Data and Tools
-
Methodology Document for RSEI Model Version 2.1.2, August 2004
This methodology document accompanies version 2.1.2 of the Risk-Screening Environmental Indicators model.
-
RSEI Version 2.1 Distribution Package
Information distributed to users in technical release of RSEI Version 2.1
-
9 - Evaluation and Refining Fish Consumption Advisory As Needed
Information related to Develop Risk Communication Programs for Fish and Shellfish Consumption Advisories - 9 - Evaluation and Refining Fish Consumption Advisory As Needed
-
Estimate of Stack Heights and Exit Gas Velocities for TRI Facilities in OPPT's Risk-Screening Environmental Indicators Model, June 1999
This document describes the methods used to estimate stack heights and exit gas velocities for TRI facilities
-
TRI Relative Risk-Based Environmental Indicators Methodology, June 1997
This report explains how the proposed Indicators are constructed, and includes discussions of the conceptual methodology, data sources, and the computational approach.
-
User's Manual for OPPT's Risk-Screening Environmental Indicators Model: Version 1.0, November 1999
This manual describes the Indicator methodology, operations of the computer model and the step-by-step processes to perform them, and pre-run queries available with the model.
-
User's Manual for RSEI Model Version 2.1, December 2002
This manual accompanies version 2.1 of the Risk-Screening Environmental Indicators model.
-
User's Manual for RSEI Model Version 2.1.2, August 2004
This manual accompanies version 2.1.2 of the Risk-Screening Environmental Indicators model.
-
User's Manual for RSEI Model Version 2.1.5, September 2007
This manual accompanies version 2.1.5 of the Risk-Screening Environmental Indicators model
-
Analyses Performed for the Risk-Screening Environmental Indicators
Describes analyses performed as part of the Risk-Screening Environmental Indicators screening tool
-
TRI Relative Risk-Based Environmental Indicators: Summary of Comments Received on the Draft 1992 Methodology and Responses to Comment, May 1997
This document contains general comments on the original Indicators methodology, the toxicity weighting, the chronic ecological indicator and other issues. OPPT's responses and proposed changes are also discussed.
-
Regional SDAMs FAQs
Answers to some of the most frequently asked questions about Regional SDAMs and how to apply them in the field are listed.
-
Learn about Regional SDAMs
Streamflow Duration Assessment Methods are rapid field methods using hydrological, geomorphological, and biological indicators, observable in one site visit, to classify streamflow duration as perennial, intermittent, or ephemeral at the stream reach scale
-
TracMyAir
TracMyAir is a web application air pollution exposure model that estimates a person’s daily exposure to outdoor-generated fine particulate matter (PM2.5) and ozone. The TracMyAir web app is an efficient and cost-effective tool for researchers.
-
Greenhouse Gas Equivalencies Calculator - Revision History
Describes the updates made to the Greenhouse Gas Equivalencies Calculator since it was first posted on EPA’s website in February 2008.
-
Air Toxics Monitoring National Program Reports
This page contains links to associated documents linked to on main Air Toxics monitoring page.
-
MOFAT: A Two-Dimensional Finite Element Program for Multiphase Flow and Multicomponent Transport
MOFAT is a two-dimensional, finite element model for simulating coupled multiphase flow and multi-component transport in planar or radically symmetric vertical sections.
-
State Designations for 2008 Lead Standards
Tables displaying States and areas of non-attainment of 2008 Lead Standard.
-
Hydrocarbon Spill Screening Model (HSSM) en Español
HSSM simula el flujo de la fase LNAPL (líquidos livianos en fase no acuosa) y el transporte de un componente químico por estos líquidos desde la superficie hasta las napas freáticas.
-
Structured Decision Making: Increasing Community Resilience
This Structured Decision Making StoryMap explains the six-step SDM process and provides guidance for its use. Each section of the StoryMap provides details about a different step of the SDM process, supported by case study examples from across the U.S.