Integration of EPA Guidelines Air Quality Models with Human Exposure/Risk Estimation Proceduresby George J. Schewe, PEI Associates Inc, Cincinnati, OH, USA,
Joseph Carvitti, PEI Associates Inc, Cincinnati, OH, USA,
Joseph Velten, PEI Associates Inc, Cincinnati, OH, USA,
Abstract: Techniques, based on dispersion models which are currently available, for performing population and maximum individual exposure and risk assessments due to ambient air emissions are described. The techniques integrate the use of Environmental Protection Agency Guideline recommended dispersion models with population models. The focus is to show the integrated use of long-term dispersion models with population data to estimate lifetime risk for a collective population exposure. The use of two Guideline Models is described in this paper: the ISCLT Model and the LONGZ Model. Model results are shown with outputs detailing quantitative estimates of unit risk, concentration, number of people, exposure, lifetime incidence, annual incidence, repeat intervals, and source contributions.
Subject Headings: Air quality | Health hazards | Risk management | Data processing | Human factors | Model analysis
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