Question: What kind of substance does Radium Girls and United States Radium Corporation have in common?

full_context: Document 1: Radium Dial Company: The Radium Dial Company, was one of a few now defunct United States companies along with the United States Radium Corporation, involved in the painting of clocks, watches and other instrument dials using radioluminescent paint containing radium. The resulting dials are now collectively known as radium dials. The luminous paint used on the dials contained a mixture of phosphorus and radium, a product that the Radium Dial Company named "Luna". However, unlike the US Radium Corporation, Radium Dial Company was specifically set up to only paint dials, no other radium processing took place at the premises.
Document 2: F. Weber &amp; Company, Inc.: F. Weber Company, Inc. is an American manufacturer and supplier of artists' materials. Established in 1853 in Philadelphia, Pennsylvania, the F. Weber Company, Inc. is the oldest and one of the largest manufacturers of art materials in the United States. The company has been known for quality and innovation throughout their history, for example in the late 19th and early 20th centuries—the golden years of the prestigious World Fair—F. Weber & Co. frequently won gold medals for its fine quality products. Exhibitions included: 1873 Vienna; 1876 Centennial Exposition, Philadelphia; 1893 Columbian Exposition, Chicago; 1903 Louisiana Purchase Exposition, St. Louis; 1915 Panama-Pacific Exposition, San Francisco; and 1926 Sesqui-Centennial Exposition, Philadelphia. Following the death of Fredrick W. Weber Sr. in 1919, his two sons Fred W. Weber and Ernest Weber had the company incorporated and renamed it F. Weber Co., Inc. Fred W. Weber was a successful artist, chemist, inventor, and businessman, he was responsible for much of the innovation in product development from taking over in 1919 to his retirement in 1967. With his long list of innovations, a majority of which decreased the toxicity of necessary painting supplies, Fred W. Weber elevated the company to further prominence in the US art supplies market. His expertise in the arts as well as science along with the publication of his first book "Artists Pigments" (Van Nostrand 1923) made him a desirable lecturer on the topic of art. He provided advice to many celebrated 20th century artists, including: Thomas Hart Benton, Dean Cornwell, Arthur Dove, Peter Hurd, Norman Rockwell, NC Wyeth, and Andrew Wyeth. At this time the company had its factory and headquarters in Philadelphia, Pennsylvania, and retail locations in Philadelphia, Baltimore, and St. Louis. The company was bought by Visual Art Industries of Brooklyn, NY in 1980. Honoring the Weber family, the name was not removed from the company. The company is now officially the Martin F. Weber Co. and still produces a variety of art supplies, including the original non-toxic white color "Permalba" formulated by Fred W. Weber himself in 1921. The modern company is also known for its artists signature kits designed for revered television artists such as Jon Gnagy, Bob Ross, Susan Scheme, Robert Wyland and Bruce Blitz.
Document 3: Exide lead contamination: The Exide lead contamination, in southeast Los Angeles County, California, United States, came from a battery recycling plant that emitted lead, arsenic and other dangerous pollutants over decades that contaminated as many as 10,000 homes in half a dozen working-class, Latino communities near the plant. Exide Technologies, owner of the lead-acid battery smelter located in Vernon, agreed in 2015 to close the facility while the massive cleanup of the contaminated soil will take years and cost hundreds of millions of dollars. The residents have expressed outrage over the failure of state regulators to act as the plant was allowed to operate without a full permit while documented violations were occurring. The Department of Toxic Substances Control, which allowed the plant to operate, is in charge of the cleanup and is finding that the many residents do not trust them. The residents must give them permission to test the soil around their home yet many feel betrayed by this government agency.
Document 4: United States Radium Corporation: The United States Radium Corporation was a company, most notorious for its operations between the years 1917 to 1926 in Orange, New Jersey, in the United States that led to stronger worker protection laws. After initial success in developing a glow-in-the-dark radioactive paint, the company was subject to several lawsuits in the late 1920s in the wake of severe illnesses and deaths of workers (the Radium Girls) who had ingested radioactive material. The workers had been told that the paint was harmless. During World War I and World War II, the company produced luminous watches and gauges for the United States Army for use by soldiers.
Document 5: Undark: Undark was a trade name for luminous paint made with a mixture of radioactive radium and zinc sulfide, as produced by the U.S. Radium Corporation between 1917 and 1938. It was used primarily in watch and clock dials. The people working in the industry who applied the radioactive paint became known as the Radium Girls, because many of them became ill and some died from exposure to the radiation emitted by the radium contained within the product. The product was the direct cause of Radium jaw in the dial painters. Undark was also available as a kit for general consumer use and marketed as glow-in-the-dark paint.
Document 6: Standard Chemical Company: The now defunct Standard Chemical Company (SCC) of Canonsburg, Pennsylvania, was the first successful commercial producer of radium. SCC operated the radium refining mill from 1911 to 1922 on a 19-acre (77,000 m2) plot of land. The company supplied radium to the United States Radium Corporation for use in their watch dials.
Document 7: Radium Girls: The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self-luminous paint. Painting was done by women at three different sites in the United States, and the term now applies to the women working at the facilities. The first, United States Radium factory in Orange, New Jersey, beginning around 1917, at Ottawa, Illinois, beginning in the early 1920s, and a third facility in Waterbury, Connecticut.
