What is driving nitrogen concentration changes over time in US streams? Results from the U.S. EPA National Rivers and Streams Assessments (2000-2014)
Jiajia Lin1, Ryan A Hill2, Robert Daniel Sabo3, Alan Herlihy4, Marc Weber4, Stephen D LeDuc5, Brian Pickard6, J Renee Brooks7, Chris Clark8, Scott G Leibowitz9, John Stoddard4 and Jana Compton10, (1)National Academy of Sciences, Corvallis, OR, United States, (2)ORISE Postdoctoral Fellow, c/o US EPA WED, Corvallis, OR, United States, (3)Environmental Protection Agency, Exposure Analysis and Risk Characterization Group, Washington, DC, United States, (4)Environmental Protection Agency Corvallis, Western Ecology Division, Corvallis, OR, United States, (5)Environmental Protection Agency Arlington, National Center for Environmental Assessment, Arlington, VA, United States, (6)TetraTech, Research Triangle Park, NC, United States, (7)U.S. Environmental Protection Agency Corvallis, Western Ecology Division, Ecological Effects Branch, Corvallis, OR, United States, (8)Environmental Protection Agency Arlington, Arlington, VA, United States, (9)US EPA, Western Ecology Division, Corvallis, OR, United States, (10)U.S. Environmental Protection Agency Corvallis, Western Ecology Division, Freshwater Ecology Branch, Corvallis, OR, United States
