Data and Tools

Optimized Noise-Reduction Algorithm (ONA) Program Improves Black Carbon Particle Measurements Using Aethalometers

ONA is a data post-processing tool to reduce noise in real-time Aethalometer black carbon data through variable time averaging of the data.

NAMs Training Worksheets

Page housing links to training worksheets.

Program for Assisting the Replacement of Industrial Solvents (PARIS III)

The purpose of this software is to help users find replacements for solvent mixtures that are currently being used in industrial processes, but have dangerous environmental side effects.

AP 42, Fifth Edition, Volume I Chapter 15: Ordnance Detonation

AP 42, Fifth Edition, Volume I Chapter 14: Greenhouse Gas Biogenic Sources

AP 42, Fifth Edition, Volume I Chapter 13: Miscellaneous Sources

AP 42, Fifth Edition, Volume I Chapter 12: Metallurgical Industry

AP 42, Fifth Edition, Volume I
Chapter 12: Metallurgical Industry

AP 42, Fifth Edition, Volume I Chapter 11: Mineral Products Industry

AP 42, Fifth Edition, Volume I Chapter 9: Food and Agricultural Industries

AP 42, Fifth Edition, Volume I Chapter 3: Stationary Internal Combustion Sources

State Inventory and Projection Tool

Project state-level emission estimates through 2030 and utilize an interactive spreadsheet model to help develop GHG emissions inventories for state agencies or other interested groups.

EXPRESS (EXAMS - PRZM Exposure Simulation Shell)

EXPRESS (EXAMS - PRZM Exposure Simulation Shell) software model-designed to facilitate a rapid and consistent assessment of aquatic pesticide exposure on a variety of crops.

The new Guidance in AQUATOX Setup and Application provides a quick start guide to introduce major model features, as well as being a type of "cookbook" to guide basic model setup, calibration, and validation.

History and Generality of Aquatox

Aquatic fate, toxicology, and ecosystem submodels were coupled to “close the loop,” representing both direct and indirect
effects. the model is also a platform to which other environmental stressors may be added for extensive analysis.

AQUATOX 3.2 Installation Guide

Additional details on installation may be found in the aquatox installation guide.

BASINS Download 4.1

The current version of BASINS 4.1 was released in 2013. This page describes the installation requirements for BASINS 4.1.

BASINS Publications

Although BASINS has been in use for the past 10 years, there has been limited modeling guidance on its applications for complex environmental problems, such as modeling impacts of hydro modification on water quantity and quality.

BASINS Case Study

EPA developed a case study document for Cottonwood Creek Watershed, Idaho County, Idaho, to demonstrate the use of BASINS in developing a TMDL.

BASINS Technical Notes

EPA has developed several technical notes that provide in depth information on a specific function in BASINS. Technical notes can be used to answer questions users may have, or to provide additional information on the application of features in BASINS.

BASINS Climate Assessment Tool Tutorials

The BASINS Climate Assessment Tool (CAT) provides a flexible set of capabilities for exploring the potential effects of climate change on streamflow and water quality using different watershed models in BASINS.