AQI

Delaware Air Quality Index & Realtime Air Pollution

Live AQI
150(AQI-US)
Air Quality is
Poor
PM2.5 :55.2µg/m³
PM10 :57.2µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Poor air quality mascot

Primary Air Pollutants Delaware (Ohio)

PM2.555µg/m³
PM2.5
Fine particles
PM1057µg/m³
PM10
Coarse particles
SO₂3µg/m³
SO₂
Sulphur dioxide
CO182µg/m³
CO
Carbon monoxide
NO₂9µg/m³
NO₂
Nitrogen dioxide
O₃76µg/m³
O₃
Ozone

Hourly forecast Delaware (Ohio)

Now28°
Clear sky
12:0030°
Clear sky
13:0032°
Clear sky
14:0033°
Clear sky
15:0034°
Clear sky
16:0034°
Clear sky
17:0033°
Mostly clear
18:0033°
Overcast
19:0029°
Overcast
20:0029°
Overcast
21:0027°
Overcast
22:0026°
Overcast
23:0025°
Overcast
00:0024°
Overcast
01:0024°
Overcast
02:0024°
Mostly clear
03:0024°
Mostly clear
04:0023°
Partly cloudy
05:0024°
Overcast
06:0024°
Overcast
07:0024°
Clear sky
08:0025°
Mostly clear
09:0027°
Overcast
10:0027°
Overcast

Health Recommendations for Delaware Residents

Based on current air quality: Poor · AQI 150

Poor
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust

UV Index

1

Low

Safe to be outside. Minimal UV risk.

Wind

5.4 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data Delaware (Ohio)

83
Min. AQIat 10:00 AM on 16th Jul
175
Max. AQIat 8:00 PM on 16th Jul
16-07-2026Time17-07-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

179
Unhealthy22x above Standard
178
Unhealthy21x above Standard
174
Unhealthy20x above Standard
173
Unhealthy19x above Standard
172
Unhealthy19x above Standard
172
Unhealthy19x above Standard
165
Unhealthy16x above Standard
163
Unhealthy16x above Standard
161
Unhealthy15x above Standard
161
Unhealthy15x above Standard
Last Updated: 17 Jul 2026, 14:58

Health Advice For People Living in Delaware

2.5
Cigarettes
per day
Weekly17.5 Cigarettes
Monthly75 Cigarettes

Breathing the air in this location is equivalent to smoking 2.5 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Delaware Current AQI (US)
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Delaware · Current air quality: Poor · AQI 150

Elevated Trigger Risk

Headaches

Risk of Headaches symptoms is Elevated when AQI of Delaware is Poor (101-150).

Common signs

Watch for: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Opt for indoor, air with filtration when the AQI is poor.
  • Increase fluids and rest from digital screens or intense light if you are migraine-prone.
  • If you Use prescribed migraine meds, Keep them accessible.
Don’ts :
  • Don’t do intense outdoor exercise during elevated AQI periods.
  • Do not ignore worsening signs that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

Delaware's Nearby Cities AQI

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Population: 1,321,414
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Population: 431,279
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Population: 540,428
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Population: 390,357
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State: Ohio
Population: 1,264,817
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State: Ohio
Population: 830,639
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State: Ohio
Population: 161,791
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State: Ohio
Population: 228,614
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16.Lake
State: Ohio
Population: 232,603
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State: Ohio
Population: 18,371
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Air Quality FAQs at Delaware, Ohio

The current real-time AQI (US) level in Delaware, Ohio is 150 (Poor). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Delaware, Ohio have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are poor for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.