Articles tagged with Water Pollution
Researchers identify OmpU protein variants associated with antimicrobial resistance in Vibrio cholerae bacteria. Understanding the evolutionary origins of AMR can inform the development of effective therapeutics against resistant infections.
The City University of Hong Kong (CityU) has been approved to establish the first UNESCO Regional Training and Research Centre on coastal contaminant monitoring in Hong Kong, focusing on the Western Pacific region. The centre aims to strengthen marine pollution monitoring, promote innovative technologies, and facilitate international r...
A comprehensive study found that wild boar liver can be used as a bioindicator for PFAS contamination in the environment, detecting hot-spots in regions with elevated PFAS levels. The researchers discovered that PFAS concentrations are highest in areas where industrial activities and agricultural practices have led to contamination.
Researchers in China developed a method to increase the efficacy of membrane separation technology using nanofibrous membranes with silver nanoparticles. The technology is up to 99% effective at separating oil from water, promoting a stable hydration layer that impedes oil droplets and enhances antibacterial properties.
A study by Pohang University of Science & Technology (POSTECH) analyzed water pollution complaints in Alabama and found a significant decrease during the COVID-19 pandemic. The research team used AI methodologies to examine sentiment changes and correlations with climatic extremes.
Researchers have developed a jellyfish-like robot capable of collecting and transporting waste particles in the ocean without causing harm to marine species. The robot uses electrohydraulic actuators to swim and create currents, allowing it to trap objects along its path and transport them to the surface for recycling.
Researchers developed a suite of tools to assess economic benefits of improving urban stream water quality. The 'ecological production function framework' estimates use and non-use benefits, including increased property values and protected natural resources.
A new University of Illinois study suggests that widespread planting of cereal rye could significantly reduce nitrate levels in Illinois' tile drainage water. The research found that adopting winter cover crops, such as cereal rye, can help minimize nitrogen loss and improve water quality.
A new study reveals that beaver ponds with deeper sediments can store up to 15% of the nitrogen that enters them. This finding is crucial for understanding nitrogen pollution in rivers and streams, where beavers play a key role in shaping ecosystems.
A new study finds that communities with high proportions of elderly residents and those living in mobile homes or group homes are at greater risk of groundwater contamination from fracking. Higher-income households were more likely to have access to mitigation strategies, while lower-income households faced greater risks.
Researchers at the University of Stirling found that microplastics can transport harmful bacteria from wastewater to beaches in Scotland. The study suggests that these bacteria can survive for up to 7 days on beach sand and show resistance to common antibiotics.
A UH-led research team has developed a cost-effective method for removing harmful chemicals and heavy metals from coastal waters by utilizing native aquatic plants. The system, which includes floating aquatic plants and synthetic mats, can help restore ecological balance and keep communities healthy.
Researchers have developed a new class of materials that can efficiently remove glyphosate from groundwater. The new metal-organic frameworks (MOFs) have a large surface area and can be customized depending on the application.
Scientists have identified specific genetic variants in wheat and barley that enable plants to adapt to nitrogen deficiency by increasing root growth and improving nitrogen content. These findings offer promising opportunities for plant breeding to develop varieties with enhanced nitrogen use efficiency.
A new study by the University of Exeter found that microplastic pollution reduces energy production in microscopic creatures like Paramecium bursaria. The microorganisms rely on algae for energy through photosynthesis, but severe contamination can lead to a 50% decline in net photosynthesis.
Researchers at Chalmers University of Technology have developed a cellulose-based material that can easily remove 80% of toxic dyes from wastewater using sunlight. The method is cost-effective, simple to set up, and could benefit countries with poor water treatment technologies.
The Minderoo-Monaco Commission on Plastics and Human Health issues a sweeping new report highlighting the far-reaching health hazards of plastics across their life cycle. The report examines the economic, health, environmental, and social costs associated with plastics from extraction to end states.
Researchers from China and Singapore study the radiative properties of polyamide-12, a common marine microplastic pollutant. They found that most of the incident radiation is scattered by PA12 particles, affecting ocean light transmission and marine ecology.
A new study from the University of Illinois finds that local enforcement of manure management regulations can effectively reduce nutrient concentrations in rivers and lakes. The study focuses on Wisconsin's unique approach, which allows counties to participate in enforcement without state approval.
Researchers explore biotechnologies that use microbes to extract rare minerals and fuels from wastewater. This innovation has the potential to reduce greenhouse gas emissions by utilizing previously unused resources.
