Nutrient content (water) in the context of environmental and water science topics refers to the concentration and speciation of dissolved and particulate nutrients—primarily nitrogen (e.g., nitrate, nitrite, ammonium, dissolved organic nitrogen) and phosphorus (e.g., orthophosphate, dissolved and particulate organic phosphorus), as well as ancillary elements such as silica—within freshwater, marine, or wastewater systems. It is quantitatively assessed using chemical and sometimes bioassay methods to characterize trophic status, evaluate eutrophication risk, model biogeochemical cycles, and inform regulatory standards for water quality, ecological health, and resource management.
Under the lead of the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) the influence of parasitic fungi on the physiology and survival of cyanobacteria in the Baltic Sea was investigated. Such infections are known ...
Ecology
Jan 21, 2026
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Scientists at the University of Illinois Urbana-Champaign can now differentiate between human-derived and hydrological contributions of riverine nitrogen pollution in the Upper Mississippi River Basin. The advancement, published ...
Environment
Jan 17, 2026
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While a wealth of nutrient export models exists, a knowledge gap persists regarding how climate and land-use changes specifically drive dissolved inorganic nitrogen (DIN) export in subtropical catchments.
Earth Sciences
Jan 16, 2026
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When humans need more Vitamin B12—a nutrient that makes healthy red blood cells and turns food into energy—we can get it by taking a supplement or eating fish. But what about ocean life, including the seafood we eat? Are ...
Ecology
Dec 18, 2025
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20
What if, instead of taking a water or soil sample to the lab, you could take the lab to the sample? That's what a team of researchers reporting in ACS Sensors did with a new nitrate-monitoring "lab-on-a-drone" system. The ...
Environment
Dec 17, 2025
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22
Cover crops improve soil health and water quality, prevent nutrient loss, and reduce greenhouse gas emissions, but they're only grown on about 5% of U.S. agricultural lands. That's despite billions in annual federal investments, ...
Agriculture
Dec 4, 2025
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Aging lead-pipe drinking water systems, along with the public health measures implemented to reduce their risks, are reshaping the chemistry and health of nearby urban streams. New research from University of Pittsburgh biogeochemists, ...
Environment
Nov 13, 2025
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Beneath the surface of lakes and coastal waters lies a hidden world of sediment that plays a crucial role in the health of aquatic ecosystems. "Benthic fluxes" of nitrogen and phosphorus, such as releases of these dissolved ...
Earth Sciences
Nov 5, 2025
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Wetlands are an important part of the ecological system, providing a myriad of benefits for people, wildlife, and the environment. They also serve as "nature's kidneys," filtering out pollutants from surface water. A new ...
Environment
Oct 28, 2025
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50
A new study conducted in collaboration with the Leibniz Center for Agricultural Landscape Research (ZALF) shows when farmers combine alfalfa with ribwort plantain, the forage yield can be doubled compared to conventional ...
Ecology
Oct 21, 2025
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