HEI Finds Diesel Studies Useful For Risk Analysis But Uncertainties Linger

The Health Effects Institute (HEI) research group in a new report says that a pair of epidemiological studies of truckers and miners exposed to diesel engine exhaust could be useful for quantitative risk assessments, but says there are lingering uncertainties in the studies that will have to be addressed in any risk analysis. The report -- requested by EPA and released Nov. 24 -- also cautions that future assessments of the risks to public health from diesel exhaust emissions “would...