Articles tagged with Water Pollution
A study conducted at Montana's Flathead Lake Biological Station discovered high levels of microplastics in the lake's surface waters. The research, led by Dr. Xiong from China's Institute of Hydrobiology, identified three main ways microplastics enter the lake: atmospheric deposition, river inputs, and shoreline sources.
Scientists have created a membrane made from a waste by-product of vegetable oil manufacturing that can filter out heavy metals from contaminated water. The membrane uses proteins derived from peanut or sunflower oil production to attract and trap heavy metal ions, purifying water to international drinking standards.
A recent study found that approximately 43.5% of rivers worldwide have concerning concentrations of pharmaceutical ingredients, including antidepressants and painkillers. The research highlights the need to reduce emissions of these substances into the environment to mitigate their impact on river health.
Researchers at FAU Harbor Branch develop an ocean model to study connectivity between the Everglades and Florida Keys via Florida Bay. The tool aims to predict changes in responses to water management, ecological restoration and climate change.
Researchers have developed a new hybrid machine learning approach that forecasts lake ecosystem responses to climate change with improved accuracy. The model, which uses data-driven methods and minimal assumptions, is able to capture the complex relationships between variables in ecosystems.
High concentrations of disinfection byproducts in tap water are linked to adverse health outcomes. Researchers suggest adopting solutions such as advanced water treatment and sourcing water from less polluted areas to reduce the risk. Additionally, nanofiltration is proposed as an effective household treatment to improve water quality.
A team of Chinese and U.S. scientists created the first global map of chronic oil slicks in oceans and found that more than 90 percent come from human sources. Most slicks occur near coastlines, with significant reductions in pollution around regulated offshore areas.
A recent study published in Science found that more than 90% of chronic oil slicks on the Earth's oceans are caused by human activities. The research team used satellite radar images and artificial intelligence to analyze over 560,000 images collected between 2014 and 2019.
Climate-related events and air pollution disproportionately affect socially and economically disadvantaged children, exacerbating health issues such as preterm birth, respiratory illness, and malnutrition. The authors emphasize the need for simultaneous adaptation and mitigation strategies to protect children's health.
Researchers have created a new classification system for coexisting mangrove-coral habitats, identifying four distinct types: lagoons, creeks, fringe areas, and under the mangrove canopy. These habitats are diverse, with about 130 species of corals living in them, and are crucial for coral survival.
A new standardized method for measuring calcium carbonate on ocean floors can help researchers compare coral reef health globally. The 'how-to' guide enables the collection of comparable data from coral and oyster reefs worldwide, providing insights into the impacts of climate change and human activities.
Global mismanagement of phosphorus is causing twin crises, with skyrocketing fertilizer prices and pollution damaging biodiversity. The '50, 50, 50' goal aims to reduce global phosphorus pollution by 50% and increase recycling by 50%, while adopting more efficient use in agriculture.
A team of scientists led by Dr. Matthew L. Niemiller has rediscovered the Shelta Cave Crayfish, a rare and ancient species thought to be extinct for 30 years. The discovery was made in a cave system in northern Alabama and highlights the importance of conservation efforts to protect threatened species.
Researchers evaluated the toxicological effects of BaP on bay scallops, finding increased immune response-related parameters with time at higher concentrations. The study suggests that BaP dampens the immune response of scallops and decreases their capacity to respond to oxidative stress.
A new study by Bigelow Laboratory confirms the effectiveness of chemical dispersants in breaking down oil in seawater under real-world conditions. The researchers found that dispersants were effective if applied within two to four days, a typical time frame for oil spill response.
The study reveals that the U.S., Brazil, and China are top suppliers of global plastic packaging waste, with North and South America responsible for most production and consumption. The researchers emphasize the need for producers and consumers to share responsibility and costs to reduce plastic use.
A new Virginia Tech study found that anoxic conditions can lead to a vicious cycle of oxygen loss in lakes, causing them to become sources of nutrients downstream. The study's findings suggest that climate change and excess pollutant runoff are exacerbating this issue.
