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| Last Updated:: 01/04/2016

Toxics Release Inventory ( TRI )



The U.S. Environmental Protection Agency's Toxics Release Inventory (or TRI) gives citizens information about toxic releases in and around their communities. With this information citizens can encourage mining companies to reduce their toxic releases and/or agree to more vigorous oversight of their mines.


According to the Emergency Planning and Community Right-to-know Act (EPCRA) established in 1986 and administered by the Environmental Protection Agency (EPA), TRI requires industrial facilities to annually disclose to the public the amount of pollutants they have discharged into the air, water, and land or transferred to other sites for incineration, recycling and disposal.


The TRI allows citizens and communities to know, facility-by-facility, county-by-county, state-by-state and industry-by-industry, where the toxics are, and where they're coming from.


Total toxic released during 1998-2010 because of the metal mining industries, the TRI has shown that it is the largest toxic polluter in the United States. In 2010, the metal mining industry reported releasing 1.6 billion pounds of toxics or 41% of all toxics reported. Metal mining accounted for 96% of all arsenic releases and 92% of all mercury releases.