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Map and Analyze Toxic Release Inventory Data with TRI.NET


Note: This is an excellent compliment to EPA's Toxics Release Inventory-Chemical Hazard Information Profiles Tool.

TRI.NET ("T-R-I-dot-net") is a new application developed by EPA to help you analyze Toxics Release Inventory (TRI) information. This application is capable of easily and quickly performing complex queries to help you understand TRI information. It is especially useful for analysts who need a highly interactive environment in order to refine their queries and analyses in an efficient and productive way. TRI.NET makes heavy use of mashups using the latest mapping technologies to help visualize where TRI releases are occurring.


TRI.NET has a number of powerful features that can enhance TRI query results. These features include:

  • Maps - You can map facilities in your results using Google Maps, Google Earth, or Virtual Earth.
  • My TRI Neighborhood - You can limit your results to facilities located within a specified distance of an address.
  • Drill Down - You can quickly retrieve additional details about a row in your results.
  • Advanced Trends - You can quickly view year-to-year changes to spot trends and isolate changes.
  • EPA Reports - You can find reports for the facilities in your results in other EPA data systems.
  • Data Layers - Additional data layers allow TRI data to be analyzed with respect to other factors such as Environmental Justice, Chemical Toxicity, and Tribal and U.S. Mexico Border geographies.

The User's Guide provides detailed instructions on how to use these features. Guidance

Several resources are available to help you learn to use TRI.NET:

  • The Quick Start guide gives brief instructions that will familiarize you with the tool's interface.
  • The User's Guide provides detailed instructions on how to use each feature of TRI.NET.
  • The Tutorial presents examples of analyses that can be done using TRI.NET, and provides step-by-step instructions for completing the analyses.

TRI.NET is distributed with the latest year of TRI data. TRI data for years since 1988 are also available for download.


EPA does not endorse any external software that TRI.NET may invoke as services. All trademarks referenced are those of their respective owners, and are not endorsed by EPA.

Visit the TRI.Net Website

Note: This is an excellent compliment to EPA's Toxics Release Inventory-Chemical Hazard Information Profiles Tool.

Didn't find what you are looking for? We've been online since 1996 and have created 1000's of pages. Search below and you may find just what you are looking for.

Michael R. Meuser
Data Research & GIS Specialist is an independent firm specializing in GIS project development and data research. We created the first U.S. based interactive toxic chemical facility maps on the internet in 1996 and we have been online ever since. Learn more about us and our services.

Have a project in mind? If you have data, GIS project or custom shapefile needs contact Mike.

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