Uranium in Runoff from the Gulf of Mexico Distributive Province: Anomalous Concentrations

See allHide authors and affiliations

Science  11 Feb 1972:
Vol. 175, Issue 4022, pp. 629-631
DOI: 10.1126/science.175.4022.629


Uranium concentrations in North American rivers are higher than those reported 20 years ago. The increase is attributed to applications to agricultural land of larger amounts of phosphate fertilizer containing appreciable concentrations of uranium. Experiments showing a constant phosphorous-uranium ratio for various types of fertilizers and for the easily solubilized fraction of 0-46-0 fertilizers support this view.