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Toxic 100 Index

Toxic 100 Index
by political economy research institute

waste management


  • The index relies on the U.S. Environmental Protection Agency's Risk Screening Environmental Indicators (RSEI) project.
  • The starting point for the RSEI is the EPA's Toxics Release Inventory (TRI), which reports on releases of toxic chemicals at facilities across the United States.
  • The Toxic 100 index identifies the top U.S. air polluters among the world's largest corporations.
  • TRI data are reported simply in terms of total pounds of chemicals. The RSEI data factors in relative toxicities of TRI chemicals. Pound-for-pound, some chemicals are up to ten million times more hazardous than others.
  • The PERI research team matches RSEI data, reported on a facility-by-facility basis, with information on corporate ownership of these facilities. PERI develops a picture of overall corporate performance that is essential to engaging corporate leaders in finding ways to reduce toxic pollution.
  • The RSEI data account for exposures and numbers of people impacted by the release of toxic chemicals based on modeling designed by the EPA.

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