United States Air Quality Index (AQI) and Air Pollution

The United States Air Quality Index (AQI) today is 30 (Good). The dominant pollutant is O3. Other measured pollutants include NO₂ (0.9 ppb), SO₂ (0.1 ppb), CO (0.131 ppm), O₃ (0.032 ppm), PM10 (3.5µg/m³), PM2.5 (2.2 µg/m³), contributing to air pollution.

Live AQI

30(US-AQI)

Air Quality is

Good

Main Pollutant: O3

Last updated: just now

Good
Moderate
Poor
Unhealthy
Severe
Hazardous
0
50
100
150
200
300301+
Current Air Quality Index (AQI) undefined
21°C
27%
8 Km/h

Major Pollutants

PM2.5
Good

2.2 µg/m³

PM10
Good

3.5 µg/m³

O₃
Good

0.032 ppm

CO
Good

0.131 ppm

NO₂
Good

0.9 ppb

SO₂
Good

0.1 ppb

Explore State-wise Air Quality Index (AQI) in the United States

Frequently Asked Questions about Air Quality United States