Mr. Szust is a Managing Consultant and the Office Manager for Trinity?s St. Louis office with more than 10 years of experience in air quality consulting. He has extensive experience in traditional air quality consulting areas including state and federal air permitting, emissions calculations, compliance tracking, reporting, and expert litigation. Mr. Szust?s main areas of expertise include air dispersion modeling and air toxics related matters. He has conducted and managed both short and long-range transport analyses in support of state-level permit applications, PSD permit applications, and National Environmental Policy Act (NEPA) assessments. He also has a continued focus on air toxics related matters that include the preparation of state and federal Health Risk Assessments (HRA) using various protocols and software, including CARB?s Hot Spots Analysis & Reporting Program (HARP), EPA?s Human Health Risk Assessment Protocol (HHRAP), and EPA?s Human Exposure Model (HEM).

Mr. Szust has been the point contact for numerous clients and has served clients in several industries including Portland cement manufacturing, electric utilities, inorganic chemical manufacturing, liquid petroleum refining, silica sand processing, cement board manufacturing, and semi-conductor manufacturing, among others, across numerous states including Arizona, California, Illinois, Minnesota, Missouri, New Mexico, Nevada, Oregon, Utah, and West Virginia. Mr. Szust serves as a national lead for Trinity?s Health Risk Assessment team and is an instructor for several of Trinity?s environmental training courses on Missouri & Illinois Reporting, Advanced Spreadsheet Functionality for Air Quality Compliance, Dispersion Modeling for Managers, Practical Air Dispersion Modeling Workshop, Introduction to Environmental Reporting in Nevada, and Environmental Justice Policies, Tools, and Best Practices.

Mr. Szust earned his B.S. degree in Chemical Biological Engineering from the Massachusetts Institute of Technology.