What are the most commonly used radon-testing methods?
(Back to top) There are two main methods used to test for radon gas and radon decay products. The most popular involves the use of a “passive” device such as an activated charcoal test kit which collects radon gas atoms for counting later in a laboratory or an alpha track device that has a small strip of special plastic that is “marked” when hit by radon’s alpha particles, which will also be counted later in a laboratory. The other main method involves the use of an “active” device called a CRM (continuous radon monitor). These monitors are used by professional radon inspectors for short-term radon testing, (48 hours), during a real estate transaction.
