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.
Canada's drinking water can remain at risk long after wildfires burn out, according to a UBC-led global review that found water-quality impacts often emerge months or years later—not just immediately after a fire. Researchers ...
Environment
Mar 4, 2026
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Scientists have developed a new edge-of-field water-treatment system that reduces the load of excess nutrients washing into waterways from farm drainage systems. Their method combines a woodchip bioreactor with a two-step ...
Biotechnology
Feb 26, 2026
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Public concern over the total failure of the Moa Point wastewater treatment plant on Wellington's south coast has been growing, despite this week's announcement of an independent review.
Plants & Animals
Feb 17, 2026
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The Baltic Sea has been under pressure for decades: Although phosphorus and nitrogen river loads, the main cause for its eutrophication, have been significantly reduced, adverse effects such as algal blooms and oxygen depletion ...
Environment
Feb 16, 2026
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CO2 that has been absorbed and accumulated in fresh water areas like lakes and reservoirs—is receiving attention for its potential contributions to achieving a carbon neutral society. Kobe University is a hub for freshwater ...
Earth Sciences
Jan 23, 2026
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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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