USA air quality index (AQI) and PM2.5 air pollution

11:47, 5月 26 (local time)

Good

Moderate

Unhealthy for sensitive groups

Unhealthy

Very unhealthy

Hazardous

USA AQI Ranking

US AQI

PM2.5

#MAJOR CITYUS AQI

1

189

2

114

3

103

4

96

5

92

6

91

7

Boiling Springs

88

8

88

9

86

10

86

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: COVID-19 Impact On Air Quality In 10 Major Cities

REPORT: COVID-19 Impact On Air Quality In 10 Major Cities

Shutdowns and drastic reductions in economic activity have resulted in major impacts on global air quality. Read our air quality report and learn what you can do to improve air quality even as economic activity picks up again.

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.

How to coexist with pets and allergies

Are you an animal lover and pet allergy sufferer? Read all about pet allergies and how to live happily ever after with all your furry friends.

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.

Our free tools to best protect from USA air pollution

USA air quality can affect your health, make sure to get a proper air pollution protection with our FREE tools

air quality app

USA air quality app

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

air quality website widget

USA air quality website widget

Upgrade your website with free localized air pollution website widget.

air quality browser extension

USA air quality browser extension

Stay aware of the air quality in USA 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