...[Du Pont] tops the list of most toxic polluting corporations operating in the US, according to a just-released report from the Political Economy Research Institute (PERI) at the University of Massachusetts. The Toxic 100 index updates a previous version released in 2005. It’s got plenty of company:...Nissan, Archer Daniels Midland, Bayer, and Dow Chemical... The goal of The Toxic 100 is to give stakeholders “right-to-know” (RTK) information needed to evaluate risks [includes statements by Du Pont, Nissan; also refers to Angus Chemical (part of Dow)]