UNCG students are looking at how metal contaminants affect invertebrates in the Dan River, reports by the News & Observer. The Dan River, which rises in the Blue Ridge Mountains of Virginia, is a 200-mile run to Kerr Lake that crosses into North Carolina and back several times.

The contamination is the result of Duke Energy’s catastrophic coal-ash spill, which has unknown long-term effects on the environment only two months after the spill.