Articles tagged with Water Pollution
A new report suggests that public pressure can lead to policy changes on plastic pollution, such as levies on single-use plastic bags and bans on microbeads. However, experts argue that a more comprehensive and interdisciplinary approach is needed to address the root causes of the problem.
The study introduces the adjoint method to combine NPS term and initial condition inversion, improving model accuracy. The results show that assimilating NPS term is more important than initial value, and the model can be generalized to other regions.
Giant larvaceans, a type of plankton, consume tiny pieces of plastic and pass them in their fecal pellets, which sink to the ocean bottom. This process suggests that these filter feeders may contribute to faster transfer of plastic pollution from surface to sea floor.
Researchers found that piling sounds stress sea bass, causing them to fail to react to predators while drilling sounds cause them to actively avoid areas with these noises. This exposure can also impair their ability to detect food and has potential effects on reproduction.
A new study estimates that climate change will cause 60,000 premature deaths globally by 2030 and 260,000 by 2100 due to increased air pollution. The research uses global climate models to predict changes in air quality and health outcomes.
Researchers at the University of Illinois have developed a new system that can remove both nitrate and phosphorus from agricultural runoff, potentially improving water quality. The system uses woodchip bioreactors and P-filters to trap pollutants, with one type of filter showing significantly higher effectiveness in removing phosphorus.
Researchers investigate how climate change and environmental toxins affect the world's largest freshwater lake. Studies on amphipods found that temperature increases can be catastrophic for some species, while chemical pollution can have mass impacts on individual species and ecosystems.
The Envirobot robot uses chemical, physical and biological sensors to map variations in water conductivity and temperature, detecting heavy metals like mercury. Biological sensors comprising bacteria, crustaceans and fish cells indicate water toxicity.
Scientists from India develop a simple strategy to recover spilt oil by tightly binding it to a porous matrix, allowing for easy scooping and recycling. The cellulose-based system effectively absorbs oil without sucking in water, making it an environmentally friendly solution.
A new study reveals that 65% of global irrigated areas are impacted by urban wastewater flows, with 29.3 million hectares in countries with limited treatment exposing widespread consumer and farmer health risks. The findings call for urgent investments in improved sanitation to mitigate public health threats.
A novel composite material developed by Swansea scientists effectively removes dye pollutants from water, adsorbing over 90% of the dye. The material breaks down the dye using visible light and can be reused after filtering, providing a promising solution to environmental harm.
A new study found that a warming climate is stirring the remaining Arctic sea ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country's waters. This pollution threat is particularly concerning as it can harm marine ecosystems and human health.
Researchers have developed a novel material that rapidly removes perfluorooctanoic acid (PFOA) from water, achieving concentrations below 10 parts per trillion. The material, made from a networked polymer, has shown greater affinity for PFOA than activated carbon and can be regenerated multiple times.
A recent study published in Proceedings of the National Academy of Sciences reveals that Henderson Island, a remote UK territory, is heavily polluted with an estimated 37.7 million pieces of plastic. The island's beaches have the highest density of plastic debris reported anywhere on the planet, posing significant threats to marine life.
A new method developed at MIT can selectively remove even tiny amounts of contamination from water using an electrochemical process. The approach addresses key limitations of conventional methods and is highly selective, making it a promising solution for environmental remediation and water purification systems.
A new study found that counties with poor environmental quality have higher cancer incidence rates, with air and built environment factors strongly associated. Breast and prostate cancer were most closely linked to poor air quality, highlighting the need for policy changes to reduce pollution.
Researchers at the University of Miami Rosenstiel School developed a new technique to measure near-surface ocean currents using a specialized video camera. This innovation can help scientists predict the fate of spilled oil and other marine pollutants, improving disaster response and understanding pollutant transport.
Researchers develop process to mix chicken droppings with Mexican sunflower to produce biogas, which can power generators and used as fertilizer. The method produces more than 3 kg of biogas from 8 kg of poultry waste and sunflowers, reducing environmental pollution.
A new study confirms that the Arctic Ocean is a dead-end for plastics in the North Atlantic, with high levels found in seas east of Greenland and north of Scandinavia. The research emphasizes the importance of managing plastic litter at its source to prevent unpredictable destinations.
A new type of 'supermolecule' called calix[4] has been found to actively seek and remove certain pharmaceuticals from water. This breakthrough could lead to cleaner water supplies for everyone by allowing for on-site monitoring and selective removal of pollutants.
