Contamination by excessive inputs of nutrient: a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. Sources of nutrient pollution include runoff from fields and pastures, discharges from septic tanks and feedlots, and emissions from combustion.
a nourishing contamination that causes unwanted plant growth. ocean: a very large body of salt water that covers nearly 3/4 of the Earthâ€™s surface. oil spill: a form of pollution in which oil from various sources leaks into the water. peat: rich organic material that is made up mostly of partially decayed plant material.
Contamination of water resources by excessive inputs of nutrients. In surface waters, excess algal production is a major concern.
Pollution containing nitrogen and/or phosphorus which stimulates aquatic algal growth, thus robbing waters of oxygen and killing fish and other aquatic organisms. Nutrient pollution comes from runoff of excess fertilizers, animal waste, and other diffuse sources, as well as from wastewater treatment plants and some industries.
Contamination of water by too many nutrients, which often come from fertilizer or waste runoff. In surface waters, this can cause overproduction of algae (this is called an algal bloom), which uses up all the oxygen in the water and suffocates fish and other marine life.
The release of nutrients such as nitrogen and phosphates into the environment that stimulate algae and phytoplankton growth. Can result in algae blooms and eutrophication
Condition in coastal and wetland ecosystems caused by runoff that is unnaturally high in nitrogen and phosphorus. These chemicals are ordinarily not hazardous, but when they occur in high concentrations, they stimulate the growth of algae. This leads to a serious imbalance resulting in the death of the natural aquatic life.