Dr. John Ondov
Dr. Ondov has 30 years experience in the conduct of multidiciplinary projects for the U.S. DOE Lawrence Livermore National Laboratory(LLNL), Martin Marietta Corporation, and the University of Maryland. While at LLNL, Ondov was regarded as DOE’s top expert on emissions from fossil fueled power plants and advanced fossil-energy technologies. He along with Dr. William Kelly pioneered the development of extremely sensitive enriched rare-earth isotopic tracer techniques for use in source attribution and studies of aerosol particles over transport distances of 100s of km. He has conducted numerous receptor modeling studies using intentional tracers and tracers of opportunity, including studies to determine the sources and fluxes of toxic substances depositing onto surface waters of Lake Michigan and the Chesapeake Bay. Ondov’s group developed hundreds of highly-resolved size spectra for >20 elemental constituents of urban, industrial, and rural environments and successfully used them to apportion PM and elemental constituents by particle size and by source. This work led to development of an improved paradigm for the ambient submicrometer aerosol in which the focus is on primary particles carrying toxic substances emitted from anthropogenic high-temperature combustion sources.

Dr. Michael Zachariah
Dr. Zachariah was Staff Scientist and Group Leader at the National Institute of Standards and Technology for 12 years and a tenured faculty member at the University of Minnesota for 6 years. Dr. Zachariah studies aerosol nanoparticle physics and chemistry, as well as nanostructured materials. The mission of his lab is to understand the role of physical/chemical phenomena in the formation and growth of nanoscale materials. Dr. Zachariah, who received his PhD from UCLA, shares a joint appointment with UM's Department of Mechanical Engineering.