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EPA's Region 6 Office

Serving: Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations

Air Modeling for Combustion Risk Assessments

The EPA-developed meteorological preprocessor program PCRAMMET requires numerous parameter specifications withing ranges of values identified from reference literature without identifying model sensitivity. In 1997, Region 6 conducted a sensitivity analysis comparing ISCST3 modeled results using the Protocol recommended values to modeled results using the upper and lower range values for identified elements. In additional, Region 6 has developed a checklist to conduct Quality Assurance for the input/output from the ISCST3 air dispersion model.

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