Chesapeake data (IMAGE) Penn State Caption Researchers analyzed eight years of data from 108 sites in the Chesapeake Bay Program's nontidal monitoring network, looking at daily-scale records of flow and corresponding loads of nitrogen, phosphorus and suspended sediment. Credit Heather Preisendanz research group/Penn State Usage Restrictions non commercial use only License Licensed 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.