Ohio Nuclear Sites Portsmouth Nuclear Site Centrus/HALEU Depleted Uranium Mangano Health Studies Offsite Contamination Pohlman WKRC Videoclips Davis-Besse Nuclear Power Plant Hydrogen at Davis-Besse Perry Nuclear Power Plant Battelle Memorial Institute Other Sites Nuclear Fuel Uranium: Mining/Milling Uranium: Enrichment/Fuel Fabrication Nuclear vs Climate Health Risks News & Resources Power & Weapons Connection Nuclear Waste New Nuclear Subsidies, Legislation and Regulation Uranium: Enrichment/Fuel Fabrication Attic sampling photo by Dr. Michael Ketterer Offsite Contamination Michael E. Ketterer, PhD, is an analytical chemist and Professor Emeritus of Chemistry and Biochemistry at Northern Arizona University (NAU). He specializes in understanding the sources, transport, and environmental fates of long-lived radioactive contaminants (such as uranium and plutonium) near former and active nuclear sites. He has performed mass spectrometric studies of uranium isotopes in off-site samples near the Portsmouth Nuclear Site (PORTS) which show conclusively that the contamination originated from PORTS. Dr. Ketterer provides expert technical assistance to affected communities. Follow this link to view ONFN’s compilation of DR. MICHAEL KETTERER’S PAPERS, LETTERS, AND PUBLICITY ON OFFSITE CONTAMINATION FROM PORTS.