The science behind heat domes

Parts of Europe are some of the hottest areas across the world right now because of an impressive heat dome that has set up over the region.

Video Explanation

PlayWatch1:11

Today's Air Quality - George Mason, Fairfax, Virginia

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

15.23 µg/m³

3

CO (Carbon Monoxide)

Good

433.33 µg/m³

3

NO2 (Nitrogen Dioxide)

Good

7.46 µg/m³

41

O3 (Ozone)

Good

80.27 µg/m³

21

PM10 (Particulate matter less than 10 microns)

Good

22.91 µg/m³

1

SO2 (Sulfur Dioxide)

Good

1 µg/m³