TRI (Toxic Release Inventory) tracks the management of certain toxic chemicals that may pose a threat to human health and the environment. U.S. facilities in different industry sectors must report annually how much of each chemical is released to the environment and/or managed through recycling, energy recovery and treatment. (A "release" of a chemical means that it is emitted to the air or water, or placed in some type of land disposal.)

The information submitted by facilities is compiled in the Toxics Release Inventory by the Environmental Protection Agency (EPA), which is solely responsible for the content and methodology. TRI helps support informed decision-making by industry, government, non-governmental organizations and the public. For more information visit: Toxic Release Inventory (TRI) Program website provided by the EPA. Click on a county to see its statistics.

The website is best viewed using web browsers, Firefox or Google Chrome.

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