Robert A. Okamoto

Measurement and chemical characterization of vapor-phase mutagens in diesel exhaust. Final report

Dennis P. H. Hsieh, Norman Y. Kado, Robert A. Okamoto, 1993 .

Chemical and Bioassay Analyses of Diesel and Biodiesel Particulate Matter: Pilot Study

Norman Y. Kado, Robert A. Okamoto, Paul A. Kuzmicky, 1996 .

Oxidation Catalyst Effect on CNG Transit Bus Emissions

Alberto Ayala, Norman Y. Kado, Robert A. Okamoto, 2003 .

Diesel and CNG Heavy-duty Transit Bus Emissions over Multiple Driving Schedules: Regulated Pollutants and Project Overview

Alberto Ayala, Britt A. Holmén, Norman Y. Kado, 2002 .