10
17.92ppb
O3
0.19ppb
SO2
8.52ppb
NO2
0.27ppm
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 08:00:00 on 2025-10-20.
In the last 24 hours, the best air quality in Smyrna, Delaware was observed at 07:00:00 on 2025-10-21.
As of now, the AQI in Smyrna, Delaware is 22, indicating Good conditions.
Smyrna, Delaware air has the highest levels of PM2.5.
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 4.183 μg/m3.
The PM10 concentration in Smyrna, Delaware is 18.86 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Smyrna, Delaware is 0.269 ppm.
Currently, Smyrna, Delaware has a sulfur dioxide (SO2) concentration of 0.209 ppb.
The current ozone (O3) level in Smyrna, Delaware at the moment is 13.942 ppm.
Nitrogen dioxide (NO2) level in Smyrna, Delaware at the moment is 10.413 ppb.
All Rights Reserved © Ambee Inc. 2025