AMHERST, Mass. (April 28, 2008) — A university study has reported that Du Pont is the worst polluter in the U.S.
The high rank was achieved on the University of Massachusetts' Toxic 100 index based on emissions of chloroprene from the company's CR unit in Louisville, Ky., which has now closed. However, DuPont's recently opened CR unit in Pontchartrain, La., is now DuPont's top polluting site.
Goodyear comes in at No. 20, with almost 80 percent of offending emissions from the company's tech center in Akron.
Bridgestone is 51 on the list, based on emissions from its industrial rubber products factories in Aurora, Colo.; Noblesville, Ind.; and West Valley City, Utah.
Researchers at UM's Political Economy Research Institute based the Toxic 100 on air releases of hundreds of chemicals from industrial facilities across the U.S.
The rankings take into account the quantity of releases, the relative toxicity of chemicals, nearby populations and transport factors, such as prevailing winds and height of smokestacks.
Users of the Web-based list can view the details behind each company's Toxic Score, including the names and locations of individual facilities owned by the corporation, the specific chemicals emitted by those facilities, their toxicities and their contributions to the company's overall score.