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HGSYSTEM HGSYSTEM is a suite of programs for assessing the dispersion of vapor from gas, liquid or two-phase releases. HGSYSTEM was first developed to model the release of Hydrogen Fluoride and ideal gases, and then extended to include multicomponent mixtures. T http://www.hgsystem.com/hgweb.html Top/Science/Environment/Air_Quality/Air_Dispersion_Modeling/Software
