How Natural is the Dissolved Inorganic Composition of Mississippi River Water?

Bernhard Peucker-Ehrenbrink1, Stefani T Johnson1, Shelley J. Meaux2, Kristina Brown1, Michael J. Blum2, Mead A Allison3, Janine Halder4, Leonard I. Wassenaar5, Amanda M. Cuesta2, Emily S. Norris2 and Rebecca S. Wang2, (1)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Tulane University of Louisiana, New Orleans, LA, United States, (3)Tulane University of Louisiana, New Orleans, United States, (4)IAEA International Atomic Energy Agency, Isotope Hydrology Laboratory, Vienna, Austria, (5)IAEA International Atomic Energy Agency, Vienna, Austria