"The amount (of beryllium) used at UNC was very small, and there's no public health hazard," said Josh Silverman, a research analyst for the U.S. Department of Energy. "But the researchers could have been exposed to the beryllium."
As part of an Dec. 7 executive order issued by President Clinton, the DOE released a list last week of 317 facilities involved in nuclear weapons production and research during the Cold War.
Clinton issued the order in an attempt to identify workers who might be eligible for compensation due to exposure-related health problems under the Energy Employees Occupational Illness Compensation Act of 2000.
Silverman said UNC is listed as a beryllium vendor because of a government-classified study conducted from 1949 to 1954. The research, which was contracted by the Atomic Energy Commission, produced the report, "Radioautographic Study of Distribution and Retention of Beryllium in the Rat."
"UNC conducted a research experiment that involved beryllium, which is a highly toxic metal," Silverman said. "The experiment had to do with when rats ingest beryllium from a health standpoint. It was a study on the physical properties of beryllium."
Beryllium is a silvery-gray metallic element that is used in nuclear weapons components. Exposure to beryllium particles can cause chronic beryllium disease, which is an irreversible and possibly fatal scarring of the lungs.
While it was general knowledge in the 1950s that beryllium could be dangerous to people who were exposed to large amounts of the element, most scientists were not aware that it could be harmful for those who experienced minimal exposure, Silverman said.
"There are individuals who could have inhaled beryllium," he said. "They should get in touch with the Department of Energy."
Silverman said he doesn't know what UNC department did the study, which researchers were involved or even if it was definitely UNC-Chapel Hill that did the research. "I'm not even positive it's in Chapel Hill," he said. "It was a UNC contract, but it may have not been Chapel Hill."