With its action to reclassify diesel exhaust as a known carcinogen, the World Health Organization has brought renewed interest to the subject of diesel particulate matter (DPM) and worker safety. Previously listed as a probable carcinogen since 1988, WHO's International Agency for Research on Cancer (IARC) changed the classification in June 2012.
"Governments and other decision-makers have a valuable evidence-base on which to consider environmental standards for diesel exhaust emissions," the agency said in announcing the move. IARC Director Dr. Christopher Wild added, "Today's conclusion sends a strong signal that public health action
