--- title: "1945 Edgewood Arsenal explosion" chunk: 1/1 source: "https://en.wikipedia.org/wiki/1945_Edgewood_Arsenal_explosion" category: "reference" tags: "science, encyclopedia" date_saved: "2026-05-05T11:41:00.476898+00:00" instance: "kb-cron" --- The 1945 Edgewood Arsenal explosion killed twelve munitions workers and injured more than fifty on May 25, 1945. Building 509 at Edgewood Arsenal in Harford County, Maryland was a production facility for the assembly of phosphorus igniter assemblies for incendiary bombs, employing a female staff of about 135 assemblers. Nine workers, of whom eight were African-American, were killed in the initial blast, and three more died of their injuries. == References ==