Frequent Questions

What is a Derived Concentration Guideline Level (DCGL)?

The Derived Concentration Guideline Level (DCGL) is a radionuclide-specific surface or volume residual radioactivity level that is related to a concentration or dose or risk criterion. The regulator usually determines this criterion.

The DCGLW is a reference criterion, or radioactivity level for residual radioactivity evenly distributed over a large area.

The DCGLEMC ("EMC" stands for elevated measurement exposure) is used when small areas of elevated radioactivity exist within larger areas.

See, Chapter 2: Overview of the Radiation Survey and Site Investigation Process and Glossary on the MARSSIM Manual download page.


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