# **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

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# **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