Answer to Question #247 Submitted to "Ask the Experts"

Q

Are you aware of naturally occurring radioactive materials or elevated radiation levels in fire brick? Are there any special disposal requirements for NORM such as fire brick?

A

There are several reports available which describe naturally occurring radioactive materials (NORM) in fire brick. The Conference of Radiation Control Program Directors (CRCPD) Report #3, "Report of the E-4 Committee on NORM Contamination and Decontamination/Decommissioning," is an excellent reference document that describes potential NORM issues in various materials and industries including fire brick. The report describes how NORM is concentrated and deposited and provides estimates of possible radiation exposures. It also discusses appropriate control and disposal methods applicable to fire brick as well as many other forms of NORM contaminants. The CRCPD also has published "Suggested State Regulations for the Control of Technologically Enhanced Naturally Occurring Radioactive Material (TENORM)." This document provides more detail about the regulatory aspects (including disposal) of such material. These documents can be obtained from the Office of the Executive Director of the CRCPD in Frankfort, Kentucky, by calling 502-227-4543 or by emailing Bruce Hirschler at bhirschler@crcpd.org.