In April 2008, the Political Economy Research Institute (PERI) of the University of Massachusetts issued its second "Toxic 100" list identifying, according to PERI, "the top U.S. air polluters among the world's largest corporations. 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."

Ranking:

- The Toxic 100: The Top Corporate Air Polluters in the U.S. - PERI [main page]
- Top Corporate Air Polluters Named - PERI, 10 Apr 2008 [press release]
- Toxic 100 Air Polluters Index: 2008 report, based on 2005 data

- The Toxic 100: New Report on Polluting Companies Hopes to Empower Communities and Shareholders - Francesca Rheannon, SocialFunds, 28 Apr 2008

Company responses:

The Business & Human Rights Resource Centre invited the top 10 companies on the list to respond.  Their responses follow, with PERI's rejoinders below:

1. Du Pont response
2. Nissan response [DOC]
3. Archer Daniels Midland (ADM) response [DOC]
4. Bayer response [DOC]
5. Dow Chemical response [PDF]
6. Eastman Kodak response [DOC]
7. General Electric (GE) response [DOC]
8. Arcelor Mittal response [DOC]
9. U.S. Steel response [DOC]
10. ExxonMobil response [DOC]

PERI rejoinders:

PERI then sent rejoinders to each of the 10 companies [DOC]