Phosphorous from detergents often contaminates urban stormwater, while nitrogen comes primarily from fertilizer use in agricultural areas.

VOA: standard.2010.08.04

"If you have an imbalance, or literally too much nitrogen and too much phosphorous getting into those systems, you can essentially deplete the oxygen in that water.

VOA: standard.2010.08.04

They,and other victims, continue to suffer from the devastating injuries inflicted upon them by the use of lethal weaponry, including white phosphorous, that has physically and psychologically maimed or traumatized them,"

VOA: standard.2009.11.04