Contact: Matt Shipman
North Carolina State University
Caption: The dune filtration systems are built under dunes that are covered with vegetation, making it difficult or impossible to tell that the dunes have been disturbed. A three-year study found that the dune systems reduced the concentration of bacteria in stormwater runoff by 96 percent.
Credit: Michael Burchell, North Carolina State University
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Related news release: Researchers devise hidden dune filters to treat coastal stormwater runoff