Researchers collect sediment for testing. (IMAGE) Morris Animal Foundation Caption Dr. Ben Kisila bends down to collect sediment for testing as part of a study that found cancer-causing contaminants in a Chesapeake Bay tributary near a coal ash landfill. Credit Tyler Frankel Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.