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Current Water Quality News and Events, Water Quality News Articles.
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Hawai'i drought during El Niño winter? Not always, according to new research
El Niño events have long been perceived as a driver for low rainfall in the winter and spring in Hawai'i, creating a six-month wet-season drought. However, a recent study by researchers in the University of Hawai'i at Mānoa revealed the connection between Hawai'i winter rainfall and El Niño is not as straightforward as previously thought. (2021-01-06)

Remote sensing data sheds light on when and how asteroid Ryugu lost its water
Rocks on Ryugu, a 'rubble pile' near-Earth asteroid recently visited by Japan's Hayabusa2 spacecraft, appear to have lost much of their water before they came together to form the asteroid, new research suggests. (2021-01-05)

Controlling the nanoscale structure of membranes is key for clean water, researchers find
A desalination membrane acts as a filter for salty water: push the water through the membrane, get clean water suitable for agriculture, energy production and even drinking. The process seems simple enough, but it contains complex intricacies that have baffled scientists for decades -- until now. Researchers from Penn State, The University of Texas at Austin, Iowa State University, Dow Chemical Company and DuPont Water Solutions published a key finding in understanding how membranes actually filter minerals from water, online today (Dec. 31) in Science. (2020-12-31)

Desalination breakthrough could lead to cheaper water filtration
Producing clean water at a lower cost could be on the horizon after researchers from The University of Texas at Austin and Penn State solved a complex problem that has baffled scientists for decades, until now. (2020-12-31)

Anti-transpirant products unnecessary in cycad propagation
In a first-of-its-kind study within cycad horticulture literature, University of Guam researchers have found that the use of anti-transpirants neither help nor hinder successful propagation of cycad stem cuttings. (2020-12-30)

Climate crisis is causing lakes to shrink
Climate change is impacting not only the oceans, but also large inland lakes. As the world's largest lake, the Caspian Sea is a perfect example of how a body of water can and will change. In an article in the Nature journal Communications Earth & Environment, Dr. Matthias Prange of MARUM - Center for Marine Environmental Sciences at the University of Bremen, and his colleagues discuss the possible ecological, political and economic consequences, as well as viable solutions. (2020-12-23)

Scientists develop new land surface model including multiple processes and human activities
Researchers from the Institute of Atmospheric Physics developed a land surface model CAS-LSM that has improved the descriptions of biogeochemical process and urban modules, compared with the earlier version of this model. (2020-12-18)

Drinking water significant source of microplastics in human diet
In an effort to understand the potential risks associated with exposure to micro/nanoplastics, the?Emerging Risks of Micro/nanoplastics: Perspectives From Diverse Sectors symposia at the 2020 Society for Risk Analysis virtual Annual Meeting, December 13-17, 2020,?aims to highlight the current state of knowledge associated with physical and chemical transformation, hazard characterization, environmental effects, social implications and policy limitations.? (2020-12-17)

Can water saving traits help wine survive climate change?
Climate change is expected to make many grape-growing regions too hot and dry to produce high-quality wine from traditional varieties. But scientists at the University of California, Davis, have found that wine grape varieties from regions that are more prone to stress have traits that could help them cope with climate change. (2020-12-17)

Tepary beans -- a versatile and sustainable native crop
This drought and heat tolerant crop can provide nutrition, even when grown in harsh environments. (2020-12-16)

How water helps the substrate into the enzyme
Researchers from Bochum and Berkeley have investigated why cages can increase the catalytic activity of enclosed molecules. Using terahertz spectroscopy and complex computer simulations, they showed that water encapsulated in a tiny cage has special properties - that are structurally and dynamically distinct from any known phase of water. The water forms a droplet inside the cage that facilitates the encapsulation of a host molecule, i.e. to access the catalytic centre. (2020-12-15)

Water may be an effective treatment for metabolic syndrome
Researchers at the University of Colorado Anschutz Medical Campus have discovered that fructose stimulates the release of vasopressin, a hormone linked to obesity and diabetes. They also found that water can suppress the hormone and alleviate these conditions in mice. (2020-12-15)

Evapotranspiration in an arid environment
Evapotranspiration is an important process in the water cycle because it is responsible for 15% of the atmosphere's water vapor. Without that input of water vapor, clouds could not form, and precipitation would never fall. It is the process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants. (2020-12-15)