A widely used dry cleaning chemical, trichloroethylene (TCE), may be fueling the rise of Parkinson's disease. Exposure to TCE has been linked to an increased risk of developing the condition, particularly among individuals who worked with or lived near contaminated sites.
The Nile River Delta faces significant environmental threats from heavy metal pollution and coastal erosion, impacting 60 million people in Egypt. The study highlights the need for conservation measures to slow degradation and recover the ecosystem.
Experts call for a legally-binding treaty to govern Earth's orbit, citing the growing threat of satellite debris. With an expected 60,000 satellites in orbit by 2030, scientists warn that large parts of space could become unusable if action is not taken immediately.
A study reveals a rapid increase in ocean plastics since 2005, with an estimated 170 trillion plastic particles in the world's oceans by 2019. The researchers predict that without policy changes, plastic pollution will accelerate sixfold by 2040.
A model predicting oxygen levels in freshwater streams, developed by WVU researcher Omar Abdul-Aziz, helps determine stream pollution and health. The tool allows citizen scientists to take action on stream pollution, with potential applications for implementing the Clean Water Act.
New research confirms that coastal water pollution transfers to the atmosphere in sea spray aerosol, contaminating air for people inland. Bacteria and chemicals from sewage-polluted Tijuana River are detected in ocean aerosols.
Researchers propose a novel approach to analyzing microplastic particles, highlighting the importance of particle size and shape in determining environmental impact. Studies show that even samples with similar numbers of particles can have varying levels of plastic pollution based on mass, volume, and specific surface area.
Scientists discovered that 12 strains of cyanobacteria can passively collect rare earth elements from wastewater through a process called biosorption. This process has great potential for the circular recovery and reuse of rare earth metals in industries such as mining, electronics, and chemicals.
Researchers found a significant gap between when private wells were sampled and when they were likely to become contaminated, with higher levels of bacteria detected in summer months. The study has implications for national and global water sources, highlighting the need for more guidance on seasonal timing for testing.
Researchers at Princeton University have developed a new solar absorber gel technology that can filter pollutants from water, producing almost fourfold more filtration rate than its predecessor. The device can provide enough clean water to meet daily demand in many parts of the world.
Citizen science project in Arctic reveals 1/3 of plastic debris comes from Europe, with significant contributions from Germany. The findings underscore the urgent need for improved local waste management and reduced global plastic production to tackle pollution in remote ecosystems like the Arctic.
Researchers found that small, disconnected wetlands are twice as effective in catching pollutants like nitrogen and phosphorus. These isolated wetlands can protect lake or river ecosystems from pollution, improving water quality and biodiversity.
The study highlights technological innovations to accelerate green transformation of textiles, including sustainable materials, manufacturing technologies, and recycling methods. These developments aim to reduce greenhouse gas emissions and water consumption, minimizing environmental impacts.
A new study on Chesapeake Bay water quality found that pollution thresholds affect reduction efforts, and larger reductions may be needed to induce complete reversal of eutrophication-induced hypoxia. The research revealed that the system responds only until a certain threshold is crossed, then it takes twice the effort to make a change.
The study found that the lack of capacity in wastewater treatment works is a fundamental cause behind increased frequency and duration of Combined Sewer Overflows (CSOs). This refutes suggestions that blame unpredictable weather for the issue. CSO use has been increasing, with most of it attributed to WWTWs' inadequate capacity.
A recent study, led by Purdue University researchers, identified key decisions and resource limitations during the Marshall Fire in Colorado. The findings highlight ways to minimize drinking water safety risks and expedite recovery for wildfire-vulnerable communities.
A new study identifies a high-risk area in Qatar's Gulf as the most vulnerable to oil spills, which could disrupt global gas supply and cause unprecedented water shortages, compromising containment efforts.
A laboratory experiment shows that bacteria can digest and break down plastic, producing CO2 and other harmless substances. While microbial digestion is not a solution to the massive problem of oceanic plastic, it may provide part of the explanation for where plastic 'missing' in oceans stays.
A University of Alaska Fairbanks-led study found that kelp farms can effectively remove nitrogen and carbon from coastal areas, with ribbon kelp being more efficient at absorption. This technology has the potential to mitigate climate change by storing atmospheric carbon.
A new modelling study reveals that most plastic debris on Seychelles beaches originates from distant sources, not the islands themselves. The study provides quantitative estimates of the sources of plastic debris for the Seychelles and other remote islands in the western Indian Ocean.
