### Question
What is the definition of radon?


### Answer
The definition of **radon** is as follows in *15 U.S.C. § 2662*:

> the radioactive gaseous element and its short-lived decay products produced by the disintegration of the element radium occurring in air, water, soil, or other media

#### Citation:
  - *15 U.S.C. § 2662*
  - Heading: **CHAPTER 53-TOXIC SUBSTANCES CONTROL > SUBCHAPTER III-INDOOR RADON ABATEMENT**