Using water fleas, UTA researchers investigate adaptive evolution
Researchers from The University of Texas at Arlington resurrected the preserved eggs of a shrimp-like crustacean to examine long-standing questions about adaptive evolution, reporting the results in the journal Proceedings of the National Academy of Science. (2020-12-11)

Bio-inspired lanthanide-transition metal cluster for efficient overall water splitting
A bio-inspired lanthanide-transition metal cluster as oxygen-evolving center anchored on P-doped graphitic carbon nitrides for efficient photocatalytic overall water splitting was demonstrated. Mechanistic investigation shows synergistic effects of lanthanide ion and variable-valence Co ions in the oxygen-evolving reaction. This work not only prepares a synthetic model of bio-inspired oxygen-evolving center but also develops an avenue to design efficient catalysts for overall water splitting by coupling bio-inspired clusters and photoactive supports. (2020-12-10)

Quality suffers for audit offices that emphasize non-audit services, study shows
Regulators have expressed concerns that audit firms' emphasis on non-audit services (NAS) such as consulting could distract from an audit, and quality does suffer in certain cases, according to new research from the University of Notre Dame. (2020-12-10)

The greening of the earth is approaching its limit
Vegetation has a key role in mitigating climate change because it reduces the excess CO2 that we humans emit into the atmosphere. Just as when sportsmen and women are doped with oxygen, plants also benefit from the large amounts of CO2 that accumulate in the atmosphere. If more CO2 is available, they photosynthesize and grow more, which is called the fertilizing effect of CO2. (2020-12-10)

Water on Mars not as widespread as previously thought, study finds
University of Arkansas scientists created planetwide maps of where water might be found on Mars. It is probably scarcer than previously thought, they concluded. (2020-12-10)

Let the sunshine in: self-cleaning membrane under visible light treatment
The Korea Institute of Science and Technology (KIST) reported that the research team led by Dr. Jeehye Byun and Director Seok Won Hong from Water Cycle Research Center developed a membrane material that self-cleans biological contaminants through irradiation of sunlight. According to the team, the newly developed membrane material is expected to significantly reduce the cost of membrane management as the membrane can be reused after just 10 minutes of sunlight irradiation. (2020-12-09)

Big data offers promise of better groundwater management in California
A McGill University-led research team has analyzed big data of more than 200,000 groundwater samples taken from across the state and found that there are problems with the guidelines used for groundwater management. Known as the 'Base of Fresh Water', the guidelines are close to fifty years old and don't reflect current uses, knowledge, concerns or technologies related to managing groundwater in this coastal state with a multi-billion-dollar agricultural industry. (2020-12-09)

New study allows regional prediction of uranium in groundwater
Stanford researchers can predict where and when uranium is released into aquifers and suggest an easy fix to keep this naturally occurring toxin from contaminating water sources. (2020-12-08)

Getting to the bottom of Arctic landslides
Erosion of the frozen soil of Arctic regions, known as permafrost, is creating large areas of subsidence, which has catastrophic impact in these regions sensitive to climate change. As the mechanisms behind these geological events are poorly understood, researchers from the Géosciences Paris Sud laboratory (CNRS / Université Paris-Saclay), in cooperation with the Melnikov Permafrost Institute in Yakutsk, Russia, conducted a cold room simulation of landslides, or slumps, caused by accelerated breakdown of the permafrost. (2020-12-08)

Pollution from cooking remains in atmosphere for longer - study
Particulate emissions from cooking stay in the atmosphere for longer than previously thought, making a prolonged contribution to poor air quality and human health, according to a new study. (2020-12-08)

AGU panel explores environmental impacts of the COVID-19 pandemic, as observed from space
COVID-19 has changed the way we live and work, as various health and safety restrictions keep more of us at home more often. The resulting changes to our behavior are already impacting the environment around us in myriad ways, according to comparisons of remote sensing data before and during the pandemic collected by NASA, U.S. Geological Survey (USGS), and ESA (European Space Agency) Earth-observing satellites and others. (2020-12-08)

Colorado mountains bouncing back from 'acid rain' impacts
Niwot Ridge in the Rocky Mountains is slowly recovering from increased acidity caused by vehicle emissions in Colorado's Front Range, suggesting that alpine regions across the Mountain West may be recovering. This is good news for the wildlife and wildflowers of Rocky Mountain National Park and for water sources that supply the Front Range and the Mountain West. (2020-12-08)

