• Nuclear experiments beginning in 1946 at Bikini Atoll in the Marshall Islands
  • Dozens of ships returned to Hunters Point for decontamination, including 18 at the center of both blasts
  • Impacted sites linked to Operation Crossroads include decontamination buildings and dumping grounds across the street from where a radium deck marker was unearthed in September


Naval Radiological Defense Laboratory

  • Created as part of Operation Crossroads to conduct applied nuclear experiments before ultimately becoming a separate mission in September 1955
  • Used up to 108 radioactive isotopes, 33 of which are listed as "radionuclides of conern" in the radiological assessment
  • "Collected large quantities of fallout material at most U.S. atmospheric weapons tests," according to the assessment