Using EPA’s Regional Screening Levels Calculator Tool

The webinar included the following presentation:

Fredrick Dolislager, University of Tennessee and Oak Ridge National Laboratory [PDF].

The webinar provided an introduction and demonstration of the RSL calculator tool and covered:

• Background about the RSLs including uses and limitations
• The hierarchies of toxicity values and chemical parameters and their sources
• Examples of default runs
• Demonstration of the site-specific and user-provided modes
• Discussion of the “problem chemicals” that seem to break the rules
• Supporting documentation to help the user quickly find answers to questions
• How to have your opinions heard during the semi-annual RSL update process