Why should radon measurement reports be retained for a minimum duration?

Retaining radon measurement reports for a minimum duration is crucial because the harmful effects of radiation exposure, including those from radon, may not become apparent for several years, often taking decades to manifest. This characteristic of ionizing radiation necessitates that long-term records are kept, especially since radon is a known carcinogen linked to lung cancer.

Having a history of radon levels can be important not just for current health assessments but also for future medical reference, should an individual develop health issues that may be related to past radon exposure. This practice ensures that there is documentation available should health concerns arise later, allowing for proper evaluations and necessary health studies.

The other options exist within the context of radon measurement but do not align directly with the importance of retaining measurement reports over time concerning health implications. For example, while reports can be useful in real estate transactions, the focus of retention is primarily linked to the long-term health risks associated with radon exposure.