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  2. Freshwater environmental quality parameters - Wikipedia

    en.wikipedia.org/wiki/Freshwater_environmental...

    Phosphorus compounds are usually found as relatively insoluble phosphates in river water and, except in some exceptional circumstances, their origin is agriculture or human sewage. Phosphorus can encourage excessive growths of plants and algae and contribute to eutrophication. If a river discharges into a lake or reservoir phosphate can be ...

  3. Nutrient pollution - Wikipedia

    en.wikipedia.org/wiki/Nutrient_pollution

    Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients.It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters), in which excess nutrients, usually nitrogen or phosphorus, stimulate algal growth. [1]

  4. Liberty Hill wastewater plant ordered to lower level of ...

    www.aol.com/liberty-hill-wastewater-plant...

    The Texas Commission on Environmental Quality's three commissioners on Thursday voted to lower the phosphorus limit that the Liberty Hill Wastewater Treatment Plant discharges into the river from ...

  5. Eutrophication - Wikipedia

    en.wikipedia.org/wiki/Eutrophication

    Therefore, nitrogen levels are more important than phosphorus levels for understanding and controlling eutrophication problems in salt water. [53] Estuaries, as the interface between freshwater and saltwater, can be both phosphorus and nitrogen limited and commonly exhibit symptoms of eutrophication.

  6. Decades-long phosphorus study of Lower Fox River shows ... - AOL

    www.aol.com/decades-long-phosphorus-study-lower...

    A section of Trout Creek pictured on June 2, 2023, in Oneida, Wis, which sits in the Lower Fox River watershed. Thanks to the Oneida Nations efforts to reduce phosphorus runoff, the creeks on the ...

  7. Trophic state index - Wikipedia

    en.wikipedia.org/wiki/Trophic_state_index

    A eutrophic water body, commonly a lake or pond, has high biological productivity. Due to excessive nutrients, especially nitrogen and phosphorus, these water bodies are able to support an abundance of aquatic plants. Usually, the water body will be dominated either by aquatic plants or algae. When aquatic plants dominate, the water tends to be ...

  8. Churni River - Wikipedia

    en.wikipedia.org/wiki/Churni_River

    High concentrations of phosphate, nitrate, and ammonia are often due to agricultural runoff. This study evaluates how these practices elevate nutrient levels in the Churni River. Phosphate: Expected phosphate levels in uncontaminated water are 0.01–0.03 mg L−1. Levels above 0.1 mg L−1 cause eutrophication.

  9. River ecosystem - Wikipedia

    en.wikipedia.org/wiki/River_ecosystem

    Specifically river water can include, apart from the water itself, [citation needed] dissolved inorganic matter and major ions (calcium, sodium, magnesium, potassium, bicarbonate, sulphide, chloride) dissolved inorganic nutrients (nitrogen, phosphorus, silica) suspended and dissolved organic matter; gases (nitrogen, nitrous oxide, carbon ...