Radium: Miracle. Medicine. Poison.Episode 132:12
The Poison That Stayed in Their Bones
The painters' internal contamination becomes the evidence base for modern radiation limits and wartime industrial safety.
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Transcript
Radium could enter the body through inhalation or swallowing and travel especially to the bones.
Marie and Pierre Curie discovered radium in 1898, and the market became infatuated.
Radium entered medicine, beauty products, paint, cocktails, and more glowing consumer goods.
In 1913, Sabin von Sochocky mixed radium-226 with zinc sulfide to make fluorescent paint.
The paint supplied luminous dials and signs for military ships and aircraft during World War I.
Radium dial painters were primarily women; earlier, painters used lips to give brushes a fine point.
This habit made workers swallow tiny amounts of radium paint, risking repeated internal exposure.
Today’s epidemiological cohort has 3,276 painters, handlers, chemists, and ancillary workers.
Nearly half the cohort was hired before 1930, when placing brushes in mouths stopped.
In January 1923, early written suspicion tied radium exposure to occupational disease.
A 1923 public report documented jaw osteomyelitis in a young luminous-dial painter.
A Harvard report written June 1924, published in 1925, linked exposure to blood changes and jaw necrosis.
Elizabeth Hughes later became lead scientist in the 1928 trial over painters’ illnesses.
Elizabeth Hughes told the New Jersey Chancery Court radium physics, chemistry, and measurements.
By 1923, complaints and lawsuits proliferated, and most dial painters got no company compensation.
Five women reached the most famous settlement in June 1928.
The dial-painter tragedy influenced industrial safety standards, including Manhattan Project measures.
A workplace tragedy became a long investigation into contamination inside the body.
Where it leaves off
The radium outlived the factories so completely that decades later even the dial-painter case files were radioactive.
Next: Episode 14, The Case Files That Still Gave Off Radiation
Sources
- US EPA REGION 6nrc.govprimary
- Introduction - Radium: Topics in Chronicling America - Research Guides at Library of Congressguides.loc.govsecondary
- The National Bureau of Standards and the Radium Dial Painters - PMCpmc.ncbi.nlm.nih.govsecondary
- Radium dial workers: back to the future - PMCpmc.ncbi.nlm.nih.govsecondary
- The Radium Girls at the National Archives – The Text Messagetext-message.blogs.archives.govsecondary
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