Articles tagged with Water
Researchers compare sanitation systems in Brazil and USA, finding presence of contaminants in drinking water, including industrial compounds, pesticides, and endocrine disrupters. The study suggests that complementary treatments are needed to obtain clean water that can be safely consumed.
A new study from the University of Waterloo found that the beverage industry is heavily promoting sugar-sweetened beverages in Guatemalan schools, contributing to high consumption rates among students. In contrast, private school students who have access to free drinking water consumed sweetened beverages less often.
A new test invented by researchers at the University of Waterloo can detect E. coli in drinking water in under three hours and at a cost of 50 cents, improving water safety globally.
A recent study by University of California, Riverside researchers found high levels of manganese in groundwater wells in the US and three Asian countries, exceeding World Health Organization guidelines. The study suggests public health officials should monitor manganese levels to ensure safe drinking water, particularly for children.
Researchers discover high arsenic concentrations in groundwater supplies along the Indus River, posing a significant health risk to millions. The study suggests irrigation practices and soil pH may contribute to arsenic enrichment, highlighting the need for urgent testing and mitigation measures.
A comprehensive study found high arsenic concentrations in groundwater throughout the Indus Plain, threatening public health. The researchers recommend urgent action, including testing and treating affected wells, to address this significant global health risk.
Drexel University researchers found associations between acute gastrointestinal illness and water turbidity, even at low levels. Cloudy drinking water provides a place for germs like norovirus, Giardia, and Cryptosporidium to hide, increasing the risk of illness.
Researchers found alarming concentrations of antimony in Roman water pipes from Pompeii, linked to vomiting, diarrhea, and organ damage. The element is acutely toxic, causing rapid reactions that can lead to dehydration, liver and kidney problems, and even cardiac arrest.
Researchers found that while partial line replacements can decrease lead levels in tap water, concentrations spike right after and remain elevated for months. Full service line replacement or flushing the replaced pipes is recommended to address potential contamination.
A study by the University of Zaragoza found Giardia and Cryptosporidium in 55% and 70% of drinking water plants, posing a public health risk despite low concentrations. The pathogens are resistant to chlorination and can trigger diarrheic outbreaks.
Researchers have found high levels of manganese and arsenic in Indian groundwater, highlighting the need for further study into their relationship and potential health risks. The study suggests that processes between manganese and dissolved organic matter may contribute to the distribution of arsenic in groundwater.
A study by the University of East Anglia warns that common water treatments containing colloidal silver may cause genotoxicity, damaging DNA. This can lead to reproductive issues and harm to future generations. The World Health Organization advises against its use as a primary water treatment.
Researchers at ETH Zurich developed a simple yet effective hybrid filter that can remove heavy metals, radioactive waste, bacteria, and other toxic substances from polluted water. The membrane is made of denatured whey proteins and activated charcoal and has been patented in 90 countries.
The Waters nanoEase M/Z columns offer streamlined installation using ZenFit Connection Technology, reducing chromatographic variability. These columns deliver superior performance in proteomics and biomarker research applications.
A new technique uses magnetic nanoparticles to separate oil from water through electrostatic force and a magnet, showing promise for improving water treatment in oil and gas production. The researchers believe their method could also be used to treat millions of gallons of fresh water and clean drinking water.
Researchers found a link between drinking iced tea and increased risk of cholera in Ben Tre province, Vietnam. Drinking iced tea was associated with an increased risk of contracting the disease, possibly due to Vibrio cholerae bacteria found in ice.
Researchers at UT Austin have developed a material that can detect a wide range of chemicals quickly and cheaply, leading to major public health gains. The innovation enables rapid on-site detection of chemicals, reducing costs associated with cleaning up spills, remediating sites, and operating medical imaging devices.
Researchers detected neonicotinoid pesticides in drinking water in an agricultural area, highlighting concerns over their impact on human health. A new study found that a specific treatment method can effectively remove these substances from water.
The UBC-developed system uses a combination of fibre membranes and beneficial bacteria to remove contaminants from non-potable water. This innovative approach aims to provide an efficient and low-maintenance solution for communities with limited access to clean drinking water.
Researchers at the University of Kansas found that weather whiplash, caused by changing climate patterns, will degrade Midwest's drinking water due to extreme fluctuations between drought and floods. This leads to a spike in nitrogen levels in surface waters, forcing municipalities to construct costly nitrate-removal facilities.
