AQI

District of Columbia Air Quality Index & Realtime Air Pollution

Live AQI
30(AQI-US)
Air Quality is
Good
PM2.5 :7.3µg/m³
PM10 :7.6µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Good air quality mascot

Primary Air Pollutants District of Columbia

PM2.57µg/m³
PM2.5
Fine particles
PM108µg/m³
PM10
Coarse particles
SO₂1µg/m³
SO₂
Sulphur dioxide
CO169µg/m³
CO
Carbon monoxide
NO₂5µg/m³
NO₂
Nitrogen dioxide
O₃97µg/m³
O₃
Ozone

Hourly forecast District of Columbia

Now29°
Overcast
19:0027°
Light drizzle
20:0027°
Light drizzle
21:0026°
Light drizzle
22:0025°
Moderate rain showers
23:0024°
Heavy rain
00:0024°
Moderate rain showers
01:0023°
Light drizzle
02:0023°
Light drizzle
03:0023°
Overcast
04:0023°
Overcast
05:0023°
Clear sky
06:0023°
Clear sky
07:0024°
Clear sky
08:0025°
Clear sky
09:0026°
Clear sky
10:0027°
Partly cloudy
11:0027°
Overcast
12:0028°
Partly cloudy
13:0028°
Clear sky
14:0029°
Clear sky
15:0030°
Clear sky
16:0029°
Clear sky
17:0029°
Clear sky

Health Recommendations for District of Columbia Residents

Based on current air quality: Good · AQI 30

Good
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable

UV Index

1.05

Low

Safe to be outside. Minimal UV risk.

Wind

17.7 km/h

Moderate wind — noticeable and steady.

AQI Graph

Historical AQI Data District of Columbia

30
Min. AQIat 6:00 PM on 21st Jul
83
Max. AQIat 7:00 PM on 20th Jul
20-07-2026Time21-07-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

Last Updated: 21 Jul 2026, 15:01

Health Advice For People Living in District of Columbia

0.3
Cigarettes
per day
Weekly2.1 Cigarettes
Monthly9 Cigarettes

Breathing the air in this location is equivalent to smoking 0.3 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 District of Columbia Current AQI (US)
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

District of Columbia · Current air quality: Good · AQI 30

Low Trigger Risk

Headaches

Risk of Headaches symptoms is Low when AQI of District of Columbia is Good (0-50).

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.

District of Columbia's Major Cities AQI

State: District of Columbia
Population: 689,545
Check AQI

Air Quality FAQs at District of Columbia

The current real-time AQI (US) level in District of Columbia is 30 (Good). 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 District of Columbia have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

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