Document 8: Weldon Spring Ordnance Works: Weldon Spring Ordnance Works (WSOW) was a 17323 acre U.S. Government-owned, contractor-operated (GOCO) facility in St. Charles County, Missouri, 55 km west of St. Louis. The site was originally operated by the Atlas Powder Company during World War II from 1941 to 1945 to produce explosives. The Atomic Energy Commission acquired part of the property in 1955, and Mallinckrodt, Inc. processed uranium ore from 1957 to 1966 under contract. The site has been divided into several parcels, and ownership has transferred over the years. Two portions of the original WSOW property are now Superfund sites that require substantial cleanup efforts. The environmental remediation of the WSOW site is currently designated as a major project of the Defense Environmental Restoration Program of the United States Department of Defense. Part of the original property is still used by the Army Reserve as the Weldon Spring Training Area.
Document 9: James Acord: James Leroy Acord (19 October 1944 – 9 January 2011) was an artist who worked directly with radioactive materials. He attempted to create sculpture and events that probed the history of nuclear engineering and asked questions about the long-term storage of nuclear waste. For 15 years he lived in Richland, Washington, the dormitory town for the Hanford Nuclear Reservation, at one time home to nine nuclear reactors and five plutonium-processing complexes and the most contaminated nuclear site in the United States. His major ambition while there was to build a "nuclear Stonehenge" on a heavily contaminated area of land in the site, incorporating twelve uranium breeder-blanket assemblies.
Document 10: New England Westinghouse Company: The New England Westinghouse Company is a former division of Westinghouse Electric. It was founded in 1915 in East Springfield, Massachusetts. Its primary purpose was to fulfill a contract to produce 1.8 million Mosin–Nagant rifles for Czar Nicholas II of Russia during World War I. In order to produce the rifles, they purchased the J Stevens Arms & Tool Company in Chicopee Falls, MA on 1 July 1916 and acquired all its holdings which included firearms and tool manufacturing facilities, and the Stevens-Duryea automobile factory. They sold the tool manufacturing portion of Stevens and shut down production of Stevens-Duryea automobiles and civilian firearms. The remaining Stevens firearms facility was renamed the J Stevens Arms Company and its machinery was retooled to meet the Mosin–Nagant contract. After some 770,000 rifles had been produced, the Czar was deposed, the Russian government defaulted on the contract, and New England Westinghouse did not receive payment. The company entered hard times and started producing M1918 Browning Automatic Rifles at the former Stevens-Duryea factory that was originally constructed for car manufacturing in 1912. In 1920 they sold the J Stevens Arms Company to Savage Arms but kept the automobile factory for use producing commercial products for Westinghouse Electric. In 1921, the Stevens-Duryea factory was the location of the first broadcasts of WBZ (AM), the first commercial radio station in the United States.
Document 11: Research Enterprises Limited: Research Enterprises Limited (REL for short) was a short-lived Toronto-based Crown Corporation that built electronics and optical instruments during World War II. They existed only six years from late 1940 until 1946, and active only from late 1941, but during that period they became Leaside's largest employer, producing C$220 million worth of radar systems and optical instruments ($ million in 2017). After the war, the government rapidly closed the various wartime companies it had started. After REL was closed, their factories formed the basis of a Corning Glass plant, Philips Electronics, and a variety of other firms. Today only a few of the original buildings still stand, used primarily for light industrial and small commercial enterprises.
Document 12: 1924 Nixon Nitration Works disaster: The 1924 Nixon Nitration Works disaster was an explosion and fire that claimed many lives and destroyed several square miles of New Jersey factories. It began on Saturday morning, March 1, 1924, when an explosion destroyed a building in Nixon, New Jersey (an area within present-day Edison, New Jersey) used for processing ammonium nitrate. The 11:15 a.m. explosion touched off fires in surrounding buildings in the Nixon Nitration Works that contained other highly flammable materials. The disaster killed twenty people, destroyed forty buildings, and demolished the “tiny industrial town of Nixon, New Jersey.”
Document 13: Triangle Shirtwaist Factory fire: The Triangle Shirtwaist Factory fire in New York City on March 25, 1911 was the deadliest industrial disaster in the history of the city, and one of the deadliest in US history. The fire caused the deaths of 146 garment workers – 123 women and 23 men – who died from the fire, smoke inhalation, or falling or jumping to their deaths. Most of the victims were recent Italian and Jewish immigrant women aged 16 to 23; of the victims whose ages are known, the oldest victim was Providenza Panno at 43, and the youngest were 14-year-olds Kate Leone and "Sara" Rosaria Maltese.
Document 14: United States and weapons of mass destruction: The United States is known to have possessed three types of weapons of mass destruction: nuclear weapons, chemical weapons, and biological weapons. The U.S. is the only country to have used nuclear weapons in combat, when it detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki during World War II. It had secretly developed the earliest form of the atomic weapon during the 1940s under the title "Manhattan Project". The United States pioneered the development of both the nuclear fission and hydrogen bombs (the latter involving nuclear fusion). It was the world's first and only nuclear power for four years (1945–1949), until the Soviet Union managed to produce its own nuclear weapon. The United States has the second largest number of deployed nuclear weapons in the world, after Russia.
Document 15: Radium dials: Radium dials were almost always painted by young women, who used to 'point' their brushes by licking and shaping the bristles prior to painting the fine lines and numbers on the dials. This practice resulted in the ingestion of radium, which caused serious jaw-bone degeneration and malignancy and other dental diseases reminiscent of phossy jaw. The disease, radium-induced osteonecrosis, was recognized as an occupational disease in 1925 after a group of radium painters, known as the Radium Girls, from the United States Radium Corporation sued. By 1930, all dial painters stopped pointing their brushes by mouth. Stopping this practice drastically reduced the amount of radium ingested and therefore, the incidence of malignancy, to zero by 1950 among the workers who were studied.
ground_truth: paint