A new study by Environmental Working Group scientists reveals that consuming one serving of freshwater fish per year is equivalent to ingesting water with high levels of the toxic chemical PFOS for a month. The study analyzed data from over 500 fish samples and found median amounts of PFAS in freshwater fish to be 280 times greater tha...
Scientists discovered high levels of toxic chemicals, including 4-nonylphenol from toilet paper, in the bodies of orcas in B.C., which may contribute to their population decline. Forever chemicals like 7:3-fluorotelomer carboxylic acid were also found, highlighting the need for pollution management and regulation.
A new study analyzed state nutrient reduction strategies and found that initial energy and inclusive planning processes were key to success. Emphasizing local water body impacts was more motivating than distant goals, and addressing scale challenges is crucial for significant results.
Experiments show that UV light from the sun breaks down plastics on the ocean surface, turning them into smaller, invisible nanoplastic particles. This process could account for a substantial amount of the 'Missing Plastic Paradox', where plastic waste in the ocean is only a fraction of what has been littered.
Researchers found that riparian buffers can increase stream flow during low-flow events and maintain water levels in areas with high future development. However, the effectiveness of buffers was limited, and they were not enough to mitigate extreme changes in stream flow.
A new UW-led report emphasizes the unequal burden of marine plastic pollution on different communities, particularly in developing countries. The study calls for a more equitable approach to address the issue, focusing on plastics production rather than waste management.
A new open-access Raman spectral library enables scientists to detect molecular 'fingerprints' of particles and better trace sources of ocean plastic pollution. The database adds 42 polymer types, including those from non-plastic particles, to improve accuracy.
Researchers found that microplastic mass sequestered in seafloor sediments mimics global plastic production from 1965 to 2016. The study revealed a tripling of microplastics deposited on the seafloor since 2000, with accumulation rates mirroring global use of plastics.
Researchers found that sea urchin larvae exposed to high levels of plastic pollution developed significant developmental abnormalities, including malformation of the skeleton and immune cells. The study reveals how newly made PVC pellets and beach-collected fragments cause harm to the embryos.
The global food system exerts significant pressure on the environment and climate, with five countries accounting for almost half of the impact. Locally produced food is often the most environmentally friendly option, but production methods can vary greatly between countries.
Researchers at the University of California, Riverside, have created a novel method to break down per- and polyfluoroalkyl substances (PFAS), also known as 'forever chemicals', in contaminated water. The hydrogen-infusion and UV light-based process achieves high molecular destruction rates without generating unwanted byproducts.
Researchers found biocide-free silicone-based paint to be more effective against fouling than copper-based paints in the Baltic Sea region. The environmentally friendly alternative drastically reduced heavy metal releases into sensitive sea ecosystems.
Researchers have developed a low-cost staining method to track coral larvae as they disperse and settle in coral reefs. The method uses colored dyes to differentiate between groups or species, facilitating conservation planning, behavioral ecology, and reef restoration experiments.
A new study reveals that microfibers in the Mediterranean Sea are home to over 2,600 bacterial species, including Vibrio parahaemolyticus, a potentially deadly bacterium. The presence of these bacteria poses a significant threat to human health and aquatic ecosystems.
Researchers have developed an innovative magnetic adsorbent that can remove microplastics 1,000 times smaller than those detectable by existing wastewater treatment plants. The process takes just one hour, compared to days for current methods.
Researchers have launched five projects to investigate the impact of pollution on UK rivers, which fail to meet good ecological status due to pollutants like chemicals, microplastics, and pharmaceuticals. The projects aim to improve water quality, biodiversity, and resilience to climate change.
Research reveals microplastic fibres in all samples, with majority found in Antarctic air, indicating animals breathe them. Antarctic sea ice also traps microplastics, acting as a temporary sink for global plastic pollution.
A new study published in Marine Pollution Bulletin found significantly higher levels of polyethylene, polypropylene, acrylic, and polyamide in the North Atlantic gyre compared to other offshore locations. Inshore areas exhibited a diverse range of polymers, possibly influenced by proximity to various plastic sources.
Researchers measured phycotoxin concentrations in bull sharks caught in the Indian River Lagoon, finding multiple toxins widespread or persistent in the environment. The study highlights dietary exposure as a key mechanism of toxin transfer to bull sharks.
A new Concordia study reveals that container ship accidents are a growing concern, with significant shortcomings in maritime cargo safeguards. The researchers found that existing regulations are inadequate, and the lack of data makes it difficult to adopt new regulations.