SESHA 2019 Symposium PDC

Crash Course on Risk Assessment for Semiconductor Industry: Metals, Organic Agents, Nanoparticles

Andrey Korchevskiy
Daniel Hall
Steven Trammell

Chemistry & Industrial Hygiene, Wheat Ridge, CO; BSI EHS Services and Solutions, Austin, TX


“A crisis of regulations” is haunting manufacturers worldwide: governmental standards don’t exist for many workplace and environmental factors, while most of the existing exposure limits are not health-based. Risk assessment becomes a viable alternative to regulatory paradigm, allowing industry professionals to evaluate new and emerging hazards and establish internal occupational exposure limits. This approach follows the “precautionary principle,” while employing the best available scientific information to prioritize risks and ensure occupational and public health improvement. This PDC will take participants for an intensive, hands-on one-day ride exploring how and when semiconductor industry personnel can use advanced risk assessment methods in their practice. The objective of the class is to demonstrate different methods and techniques used for risk assessment purposes. Structural components of the risk assessment paradigm (hazard identification, exposure assessment, dose-response assessment, and risk characterization) will be described from a practical point of view. The participants will learn via class exercises how to obtain & interpret risk metrics, including absolute & relative risk, attributable risk fraction, unit risk, slope factor, and reference concentration and dose.The audience will participate in interactive exercises, including a statistical risk simulation, demonstrating the probabilistic nature of hazards and health outcomes. The class materials will be based on case studies intended to refresh the audience’s knowledge on hazardous agents specific to the industry, including, arsine, phosphine, methylene chloride, hydrofluoric acid (HF), tetramethylammonium hydroxide (TMAH), and engineered nanoparticles. Steve Trammell, PE, CSP, CCPSC, CHMM – Principal Consultant BSI EHS Services and Solutions Austin, TX Steve has 32+ years’ experience in mechanical design engineering, system safety, hazards analysis and risk management within the high technology, aerospace, pharmaceutical, explosives and petrochemical industries. His experience includes development of global risk management programs, manufacturing startup support, compliance and risk-based auditing. Steve is a member of the SESHA Board of Directors (2010-present) and a past President of the organization (2013-2014). He is a member of the NFPA 318 Technical Committee and has co-authored multiple peer-reviewed journal publications focused on risk management. Andrey Korchevskiy, PhD, DABT, CIH Chemistry & Industrial Hygiene, Inc. Wheat Ridge, CO A certified toxicologist and certified industrial hygienist, Andrey is an expert in risk assessment modeling for industrial hygiene and environmental health applications. He arranged and taught best-selling risk assessment classes in the US, UK, Canada, Mexico, Colombia, and other countries. He has over 150 scientific publications in the fields of risk analysis, epidemiology, toxicology, and biostatistics. He is a full member of the Society of Toxicology (SOT), Distinguished Lecturer of AIHA, a recipient of AIHA Outstanding Project Team Award, and AIHA Volunteer Group Service Awards in both 2016 and 2018. Dan Hall, CIH, PE Chemistry & Industrial Hygiene, Inc. Wheat Ridge, CO Dan is a certified industrial hygienist with a decades long experience in engineering controls, statistical data analysis, and computer modeling. He has presented at national conferences on statistical analytical methodologies and computational fluid dynamics (CFD) modeling techniques utilized in retrospective exposure characterization of workers and outdoor contaminant dispersion for risk assessment activities. He is a member of the American Society of Civil Engineers (ASCE), the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), the national and local American Industrial Hygiene Association (AIHA), and is an active member of the national AIHA Engineering Committee.