Researchers from North Carolina State University and the University of Colorado, Boulder, have developed a statistical model that allows them to tell where a dust sample came from within the continental United States based on the DNA of fungi found in the sample.

The primary goal of the research was to develop a new forensic biology tool for law enforcement or archaeologists. “But it may also give us a greater understanding of the invisible ecosystems of microbial life that we know are all around us, but that we don’t fully comprehend,” says Neal Grantham, a Ph.D. student in statistics at NC State and lead author of a paper on the work.

The researchers developed the model using data from the Wild Life of Our Homes citizen science project conducted by the Your Wild Life lab based at NC State. The project collected dust samples from approximately 1,000 homes across the continental U.S., including samples from 47 of the 48 contiguous states. more