A new study by the University of Minnesota reveals that lawn fertilizers and pet waste are major sources of nitrogen and phosphorus pollutants in urban watersheds. The research highlights the need to reduce excessive fertilizer use and properly manage pet waste to mitigate pollution and eutrophication.
A new study by Tel Aviv University researchers suggests that Israel's Jordan River, with only 3% of its original flow, can serve as a case study for tackling water scarcity and pollution worldwide. A two-pronged strategy involving regional cooperation to remove pollution sources and increase water flow is proposed.
Researchers create new material that can treat pollutants in water using sunlight, addressing a majority of contaminants. The material's reusability is now a challenge, as it deactivates after use.
Researchers have discovered a way to increase the efficiency of nanomaterials that can harness sunlight to drive chemical reactions. This breakthrough could lead to improved solar panels and new technologies for destroying pollutants and cleaning water.
Researchers have developed an adsorbent material from orange and grapefruit peels that can effectively remove heavy metals and organic compounds from wastewater. The new material has great potential as a sustainable alternative for industrial water treatment processes.
A new 'super sponge' created by University of Minnesota researchers can absorb mercury from water within seconds, removing it to below detectable limits. The technology has the potential to reduce mercury contamination in lakes, industrial wastewater, and tap water, with economic benefits estimated at $212 million annually.
A new study found that global climate change is linked to severe winter haze in eastern China, with Arctic sea ice loss and extensive snow contributing to poor ventilation conditions. The 2013 'airpocalypse' event was exacerbated by these factors, highlighting the need for stringent emission reductions to mitigate future haze events.
Researchers have developed a simple, low-cost device that can detect oil spills in water and pinpoint the type of oil involved. The device uses fluorescence spectrum analysis to identify five types of oil tested in the study.
A recent study by Louisiana State University's Parichehr Saranjampour found that dibenzothiophene, a chemical class of PAHs not on the EPA's list, undergoes evaporation and oxidation at rates faster than previously thought. This discovery has implications for oil spill cleanup and exposure to toxic pollutants.
A Princeton-NOAA study reveals that Asian pollution is driving the persistence of smog in western US regions, despite laws curbing emissions from tailpipes and factories. The study highlights the importance of maintaining domestic emission controls on motor vehicles, power plants, and other industries.
A new study suggests that air pollution can dissolve iron particles in airborne particles, increasing the amount of greenhouse gases that the world's oceans can absorb. Scientists have found thick sulphate coatings containing soluble iron on iron-rich particles from steel manufacturing and coal burning in the East China Sea.
A Tel Aviv University study finds a unique biological model of arsenic detoxification in the Entotheonella bacterium, which inhabits Theonella swinhoei sponges. The bacterium accumulates and neutralizes toxic elements, transforming them into inert products within its cells.
New EU Water Framework Directive recommendations aim to improve monitoring, assessment, and management of water quality. The directive suggests effect-based methods instead of individual substance analysis and proposes a reversed burden of proof for data collection.
Patients with repetitive rehabilitative exercises can contribute to scientific projects while performing engaging physical exercises using low-cost haptic devices. The study increases commitment and effectiveness of the exercises through natural user interfaces.
New research reveals that seagrass meadows can combat bacteria in water, reducing disease associated with marine organisms. The study found lower levels of disease on reefs with adjacent seagrass beds than those without nearby grasses.
Scientists discover high levels of banned pollutants in deep-sea amphipods, revealing human impact on remote ocean habitats. The findings suggest a legacy of pollution from industrial accidents and waste, emphasizing the need to understand the consequences of contamination.
Researchers develop nonpolluting method to dye textiles with structural colors using 3D colloidal crystals, producing a range of colors that remain bright after washing.
A Japanese research group used a new DNA analysis technology to detect 128 fish species in Maizuru bay, Kyoto prefecture. This method, known as eDNA metabarcoding, allowed them to survey fish in multiple areas during a short time period, detecting nearly 80% of the species present.
Researchers used buoys' trajectories to simulate debris motion, finding areas with high probability for MH370 crash. The analysis is consistent with recently confirmed aircraft debris finds, highlighting the importance of sustained ocean observations.
Recent investments in Delhi's health care have failed to improve access to effective care, with crushing poverty and inequalities hindering progress. The city's high rates of premature deaths from causes such as septicemia and tuberculosis are a concern, highlighting the need for increased public health spending and policy changes.
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.
