实验室对两种工艺进行了研究，以确定其去除家庭供水中氡的效率。颗粒活性炭（GAC）吸附被发现是非常有效的，因为吸附衰减稳定状态很快建立，并持续多年。由于床层置换不是实际目的的一个因素，GAC是最具成本效益的氡去除工艺。然而，随着氡的衰变，GAC床层会吸附氡子体，并成为伽马辐射源。这一问题被认为在绝大多数潜在应用中都是可控的。研究发现，扩散气泡曝气与GAC一样有效，实际去除率大于99%。尽管比GAC成本更高，但曝气不存在伽马放射性累积的问题。包括24个参考文献、表格和图表。

Two processes were investigated in the laboratory to determine their efficiency for removing radon from household water supplies. Granular activated carbon (GAC) adsorption was found to be extremely effective as a result of an adsorption-decay steady state that is established quickly and continues for years. Because bed replacement is not a factor for practical purposes, GAC is the most cost-effective process for radon removal. The GAC bed, however, adsorbs radon progeny as the radon decays, and it becomes a source of gamma radiation. This problem is believed to be manageable for the vast majority of potential applications. Diffused bubble aeration was found to be as effective as GAC, with removals of greater than 99 percent being practical. Although more costly than GAC, aeration does not have the problem of gamma activity buildup. Includes 24 references, table, figures.