Researchers discovered acetone droplets can hover above water surface, propelled by the Leidenfrost effect, with drag playing a crucial role. The faster the droplet moves, the faster it speeds up before immersion occurs.
A new software tool calculates the probability of triggering manmade earthquakes from wastewater injection and oil gas production activities. The Fault Slip Potential (FSP) tool identifies at-risk faults, allowing energy companies and regulators to avoid them and implement enhanced monitoring efforts.
Researchers created a solar still that converts water to vapor very efficiently, with only 12% of available energy lost during evaporation. The device can produce 3-10 liters of water per day, making it an ideal solution for small communities in developing areas and regions affected by natural disasters.
The researchers developed a multifunctional composite material that can remove inorganic, organic, radioactive, and microbial impurities from water. The material, called SILP, uses polyoxometallates and tetraalkylammonium cations to effectively remove heavy metals and other contaminants.
Researchers found that Legionella pneumophila grows well in warm tap water installations with ample dissolved organic matter, supporting biofilm formation. The study suggests that microgram-per-liter concentrations of biodegradable compounds can induce bacterial growth on surfaces, promoting proliferation of the bacteria.
Researchers from Utah State University received the American Water Resources Association Award for their study on global megacity water challenges. The team characterized and compared the water issues faced by 28 United Nations-designated megacities, highlighting unique challenges in each city.
A case report highlights the risks of water intoxication in patients with urinary tract infections. Doctors recommend reevaluating hydration advice due to a lack of evidence, citing a high mortality rate for hyponatraemia.
Researchers at Ohio State University have developed lightweight, flexible metal foil-based LEDs for portable ultraviolet light purification of drinking water and sterilization of medical equipment. This technology has the potential to make safe drinking water accessible in remote areas.
A new study from the University of Delaware has found that people prefer to invest in conservation, such as protecting key areas of a watershed, over traditional water treatment plants. Participants in the field experiment were more willing to donate to conservation causes than drinking water utilities.
A Monash University study revealed a 'swallowing inhibition' mechanism in the human body to regulate fluid intake and prevent over-drinking. The research showed that drinking too much water can cause potentially fatal water intoxication, highlighting the importance of listening to thirst cues rather than following an elaborate schedule.
A new study shows that dramatic environmental changes in Lake Malawi's water levels and clarity likely drove the diversification of hundreds of cichlid species. The researchers found alternating periods of deep and shallow water, which created new habitats for fish to adapt into.
A study in Kenya found that a simple voucher system can significantly reduce health product wastage without a significant decrease in usage. The system was more effective than charging money or free distribution in screening out those who would not use the products.
A study published in Geophysical Research Letters reveals that slower snowmelt in the western US is reducing streamflows and impacting downstream water availability. The research found that areas with significant snowfall are most sensitive to changes in snowmelt rates, with some regions experiencing more significant decreases in strea...
A global study found that one-third of large cities spend 50% more on water treatment costs due to damaged watersheds, with a total cost exceeding $100 billion US. Cities can protect their drinking water by planning for sustainable development and investing in urban source watersheds.
Recent testing indicates that Flint drinking water quality is improving, with decreasing levels of DNA markers for Legionella. However, pathogenic forms of the bacteria were still culturable at some sampling points, highlighting the need for continued vigilance.
David W. Schindler, renowned limnologist, receives the SETAC Rachel Carson Award for his work on laundry detergent phosphates and eutrophication. His research has led to policy changes worldwide.
A Duke University study found coal ash ponds in five Southeastern US states consistently contaminate nearby surface waters and groundwater with toxic heavy metals. The study also suggests that removing the ponds may not be enough to address ongoing subsurface contamination.
A simple paper sheet can remove resistant viruses from water, improving access to safe drinking water for millions. The mille-feuille filter uses cellulose nanofibers and has a unique layered internal architecture.
The US lead poisoning crisis worsens as unknown communities are left exposed to tainted water. Inadequate funding may not alleviate damage done in the past.
A new study found that drinking water from private wells, especially those established before the 1950s, may contribute to elevated bladder cancer risk in Maine, New Hampshire, and Vermont. The researchers estimated that increasing cumulative arsenic exposure was associated with an increased risk of bladder cancer.