A new study by RIT researchers estimates nearly 10,000 metric tons of plastic debris enter the Great Lakes every year from the US and Canada. The study found that half of this pollution goes into Lake Michigan, with Lake Erie and Ontario receiving significantly lower amounts.
Killifish in polluted salt marshes have developed tolerance to toxins through reduced genetic diversity. The AHR signaling pathway is key, with compensatory mutations mitigating its loss of function.
A team of researchers has found evidence of early pollution caused by copper combustion in a 7,000-year-old dry riverbed in southern Jordan. The discovery sheds light on the Chalcolithic period, when humans transitioned from stone tools to metal production, and highlights the environmental impact of industrial-scale metal production.
Hawai'i researchers found that high levels of nutrients in coastal groundwater correlate with reduced reef health and increased algae blooms. This study identifies Kahului Wastewater Reclamation Facility as a major source of pollution, threatening nearshore ecosystems.
Zhao Dongyuan's work on mesoporous materials has led to the development of filters that can precisely manage chemical movement in water, improving water quality. His research also enables the delivery of medicine with pinpoint precision and the improvement of battery capacity and efficiency.
A new approach has been developed to measure the rate of movement of nitrate from groundwater into streams, which is critical for understanding how this pollutant moves through the environment and assessing water quality management. The research found that the rate of nitrate input to the aquifer dropped by 6 percent in 2013, while the...
A Michigan State University professor suggests that China's Belt and Road Initiative (B&R) could be a superhighway of environmental progress with global cooperation. The initiative aims to connect 65 countries and shape world economies, but it also creates routes filled with opportunity for sustainability advancements.
Scientists at Michigan State University have developed a new framework to understand the complex relationships between urban water management and global sustainability. The study uses telecoupling processes to analyze the water dynamics of Beijing, China's capital city, and its impact on distant regions. By combining local and global p...
Researchers from the University of Minnesota Institute on the Environment have proposed a framework that accounts for the damages caused by reactive nitrogen, estimating the dollars-and-cents cost of nitrogen pollution. The tool will help integrate nitrogen costs into decisions made by agencies and groups.
A new study by the University of Exeter and Plymouth Marine Laboratory reveals that coastal-dwelling marine wildlife are more vulnerable to harmful plastic pollution than previously thought. The research found that animals living in waters near densely-populated coastlines are at risk of coming into direct contact with microplastics.
Research in Japanese lakes reveals an increase in lead contamination since 1900, contradicting the global trend of declining lead emissions. The study suggests that industrialization in East Asia is a significant source of trans-boundary lead pollution affecting Japan.
A recent study from the University of California, Davis, found that coastal development and precipitation increase the risk of disease-causing organisms flowing to the ocean. The study tracked the parasite Toxoplasma gondii, which can shed infective egg-like structures in soil, freshwater, and seawater.
A new study by the University of Adelaide found that nutrient pollution from cities and agricultural land is altering marine sounds, including snapping shrimp and sea urchin noises. This degradation may negatively impact fish populations and their ability to find sheltering habitats.
Phosphorus pollution remains a major concern globally, with 40% of Europe's lakes failing to meet water quality standards due to high levels of phosphorus. Effective lake restoration approaches are needed to address this issue and protect biodiversity and society.
The article explores the concept of a circular economy, which aims to reduce pollution and waste by recycling resources instead of discarding them. Companies are implementing new manufacturing processes that use safer substances, and the European Union is grappling with regulation of chemicals in a closed-loop recycling system.
Researchers at Drexel University discovered that diatom species composition can be correlated with New Jersey water quality standards, making them an efficient indicator of nutrient levels. The team created the diatom biological condition gradient (BCG) scale, which provides a clear and comprehensive picture of water quality.
A special issue of Deep Sea Research II explores the global issue of chemical munitions dumped at sea, finding that while some munitions pose little risk to humans, others can have adverse effects on fish populations. International collaboration has shed light on techniques for investigating munitions dumpsites and mitigating damage.
Researchers found that Lake Michigan painted and snapping turtles carry all eight metals, with concentrations correlating with soil assessments in the wetlands. The turtles' long lifespan and position in the food chain make them useful indicators of wetland pollution, potentially posing a health risk to humans who consume them.
A new study found that contaminants from the Deepwater Horizon oil spill persisted in the subsurface water for months, eventually accumulating on the seafloor as a 'dirty blizzard' of marine debris. The remnants of oil and drilling mud combined with microscopic algae to descend to great depths, affecting deep-sea fish and corals.