Common pipe alloy can form cancer-causing chemical in drinking water
Rusted iron pipes can react with residual disinfectants in drinking water distribution systems to produce carcinogenic hexavalent chromium in drinking water, reports a study by engineers at UC Riverside. (2020-12-03)

Research identifies nanoscale effect of water and mineral content on bone
Researchers conducted the first study of the effect of water and mineral content on collagen fibrils, the essence of bone material, which will aid the development of synthetic materials to mimic bone. (2020-12-03)

Keeping California a powerhouse of almond production
Research shows nitrogen efficiency and productivity not a tradeoff. (2020-12-02)

Best region for life on Mars was far below surface
The most habitable region for life on Mars would have been up to several miles below its surface, likely due to subsurface melting of thick ice sheets fueled by geothermal heat, a Rutgers-led study concludes. The study, published in the journal Science Advances, may help resolve what's known as the faint young sun paradox - a lingering key question in Mars science. (2020-12-02)

Ultrasensitive transistor for herbicide detection in water
University of Tokyo researchers have fabricated a tiny electronic sensor that can detect very low levels of a commonly used weed killer in drinking water. (2020-12-01)

Plastic contaminants harm sea urchins
Plastics in the ocean can release chemicals that cause deformities in sea urchin larvae, new research shows. (2020-11-30)

New tech can get oxygen, fuel from Mars's salty water
A new electrolysis system that makes use of briny water could provide astronauts on Mars with life-supporting oxygen and fuel for the ride home. (2020-11-30)

Transportation of water into the deep Earth by Al-phase D
Researchers at Ehime University have recently measured the propagation speed of ultrasonic waves in an aluminum-rich hydrous mineral called Al-phase D at pressure conditions relevant to the Earth's deep mantle. Their results suggest that seismic shear anomalies observed locally beneath subduction zones may reveal the presence of hydrous minerals in the uppermost lower mantle, which would have important implications for the Earth's interior because hydrogen affects considerably the physical and chemical properties of mantle minerals. (2020-11-30)

The neurobiology of thirst: The neural mechanisms that control hydration
Scientists at the Tokyo Institute of Technology (Tokyo Tech) provide deeper insights into neural thirst control. Their study published recently in Nature Communications indicates that cholecystokinin-mediated water-intake suppression is controlled by two neuronal 'thirst-suppressing' sub-populations in the subfornical organ in the brain; one population is persistently activated by excessive water levels, and the other, transiently after drinking water. (2020-11-26)

Climate change presents new challenges for the drinking water supply
Rising temperatures in Germany's largest drinking water reservoir present new challenges for the drinking water supply. According to a group of UFZ researchers, the impacts of this increase can be alleviated by mitigating climate change and applying new management strategies. (2020-11-23)

Researchers prove water has multiple liquid states
When water reaches approximately -63 degrees centigrade it can separate into two liquid states, with one liquid being 20% more dense than the other. This is a fundamental finding that explains many of the anomalous properties of water at low temperatures. The finding has potential implications in low-temperature chemical and biochemical processes in aqueous environments. (2020-11-19)

Two liquids of water exist
Using x-ray lasers, researchers at Stockholm University have been able to follow the transformation between two distinct different liquid states of water, both being made of H2O molecules. At around -63 Centigrade the two liquids exist at different pressure regimes with a density difference of 20%. By rapidly varying the pressure before the sample could freeze, it was possible to observe one liquid changing into the other in real time. Their findings are published in the journal Science. (2020-11-19)

Study finds health trade-offs for wildlife as urbanization expands
City living appears to improve reproductive success for migratory tree swallows compared to breeding in more environmentally protected areas, a new five-year study suggests. But urban life comes with a big trade-off - health hazards linked to poorer water quality. (2020-11-18)

'Oasis effect' in urban parks could contribute to greenhouse gas emissions, ASU study finds
Following a year of on-site analyses at a Phoenix-area park, hydrologist Enrique Vivoni of Arizona State University identified that the park showed what meteorologists call the ''oasis effect,'' a microclimate that is cooler than a surrounding dry area due to the evaporation of a water source. (2020-11-18)

Environmental scientists' new ozonation method treats water from antibiotic residues
Clean drinking water is considered to be one of the earth's most precious and threatened resources. Recent studies show that increasing concentrations of pharmaceuticals can be found in surface waters, which can end up in drinking water. TalTech environmental scientists are looking for ways to treat drinking water from hazardous pharmaceutical residues. (2020-11-17)

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