Can a Radon test be placed on a natural stone surface during testing?

Placing a radon test on a natural stone surface is not advisable due to the potential for gamma radiation interference. Natural stones, especially those that are radioactive like granite, can emit gamma rays, which might skew the results of the radon measurement. Radon testing aims to determine the concentration of radon gas in the air, and any additional radiation from surfaces could lead to inaccuracies, misinterpretation of the radon levels, and ultimately lead to faulty conclusions or recommendations regarding radon safety in the home or building.

This reasoning supports why it is crucial to adhere to specified placement guidelines for radon testing equipment, which emphasize using surfaces free from contamination and interference to obtain reliable and valid results.