This document (EPA402-R-92-003, May 1993), is a guidance document.
The objective of this document is to provide information, recommendations and technological guidance for anyone providing measurement services using 15 radon and radon decay product measurement methods. The EPA has evaluated these techniques and found them to be satisfactory. However, the Agency has not conducted large-scale field tests using the unfiltered track detection technique, and an interim protocol has been prepared with the assistance of researchers who have field experience with this method. As the EPA and others acquire more experience with this interim technique, the guidelines may be revised.You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.