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page title goes here Risk Assessment

RVISL What's New

Radon Vapor
Intrusion
Screening Levels
(RVISLs)

The What's New section keeps users informed of changes to: toxicity values, exposure parameters, radon-specific parameters, equation formats, and any other changes to the RVISL calculator. Please check this site frequently to be advised of any recent changes.

January 2022

  • Dose calculations done in site-specific/user-provided mode for Rn-222 were corrected to include Po-218 contribution which was inadvertently omitted.