Washington, D.C. air quality index (AQI) and PM2.5 air pollution

07:14, Apr 7 (local time)

Good

Moderate

Unhealthy for sensitive groups

Unhealthy

Very unhealthy

Hazardous

Washington, D.C. AQI Ranking

US AQI

PM2.5

#MAJOR CITYUS AQI

1

41

2

35

SEE WORLD AQI RANKING

Most polluted cities

See a ranking of 2019’s most polluted cities.

Most polluted countries

See a ranking of 2019’s most polluted countries.

REPORT: Over 90% of global population breathes dangerously polluted air

REPORT: Over 90% of global population breathes dangerously polluted air

New air quality data for 2019, compiled by IQAir, highlights the impact of climate change and urbanization on global PM2.5 air pollution. Learn more.

World’s Largest Platform for Air Quality Data launched at Tenth World Urban Forum

The United Nations Environment Programme (UNEP), together with UN-Habitat and IQAir, a Swiss air quality technology company, today launched the world’s largest air quality data platform. Learn more.

IQAir supports hospitals treating ongoing coronavirus outbreak

A deadly coronavirus outbreak threatens the lives of millions around the world. IQAir has stepped in to help hospitals treating those infected by the virus. Learn more.

India’s air pollution problem has become a voting issue - finally!

As major political parties vie for position in India’s upcoming election, air pollution has emerged as an important topic in party manifestos, for the first time in the country’s history.

Washington, D.C. air pollution by cities

Chevy Chase Washington

Our free tools to best protect from Washington, D.C. air pollution

Washington, D.C. air quality can affect your health, make sure to get a proper air pollution protection with our FREE tools

air quality app

Washington, D.C. air quality app

Get AirVisual, the world's leading air quality app to track the air pollution around you, accurately.

air quality website widget

Washington, D.C. air quality website widget

Upgrade your website with free localized air pollution website widget.

air quality browser extension

Washington, D.C. air quality browser extension

Stay aware of the air quality in Washington, D.C. thanks to our browser extension.

air pollution API

USA air pollution API

Access AirVisual's extensive air quality database to create your own applications.

Track your air quality anywhere you are

Download the app

Link to download AirVisual app on App Store

Link to download AirVisual app on Google Play

Link to download AirVisual app on Android