A study now in progress to compare the toxicity of exhaust from diesel- and gasoline-engine vehicles is targeted for release sometime in June. The study, funded by the U.S. Dept. of Energy (DOE) and managed by the National Renewable Energy Laboratory's (NREL) Center for Transportation Technologies and Systems is based on in-use vehicle exhaust samples taken in road tunnels and from dynamometer tests at Southwest Research Institute, San Antonio, Texas. Researchers have determined a way to ...
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