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Models Simulate Nitrate Dynamics in Garonne, Southwest France
The over-enrichment of fresh, transitional, and marine waters with nitrogen (N) can lead to problems associated with eutrophication, such as a change in species composition of aquatic plants and nuisance algal blooms. In this context, dynamic models of flow and water quality are required to aid the implementation of the Water Framework Directive... view more... (2009-01-06)
Indigenous water frogs under threat
Indigenous water frogs can be crowded out by immigrant or imported species. This is the finding of a Franco-German study. The scientists investigated water frog populations in France and Northern Spain and noticed that the marsh frog (Rana ridibunda), which normally occurs only in Eastern Europe, has the potential to crowd out indigenous species... view more... (2007-11-30)
Nitrate in Lake Superior: On the rise
Nitrate levels in Lake Superior, which have been rising steadily over the past century, are about 2.7 percent of the way toward making the lake's water unsafe to drink, according to a study by University of Minnesota (UMN) researchers. view more (2007-06-06)
An Antimicrobial Solution For Blocked Urinary Catheters? (p 1435)
Authors of a research letter in this week's issue of THE LANCET propose a new method for inflating urinary catheters-which could avoid common problems of encrustration and blockage of the catheter. Urinary catheters are usually inflated with water, but this often results in bacterial build-up leading to catheter encrustration and blockage. David... view more... (2003-04-23)
Follow the nitrogen to extraterrestrial life
The great search for extraterrestrial life has focused on water at the expense of a crucial element, say geobiologists at the University of Southern California. view more (2006-05-05)
Well water should be tested annually to reduce health risks to children
Private well water should be tested yearly, and in some cases more often, according to new guidance offered by the American Academy of Pediatrics (AAP). view more (2009-05-26)
Water testing device could save lives in developing countries
Young engineer Richard Brown has won a national award for an invention which could save lives in developing countries. Richard, 22, who graduated from the University of Newcastle upon Tyne earlier this year in Civil and Environmental Engineering, has created a simple device for testing whether water supplies contain dangerous levels of bacteria.... view more... (2000-10-06)
New system of wastewater treatment could reduce the size of treatment plants by half
A group of researchers from the University of Granada (Universidad de Granada) have come up with a wastewater treatment system which has three clear advantages with respect to systems currently used: it is possible to obtain cheaper water of a higher quality, it considerably reduces the size of treatment plants (by more than half) and it minimizes... view more... (2007-08-09)
How Good Are Indicator Bacteria at Predicting Pathogens in Recreational Water?
Bacteria commonly used to indicate health risks in recreational waters might not be so reliable after all. Pathogenic E. coli were pervasive in stream-water samples with low concentrations of fecal indicator bacteria. view more (2009-09-23)
Fecal Microorganisms Inhabit Sandy Beaches of Florida
raditionally, the cleanliness of a beach is monitored by sampling the bathing water a few meters from shore. But since sand is an effective filter, it follows that fecal bacteria (those from sewage) may be concentrated in the sand as the tide flows and ebbs. Moreover, trapped bacteria are offered a large surface area for attachment, nourishment... view more... (2008-05-14)
Soggy Sands of Mars?
Cracks and fins in the sand in an American desert look very similar to features seen on Mars and may indicate the recent presence of water at the surface. view more (2006-04-07)
Controlling schistosomiasis: buffalo or snails?
A parasitic infection common in China and Southeast Asia could be effectively reduced by controlling snail populations, according to research published in PLoS Medicine. view more (2008-01-22)
Mixing it, Southern Ocean style
Sea water being churned in the ocean off Antarctica may be having a greater effect on global patterns of ocean movement than previously thought, according to new research reported in this week's edition of the international journal Science (9 January 2004). view more (2004-01-05)
Water table depth tied to droughts
Will there be another "dust bowl" in the Great Plains similar to the one that swept the region in the 1930s? view more (2008-09-30)
A warmer world might not be a wetter one
A NASA study is offering new insight into how the Earth's water cycle might be influenced by global change. view more (2005-10-17)
Plastic-Protein Hybrid Materials
Enzymatic films for bioactive surfaces We encounter them every day in laundry detergent, dishwashing liquid, or shower gel: surfactants - surface-active substances. Surfactants belong to a category of molecules called amphiphiles, molecular hermaphrodites consisting of a water-loving (hydrophilic) "head" and a water-hating (hydrophobic) "tail".... view more... (2001-12-21)
Sunlight has more powerful influence on ocean circulation and climate than North American ice sheets
A study reported in today's issue of Nature disputes a longstanding picture of how ice sheets influence ocean circulation during glacial periods. view more (2008-11-07)
No oxygen in Eastern Mediterranean bottom-water
Research from Utrecht University shows that there is an organic-rich bed of sediment in the floor of the Eastern Mediterranean. This bed formed over a period of about 4000 years under oxygen-free bottom-water conditions. view more (2008-09-29)
Better water use could reduce future food crises
If the overall water resources in river basins were acknowledged and managed better, future food crises could be significantly reduced, say researchers from Stockholm Resilience Centre at Stockholm University, Stockholm Environment Institute and Potsdam Institute for Climate Impact Research. view more (2009-05-06)
Genetically engineered blood protein can be used to split water into oxygen and hydrogen
Scientists have combined two molecules that occur naturally in blood to engineer a molecular complex that uses solar energy to split water into hydrogen and oxygen. view more (2006-12-01)
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