Roy Sando Michael J. MacDonald Carlin Girard Cheryl A. Eddy-Miller 2016 <p>Nutrients, such as nitrogen and phosphorus, are essential for plant and animal growth and nourishment, but the overabundance of bioavailable nitrogen and phosphorus in water can cause adverse health and ecological effects. It is generally accepted that increased primary production of surface-water bodies because of high inputs of nutrients is now the most important polluting effect in surface water in the developed world.</p><p></p> application/pdf 10.3133/sir20165160 en U.S. Geological Survey Estimated nitrogen and phosphorus inputs to the Fish Creek watershed, Teton County, Wyoming, 2009–15 reports