I think the article is incorrect as the EPA has a research facility near here in the Research Triangle Park. It may not be the University UNC Chapel Hill, that would explain the lack of news.
Here is the caption from the published research study:
National Health and Environmental Effects Research Laboratory and National Exposure Research Laboratory, US Environmental Protection Agency, Chapel Hill, North Carolina, USA
Chapel Hill Laboratory "The division comprises approximately 55 federal employees and is located on the campus of the University of North Carolina at Chapel Hill (UNC)."