The Environmental Protection Agency concluded Sept. 3 that long-term inhalation of diesel engine exhaust “is likely to pose a lung cancer hazard to humans, as well as damage the lung in other ways depending on exposure.” News services including the Associated Press said the EPA finding, after a decade of study, was expected to support the government’s push to require cleaner-burning truck engines and ultra-low-sulfur diesel fuel this year and through 2007. The reports said environmental groups had been concerned the Bush administration might post-pone some diesel regulations, as truck makers say their orders have been falling for vehicles equipped with lower-emission engines required as of Oct. 1. The EPA’s 651-page Health Assess-ment Document for Diesel Exhaust said its conclusions were based on both animal tests and occupational exposure to exhaust from diesel engines built before the mid-1990s, and that exhaust particulates have been declining in recent years.

Originally posted on Fleet Financials