A research project was conducted by the United States Environmental Protection Agency's (EPA) Superfund remedial program to study radiological assessment models used for contaminated sites. Several models developed by regulatory agencies in different countries are studied to present overview and comparisons. These models are recommended by governmental agencies for radiological assessment of contaminated soil, inside buildings, and outdoor surfaces. The project also addressed the methodological consistency between the EPA and the United Kingdom Environment Agency (UK EA) for radiological and chemical assessment models. The main purpose of this project is to establish a common ground for cooperation between regulatory agencies by facilitating better understanding of each agency's modeling approach and identifying the similarities and differences between these agencies. The project produced five reports that are published at the EPA's website. This paper summarizes the content of each report and presents results of a survey distributed electronically following an EPA webinar about the research projects, including the familiarity of the respondents with these models. All findings were statistically analyzed.

中文翻译：

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受污染土壤、建筑物和室外表面的放射学评估模型研究：概述、比较、与化学模型的相似性、挑战和经验教训。

美国环境保护署 (EPA) 超级基金补救计划开展了一个研究项目，研究用于污染场地的放射评估模型。研究了不同国家监管机构开发的几种模型，以进行概述和比较。政府机构推荐这些模型用于对受污染土壤、建筑物内部和室外表面进行放射学评估。该项目还解决了 EPA 和英国环境署 (UK EA) 之间放射和化学评估模型方法的一致性问题。该项目的主要目的是通过促进更好地理解每个机构的建模方法并确定这些机构之间的异同，为监管机构之间的合作建立共同基础。该项目产生了五份报告，并发布在美国环保局的网站上。本文总结了每份报告的内容，并介绍了在 EPA 关于研究项目的网络研讨会之后以电子方式分发的调查结果，包括受访者对这些模型的熟悉程度。所有发现均进行统计分析。