Current air quality index in Delaware, USA today
Stay updated with real-time air quality in Delaware, USA 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
Delaware, USA
Last updated: ... (Local time)
Common air pollutants in Delaware, USA
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
19.37 μg/m³
0
55
155
255
425
605+
Ozone (O3)
21.43 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.29 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
4.57 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.36 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Delaware, USA
Delaware, USA
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Air quality in cities of Delaware, USA
| No results found | |||||||
| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
Air quality in nearby states
Maryland, USA
AQI 27
Good
5.09μg/m³
PM2.5
21.60μg/m³
PM10
23.80ppb
O3
0.19ppb
SO2
7.04ppb
NO2
0.23ppm
CO
New Jersey, USA
AQI 33
Good
5.66μg/m³
PM2.5
23.31μg/m³
PM10
12.55ppb
O3
0.56ppb
SO2
16.77ppb
NO2
0.38ppm
CO
New York, USA
AQI 27
Good
5.42μg/m³
PM2.5
22.96μg/m³
PM10
21.96ppb
O3
0.69ppb
SO2
10.95ppb
NO2
0.33ppm
CO
Pennsylvania, USA
AQI 33
Good
5.81μg/m³
PM2.5
24.76μg/m³
PM10
19.92ppb
O3
0.91ppb
SO2
8.73ppb
NO2
0.28ppm
CO
Virginia, USA
AQI 27
Good
5.44μg/m³
PM2.5
19.45μg/m³
PM10
20.10ppb
O3
0.42ppb
SO2
6.60ppb
NO2
0.22ppm
CO
Connecticut, USA
AQI 33
Good
5.69μg/m³
PM2.5
19.82μg/m³
PM10
9.11ppb
O3
0.33ppb
SO2
14.71ppb
NO2
0.44ppm
CO
How accurate is Delaware, USA air quality data?
The air quality data for Delaware, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Frequently asked questions
How frequently does the air quality data for Delaware, USA get updated?
Air quality updates for Delaware, USA are available every hour.
What time in the past 24 hours saw the poorest air quality in Delaware, USA?
Delaware, USA experienced its worst air quality at 11:00:00, 2025-09-03.
When was air quality in Delaware, USA the best over the past 24 hours?
The best air quality in Delaware, USA was observed at 12:00:00 on 2025-09-04.
What is the air quality in Delaware, USA right now?
The air quality in Delaware, USA right now is Good, with an AQI of 22.
What pollutant is most frequently found in Delaware, USA?
In Delaware, USA, PM2.5 is the most frequently found pollutant.
What can I do if the air quality in Delaware, USA is poor?
When air quality in Delaware, USA is compromised, staying indoors and wearing a mask can reduce health risks.
What is the PM2.5 concentration in Delaware, USA right now?
Delaware, USA currently has a PM2.5 concentration of 3.612 μg/m3.
What is the current level of PM10 in Delaware, USA?
Delaware, USA currently has a PM10 concentration of 16.404 μg/m3.
What is the current level of carbon monoxide (CO) in Delaware, USA?
The current carbon monoxide (CO) level in Delaware, USA is 0.321 ppm.
What is the current level of sulfur dioxide (SO2) in Delaware, USA?
The current sulfur dioxide (SO2) concentration in Delaware, USA is 0.305 ppb.
What is the current level of ozone (O3) in Delaware, USA?
Delaware, USA currently has an ozone (O3) concentration of 16.626 ppm.
What is the current level of nitrogen dioxide (NO2) in Delaware, USA?
The current level of nitrogen dioxide (NO2) in Delaware, USA is 8.548 ppb.
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