New study examines compromised test conditions and fraudulent data on PCB products in the 1970s

Chronic toxicity tests conducted by Industrial Bio-Test Laboratories (IBT) on behalf of its client Monsanto Corporation revealed information on certain products of the tobacco, asbestos, and lead industries that were found to be toxic. However, the companies were not forthcoming about what they knew about the dangers of these products. This ultimately led to the indictment and conviction of employees of IBT and the Monsanto Corporation.