由于需要制定新的和修订后的饮用水法规，美国环境保护局（US Environment Protection Agency）开展了全国无机物和放射性核素调查，以获取有关美国地下水水源饮用水中各种污染物出现情况的信息。本文讨论了与放射性核素有关的结果，并与其他研究的数据进行了比较。其中包括对数据采集、分析和处理的描述。包括7个参考文献、表格、图表。

The need to establish new and revised drinking water regulations led the US Environmental Protection Agency to conduct the National Inorganics and Radionuclides Survey to obtain information on the occurrence of various contaminants in drinking water from groundwater sources in the United States. In this article, the results that relate to radionuclides are discussed and compared with data from other studies. A description of the acquisition, analysis, and processing of the data is included. Includes 7 references, tables, figures.