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Search results for “Water Quality”

1,000+ results for "Water Quality"

Water molecules dance in three

Researchers have accurately described the interaction energy among three water molecules for the first time. The study uses advanced spectroscopy and quantum calculations to analyze the intermolecular vibrations of water trimers.

SourceRuhr-University Bochum·JournalAngewandte Chemie International Edition·DateApr 24, 2020

ASU scientists lead study of galaxy's 'water worlds'

A team of international researchers has provided a mineralogy lab study for water-rich exoplanets, revealing an unexpected new solid phase with silicon, hydrogen, and oxygen. The findings suggest that the distinction between water and rock layers in these planets may be 'fuzzy' at high pressure and temperature.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateApr 21, 2020

A cheap organic steam generator to purify water

Researchers at Linköping University have created a cheap and efficient steam generator that uses sunlight to desalinate and purify water. The system utilizes a cellulose-based aerogel structure that absorbs energy from sunlight, resulting in high-quality drinking water production.

SourceLinköping University·JournalAdvanced Sustainable Systems·DateApr 20, 2020

Planning for future water security in China

A new study found that China's water use has decelerated since the 1980s due to the adoption of efficient irrigation techniques and industrial water recycling technologies. However, uncertainties remain due to land institution transitions, urbanization, and potential increased water use in intensive farming and industrial sectors.

SourceInternational Institute for Applied Systems Analysis·JournalProceedings of the National Academy of Sciences·DateMar 24, 2020

Healthcare innovators focus on 'quality as a business strategy' -- update from Journal of Healthcare Quality

The Journal for Healthcare Quality has published a special issue on quality as a business strategy, featuring six innovative approaches to improving healthcare. These programs include improving clinical documentation, assessing the costs of pressure injuries, and implementing bundled payments for joint replacement.

SourceWolters Kluwer Health·JournalJournal for Healthcare Quality·DateMar 6, 2020

Beef consumption hurting river quality

A new study published in Nature Sustainability shows that irrigation of cattle feed crops is the leading driver of water shortages and fish imperilment in the Western United States. Sixty fish species are at an elevated risk of global extinction due to flow depletion, primarily caused by irrigation of cattle-feed crops.

SourceUniversity of Delaware·JournalNature Sustainability·DateMar 2, 2020

The shape of water: What water molecules look like on the surface of materials

Researchers used persistent homology and molecular dynamics simulations to study water molecules on graphene surfaces. They found that water molecules form stable polygonal shapes, which evolve into 3D tetrahedral structures after three layers are added. This discovery provides insights into the transition between surface and free water.

SourceTokyo University of Science·JournalJapanese Journal of Applied Physics·DateFeb 5, 2020

Mountain vegetation dries out Alpine water fluxes

During droughts, mountain forests and grasslands at higher elevations release more water into the air than in normal growth periods. This is due to increased metabolism promoting water uptake by vegetation. As a result, evapotranspiration rates are above average, draining rivers and streams of half their usual volume.

SourceETH Zurich·JournalNature Climate Change·DateJan 29, 2020

How anti-sprawl policies may be harming water quality

Higher-density development with more impervious surfaces causes runoff, leading to increased water pollution. Agriculture also contributes significantly to water pollution, and anti-sprawl policies can prevent much-needed land-use changes that reduce pollution.

SourcePenn State·JournalResource and Energy Economics·DateJan 16, 2020

Studying water quality with satellites and public data

A team from Colorado State University has created a novel dataset, AquaSat, by merging large public datasets of water quality observations with satellite imagery. This 'symphony of data' provides over 6 million water quality observations, unlocking powerful new applications in remote sensing of water quality. The study aims to improve ...

SourceColorado State University·JournalWater Resources Research·DateDec 4, 2019

Antiquated dams hold key to water quality

Researchers investigating the effects of dam removal on water quality and nutrient processing in streams and rivers. Removing antiquated dams may harm or help water quality depending on the scenario. The study aims to identify hotspots of nitrogen processing and develop a new model for stream and riparian processes.

Searching for water

A team of researchers from the University of Delaware examined the age, origin, and sustainability of fossil aquifers in the Mega Aquifer System (MAS) in the Arabian Peninsula. They used a combination of geochemical analysis, satellite data, and field investigations to determine the quality and age of the water.

SourceUniversity of Delaware·JournalJournal of Hydrology·DateOct 15, 2019

Building water-efficient cities

A study led by the University of Arizona found that city design factors such as housing density, lot size, and vegetated land cover significantly impact residential water use. Researchers estimated models for annual and summer water use in four cities, including Austin, Phoenix, Portland, and Salt Lake City.

SourceUniversity of Arizona·JournalJournal of the American Planning Association·DateSep 5, 2019

Fetching water increases risk of childhood death

A new study reveals that adults fetching water is associated with an increased risk of child death and children collecting water with increased odds of childhood diarrheal disease. Improving access to clean drinking water and sanitation reduces maternal and child health risks, including lower child mortality rates.

SourceUniversity of East Anglia·JournalInternational Journal of Hygiene and Environmental Health·DateSep 3, 2019

Fighting child diarrhea

A simple, electricity-independent device has been proven effective in reducing child diarrhea rates by up to 23% in developing countries. The Aquatabs Flo technology uses precise chlorine dosing to purify water without compromising taste, offering a promising solution to control the second-leading cause of death for children globally.

SourceStanford University·JournalThe Lancet Global Health·DateAug 8, 2019

Water solutions without a grain of salt

A solar steam generation system has been developed to produce clean water from salty ocean water with almost 100 per cent salt removal, providing a solution to water shortages in regional areas. The technology uses photothermal materials and the power of the sun, achieving efficient and continuous clean water production.

SourceMonash University·JournalEnergy & Environmental Science·DateJul 23, 2019