A Duke University study found high levels of contaminants in brine-laden wastewater from fracking spills, exceeding federal drinking water guidelines. Soil samples contained higher levels of radioactivity downstream from spill sites, suggesting radium builds up in the environment.
Aging lead pipes pose health risks across the US, with federal funding called for to address concerns sparked by the Flint water crisis. Scientists recommend replacing deteriorating infrastructure to prevent lead leaching into drinking water supplies.
Researchers create a quantum simulator to study novel phase transitions resulting from energetic three-way battles between interaction energy, motional energy and long-range interaction.
A new study finds that nitrogen fertilizer applied to fields today will pollute water for decades, increasing the risk of blue baby syndrome and other serious health concerns. The researchers discovered that nitrogen is building up in soils, creating a long-term source of nitrate pollution in ground and surface waters.
A Dartmouth-led study found that low levels of arsenic in pregnant women's drinking water and food may be related to decreased head circumference at birth. The study also linked arsenic exposure to lower birth weight and birth length, with associations varying by mother's pre-pregnancy BMI and infant sex.
The use of residual disinfectants in drinking water has been compared between Western European countries, the U.S., and waterborne outbreak data. The Netherlands has the lowest risk of waterborne disease despite no residual disinfectant use due to newer pipe infrastructure.
The top 5 finalists of the Green and Sustainable Chemistry Challenge were selected from almost 500 submissions worldwide. The projects aim to provide environmentally friendly processes, products, and resources for developing countries. The winning project will receive €50,000, while the second prize winner will get €25,000.
Researchers at Silent Spring Institute found 27 unregulated contaminants in private well water samples on Cape Cod, including pharmaceuticals and flame retardants. The study suggests that backyard septic systems are likely the source of contamination, which poses health risks to 44 million Americans relying on private wells.
The study found that intestinal parasites like whipworm and roundworm did not decrease in prevalence during the Roman Period, but instead increased. The Roman public baths may have actually helped spread these parasites due to infrequent water changes and scum buildup.
A study found that ultrasonic humidifiers emit aerosols with dissolved contaminants, including minerals and metals, which are 90% respirable. The quality of the water source affects the health consequences of inhaling these contaminants.
A new study by Indiana University researchers reveals that government entities are less likely to comply with certain federal environmental regulations than similar entities owned by private companies. Publicly owned facilities are more likely to violate standards and face lower consequences for non-compliance.
A global team of experts aims to mitigate the spread of antibiotic-resistant organisms through contaminated water. The researchers focus on understanding how wastewater treatment processes affect resistance dissemination and develop novel approaches to stop it.
A bioelectronic nose that mimics the human nose can detect traces of bacteria in water by smelling it, without complex equipment. The sensor is sensitive to low levels of contamination, making it more useful than existing methods.
A recent study found that drinking less alcohol is the most effective way to avoid hangovers, contrary to popular claims that eating water or consuming hydrating drinks can prevent them. Researchers surveyed over 1,300 students and found no correlation between hydration and hangover severity.
Researchers at the University of Birmingham found that drinking 500ml of water 30 minutes before main meals led to significant weight loss in obese adults. Participants who preloaded with water lost an average of 1.3kg over 12 weeks, compared to 0.8kg in those who did not.
A study by the National Institutes of Health found that low-level arsenic exposure before birth is associated with early puberty and obesity in female mice. The researchers exposed pregnant mice to low levels of arsenic through drinking water and observed significant weight gain and premature onset of puberty in the offspring.
A new method using nanotechnology-based paper pages can eliminate water-borne bacteria, making drinking water safe for millions. The Drinkable Book, developed by Dr. Theresa Dankovich, uses metal nanoparticles to purify up to 26 gallons of water per page.
A recent study found that galvanized steel pipes can release high levels of lead into drinking water, with concentrations reaching up to 172 µg/L. Copper piping installed upstream can worsen lead release from the zinc coating, posing a significant risk to public health.
Research reveals that wastewater discharge concentrations of cocaine, morphine, and oxycodone remain relatively consistent downstream, indicating ineffective removal by treatment plants. The findings emphasize the importance of improving wastewater treatment to protect potable water sources.
A real-life trial in urban Bangladesh shows that oral cholera vaccine is safe and effective in reducing severe cholera cases by nearly 40% among vaccinated individuals. The vaccine's success lends support to its use in routine mass vaccination programs, particularly in endemic countries where clean water and sanitation are scarce.