Ph.D., UCLA, 1997 Professor Ehrman joined the Clark School and Chemical and Biomolecular Engineering (ChBE) faculty in 1998, and later became an affiliate faculty member in both the Chemical Physics Program and the Graduate Program in Bioengineering. Dr. Ehrman has developed a research program focusing on formation, characterization, and processing of dry particles (aerosols); emissions, transport, and fate of air pollution; and research at the intersection of aerosol science, medicine, and public health.

Li-ion batteries, electric energy storage, fuel cells, electroanalytical technologies, nanostructured materials.