# **Today's Air Quality** - Herndon, 20170, Virginia, United States

63

Moderate

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

### Primary Pollutant:

PM2.5 (Particulate matter less than 2.5 microns)

63

PM2.5 (Particulate matter less than 2.5 microns)

Moderate

18.19 µg/m3

3

CO (Carbon Monoxide)

Good

363.33 µg/m3

4

NO2 (Nitrogen Dioxide)

Good

7.64 µg/m3

37

O3 (Ozone)

Good

77.15 µg/m3

19

PM10 (Particulate matter less than 10 microns)

Good

21.51 µg/m3

1

SO2 (Sulphur Dioxide)

Good

1.16 µg/m3