Users Guide for TRIM.Risk Human Health-Probabilistic Application for the Ozone NAAQS Risk Assessment

The Total Risk Integrated Methodology (TRIM) is a time-series modeling system with multimedia capabilities for assessing human health and ecological risks from hazardous and criteria air pollutants.  This document focuses on the application of TRIM.Risk to estimate human health inhalation risks using probabilistic response values.

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.