Total Risk Integrated Methodology (TRIM) Air Pollutants Exposure Model Documentation (TRIM.Expo/APEX, Version 4.3). Volume 2: Technical Support Document

摘要

The Air Pollutants Exposure model (APEX) is part of EPA's overall Total Risk Integrated Methodology (TRIM) model framework (EPA, 1999), in particular the inhalation exposure component (TRIM.ExpoInhalation). TRIM is a time-series modeling system with multimedia capabilities for assessing human health and ecological risks from hazardous and criteria air pollutants; it is being developed to support evaluations with a scientifically sound, flexible, and user-friendly methodology. The TRIM design includes three modules: (1) Environmental Fate, Transport, and Ecological Exposure module (TRIM.FaTE); (2) Human Exposure-Event module (TRIM.Expo); and (3) Risk Characterization module (TRIM.Risk).