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Real-time Air Quality Index (AQI)

Ashburn, Virginia, United States

Last Updated: 4 minutes ago (Local Time)

Major Air Pollutants

Ashburn

PM2.5's Icon

Particulate Matter(PM2.5)

7µg/m³

PM10's Icon

Particulate Matter(PM10)

15µg/m³

CO's Icon

Carbon Monoxide(CO)

30ppb

SO2's Icon

Sulfur Dioxide(SO2)

0ppb

NO2's Icon

Nitrogen Dioxide(NO2)

4ppb

O3's Icon

Ozone(O3)

29ppb

Trending in United States

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Ashburn

24 Hours
AQI
Ashburn
AQI
.
09-07-2025Time10-07-2025
TimeAshburn
10 PM32
11 PM32
12 AM30
01 AM24
02 AM24
03 AM25
04 AM26
05 AM30
06 AM33
07 AM33
08 AM35
09 AM36
10 AM38
11 AM39
12 PM38
01 PM39
02 PM39
03 PM38
04 PM38
05 PM36
06 PM37
07 PM34
08 PM36
09 PM36
10 PM37
24
Min.at 1:09 AM on 10th Jul
39
Max.at 11:09 AM on 10th Jul

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World Air Quality Report

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Live AQI Ranking

World Most Polluted Cities 2025

Real-time air quality index ranking of cities & countries around the world

World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
City Rankings
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RankMost Polluted CitiesAQIAQI Status

Standard Value

Follow

1.

Shahin Shahr flag

Shahin Shahr, Iran

187
Unhealthy
12xabove Standard

2.

Esfahan flag

Esfahan, Iran

186
Unhealthy
12xabove Standard

3.

Khomeyni Shahr flag

Khomeyni Shahr, Iran

168
Unhealthy
11xabove Standard

4.

Ahvaz flag

Ahvaz, Iran

166
Unhealthy
11xabove Standard

5.

Orkney flag

Orkney, South Africa

166
Unhealthy
11xabove Standard

6.

Mobarakeh flag

Mobarakeh, Iran

165
Unhealthy
11xabove Standard

7.

Taft flag

Taft, Iran

164
Unhealthy
11xabove Standard

8.

Puerto Montt flag

Puerto Montt, Chile

161
Unhealthy
11xabove Standard

9.

Shahr E Qods flag

Shahr E Qods, Iran

160
Unhealthy
11xabove Standard

10.

Shahr E Kord flag

Shahr E Kord, Iran

158
Unhealthy
11xabove Standard

Last Updated: 11 Jul 2025, 03:16 AM

AQI City Rankings

Air Quality Index (AQI) Scale

Know about the category of air quality index (AQI) your ambient air falls in and what it implies.

AQI
PM
Ozone
CO
SO2
NO2

Good(0 to 50)

The air is fresh and free from toxins. Enjoy outdoor activities without any health concerns.

aqi good level.webp

Moderate(51 to 100)

Air quality is acceptable for most, but sensitive individuals might experience mild discomfort.

aqi moderate level.webp

Poor(101 to 150)

Breathing may become slightly uncomfortable, especially for those with respiratory issues.

aqi poor level.webp

Unhealthy(151 to 200)

This air quality is particularly risky for children, pregnant women, and the elderly. Limit outdoor activities.

aqi unhealthy level.webp

Severe(201 to 300)

Prolonged exposure can cause chronic health issues or organ damage. Avoid outdoor activities.

aqi severe level.webp

Hazardous(301+)

Dangerously high pollution levels. Life-threatening health risks with prolonged exposure. Stay indoors and take precautions.

aqi hazardous level.webp
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Indoor Air Quality Monitor
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AQI Data Analytics Solutions

Air quality data monitoring platforms

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Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Air Quality Solutions

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

7 Jul 2025Shakshi
Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

4 Jul 2025Gyane Haobijam
Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

2 Jul 2025Shakshi
Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

1 Jul 2025Shakshi
Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

24 Jun 2025Shakshi
Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

19 Jun 2025Shakshi
AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

19 Jun 2025Gyane Haobijam
Noise Pollution in Ocean: The Silent Threat Beneath the Waves

Noise Pollution in Ocean: The Silent Threat Beneath the Waves

17 Jun 2025Shakshi
Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

10 Jun 2025Shakshi
Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

9 Jun 2025Shakshi

Editor's Pick

AQI.in is India’s leading platform for air quality monitoring, as featured in The Economic Times. Discover our journey from humble beginnings to becoming the nation's sole provider of comprehensive air pollution data and solutions. Learn how we started from scratch and now offer top-tier tools and services to combat air pollution effectively.

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Media Coverage

AQI has been featured in media for its remarkable growth and innovation

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Air Quality Around The World

Real-time air quality monitoring around the world.

AfghanistanAlbaniaAlgeriaAndorraAngolaArgentinaArmeniaAustraliaAustriaAzerbaijanBahrainBangladeshBelarusBelgiumBeninBoliviaBosnia and HerzegovinaBotswanaBrazilBruneiBulgariaBurkina FasoBurmaCabo VerdeCambodiaCameroonCanadaChadChileChinaColombiaCongo KinshasaCosta RicaCote DivoireCroatiaCuracaoCyprusCzechiaDenmarkEcuadorEgyptEl SalvadorEstoniaEthiopiaFinlandFranceFrench GuianaGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuineaHungaryIcelandIndiaIndonesiaIranIraqIrelandIsraelItalyJapanJerseyJordanKazakhstanKenyaKosovoKuwaitKyrgyzstanLaosLatviaLebanonLiberiaLiechtensteinLithuaniaLuxembourgMacedoniaMadagascarMalaysiaMaliMaltaMexicoMoldovaMonacoMongoliaMontenegroMyanmarNamibiaNepalNetherlandsNew CaledoniaNew ZealandNigerNigeriaNorth KoreaNorwayPakistanParaguayPeruPhilippinesPolandPortugalPuerto RicoQatarReunionRomaniaRussiaRwandaSan MarinoSaudi ArabiaSenegalSerbiaSingaporeSlovakiaSloveniaSouth AfricaSouth KoreaSpainSri LankaSudanSwedenSwitzerlandTaiwanTajikistanThailandTogoTrinidad And TobagoTurkeyTurkmenistanUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUzbekistanVenezuelaVietnamZambia
View aqi DataAQIView weather DataWeather
location image
Live AQI
37
Air Quality is
Good
pm10 :  15 µg/m³
PM2.5 :  7 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Ashburn
partly cloudy

26 °C

Partly cloudy
Humidity
Humidity82 %
Wind Speed
Wind Speed5 km/h
UV Index
UV Index0
Last Updated: 4 minutes ago (Local Time)