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Search results for “Water Quality”

1,000+ results for "Water Quality"

Tiny membrane key to safe drinking water

CSIRO scientists have developed a new filtering technique using Graphair that can remove almost all contaminants from water in a single step. The breakthrough technology has the potential to provide clean drinking water for millions of people worldwide who currently lack access to safe drinking water.

SourceCSIRO Australia·JournalNature Communications·DateFeb 14, 2018

Discrepancies between satellite and global model estimates of land water storage

Research found discrepancies between satellite and global model estimates of land water storage in 186 river basins worldwide. GRACE satellites measured changes in water storage, which differed from simulations made by seven commonly used models. The study highlights the need for improved regional assessments to ensure accurate water a...

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateJan 22, 2018

Mars: Not as dry as it seems

Scientists propose that Martian surface reacted with water and then absorbed it, increasing rock oxidation. The planet's composition, temperature profile and iron content made the surface prone to reaction, dragging water down into the mantle.

SourceUniversity of Oxford·JournalNature·DateDec 20, 2017

In harm's way

Researchers at University of California - Santa Barbara found that about half of hydraulically fractured wells exist within 2 to 3 kilometers of domestic groundwater systems. The study analyzed data from nearly 27,000 wells in 14 states and suggests increased water monitoring efforts are needed to protect water quality.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateNov 27, 2017

Arsenic exposure in us public drinking water declines following new EPA regulations

Compliance with the 2006 EPA regulation on maximum arsenic levels led to a 17% decline in urinary arsenic concentrations among public water users, equivalent to an estimated reduction of over 200 cases of lung and bladder disease per year. Private well water users showed no improvements due to lack of federal regulation.

SourceColumbia University's Mailman School of Public Health·JournalThe Lancet Public Health·DateOct 22, 2017

The Lancet Public Health: EPA regulation on arsenic in US public water systems likely prevented over 200 cancer cases per year

A study published in The Lancet Public Health found that federal drinking water regulations reduced toxic exposure and protected human health. Compliance with the EPA regulation led to a decline of 17% in levels of urinary arsenic, resulting in an estimated reduction of over 200 cases of lung and bladder cancer every year.

SourceThe Lancet·JournalThe Lancet Public Health·DateOct 22, 2017

Clear lakes disguise impaired water quality

Scientists from the University of Minnesota found that excessively fertilized lakes in Iowa had low algae growth due to the destructive effect of nitrate particles, resulting in increased water clarity. This study suggests that relying on water clarity to gauge water quality may not be effective in all regions.

SourceUniversity of Minnesota·JournalInland Waters·DateOct 9, 2017

Researchers create first global map of water in moon's soil

Scientists from Brown University have created a quantitative map of water and its chemical building blocks trapped in the uppermost portion of the Moon's soil. The study found that the signature of water is present nearly everywhere on the lunar surface, with concentrations reaching up to 500-750 parts per million at higher latitudes.

SourceBrown University·JournalScience Advances·DateSep 13, 2017

Universal access to water requires stronger government leadership, say researchers

Research published in Water Resources and Rural Development finds that access to water is worse now than in 1990, highlighting the need for stronger leadership from governments to implement long-term interventions. The study suggests that current approaches by NGOs, private companies, and other organizations are not aligned strategical...

SourceElsevier·JournalWater Resources and Rural Development·DateJun 27, 2017

Freshwater from salt water using only solar energy

A new desalination system uses solar energy to turn salt water into freshwater, promising a cost-effective and sustainable solution for global water scarcity. The technology combines membrane distillation with light-harvesting nanophotonics to efficiently generate steam from sunlight.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateJun 19, 2017

Sour taste cells detect water

Researchers at Caltech have discovered that sour-sensing taste cells play a crucial role in detecting water on the tongue. The study found that these cells are responsible for sensing water through a pathway also used for basic tastes, such as salt and sugar. This finding challenges current understanding of how mammals detect water.

SourceCalifornia Institute of Technology·JournalNature Neuroscience·DateJun 1, 2017

When birds of a feather poop together

Researchers found that even small amounts of bird feces can significantly impact water quality by altering nutrient conditions and microbial communities. The study suggests that bird droppings may contribute to algal blooms, but further research is needed to fully understand the effects.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateMay 17, 2017

Exploring the mysteries of supercooled water

Physicists at Roma Tre University developed a computer-based simulation to study the interactions of water molecules in supercooled conditions. The study reveals that a specific property of the water network can be used to determine changes in entropy, offering insights into unusual thermodynamic facets of water's activity.

SourceAmerican Institute of Physics·JournalThe Journal of Chemical Physics·DateFeb 28, 2017