Health and Safety Implications of Diesel Locomotive Emissions

A review of the published literature was made to determine whether there are health and/or safety effects of long-term exposure to low concentrations of diesel emissions within the ranges reported in actual railroad operations. No consistent evidence was found linking low concentrations of diesel emissions to long-term health effects or short-term respiratory function. Evidence was found linking emissions to eye irritation. Interviews with union officials and operating crews, letters from union members, union file material, and miscellaneous locomotive and caboose inspection reports pointed to the conclusion that diesel emissions are not a widespread or frequent problem in the railroad environment. There may be short-term, infrequent occurences of burning eyes, headache, and nausea, but any safety consequences of such symptoms could not be determined. (Author)