A multidisciplinary project aims to develop a decision-making tool to estimate the risk of water contamination in flooded areas. The research team will collect public data and conduct field work to test their approach in small study areas, ultimately enabling Québec to reduce health risks by better protecting water quality.
Elevated heavy metal levels in rivers can lead to higher antibiotic resistance levels, according to research by Newcastle University and the Indian Institute of Technology, Delhi. The study found that metal pollution increases antibiotic resistance gene abundances, affecting resident bacteria.
A team of researchers at Flinders University has developed a novel sorbent made from waste materials that can absorb almost all mercury in polluted water in minutes. The material, coated with poly(S-r-limonene), is fast-acting and selective, capturing only mercury without other metal contaminants.
Scientists have developed a novel 'green' fertilizer that uses an advanced milling technique to produce slow-release soil nutrient crystals. The method reduces nitrogen pollution and energy consumption compared to traditional fertilizers.
Researchers monitored mercury levels in artificial lakes to identify sources and factors affecting concentration. Most mercury originated from soil in catchment areas, with surface runoff contributing in shorter-residence time reservoirs.
Researchers estimate that by 2040, up to 80 million metric tons of plastic will be annually released into the ocean. The study reveals that wind transport contributes significantly to plastic particle distribution in remote regions. Integrating microplastic into air pollution measurements is crucial for better understanding its effects.
The Save Our Seas Foundation has joined the Shark Conservation Fund to combat overfishing, illegal trade, and habitat destruction threatening shark populations. The partnership aims to conserve shark species, maintain healthy oceans, and address climate change's impact on marine biodiversity.
Researchers create high-performance catalyst to pull ammonia and solid fertilizer from low-level nitrates in industrial wastewater, reducing carbon dioxide emissions. The process works at room temperature and under ambient pressure, with potential for decentralized ammonia production.
Researchers found that Australian native rushes, including Phragmites australis, can significantly remove PFAS chemicals from contaminated surface water. The study used floating wetlands as a mechanism for plants to grow hydroponically and showed a 42-53% removal of legacy PFAS contaminants.
The EU's CLAIM project successfully contributed to reducing plastic litter and microplastics in European seas through innovative technologies and methodological approaches. The project's findings have paved the way for policy change and increased awareness of the importance of plastic-free seas.
An international group of scientists calls for regulating and phasing out the production of new plastics to reduce plastic pollution. Gradually cutting production is expected to bring numerous societal, environmental, and economic benefits, including boosting recycled plastics' value and helping tackle climate change.
Researchers have found a group of deep-sea bacteria that stick to plastic, allowing them to 'hitchhike' across the ocean and potentially enhancing microbial connectivity. These bacteria were discovered in the North-East Atlantic and include strains previously isolated from shipwrecks and extreme environments.
Researchers found that non-biting midge larvae accumulate pesticides from polluted water and retain them into adulthood. Adult female midges have higher pesticide concentrations than males, which are transferred to their offspring. The study suggests that midges can be a source of pesticides in terrestrial ecosystems.
Researchers from Flinders University have discovered microplastics in blue mussels and intertidal water at popular beaches in South Australia. The study found that single-use plastic was the main source of pollution, with concentrations four times higher near larger towns and cities.
Fossil analysis reveals mollusk communities were resilient to major climatic shifts but struggled under human-induced changes, highlighting the need for conservation efforts.
Researchers have developed an eco-friendly and reusable solution for removing toxic synthetic dyes from wastewater using nanocomposite-based hydrogels. The new material, made from carboxymethyl cellulose (CMC) and graphene oxide, demonstrates high adsorption capacities and retains its effectiveness even after multiple cycles of use.
A Washington State University study found that many Americans believe poverty, not race, is the root cause of environmental inequality. However, research shows that Black communities statistically suffer from environmental problems more than white communities of similar income levels.
A new study finds that fracking is linked to poor birth outcomes and contaminants in public drinking water. The research, which analyzed data from Pennsylvania between 2006 and 2015, shows a significant increase in preterm births and low birth weight among infants exposed to fracking-related chemicals.
A new study published in Ecotoxicology and Environmental Safety reveals that microplastics in the Cauvery River may be causing growth defects in fish, including skeletal deformities and DNA damage. The study found that pollutants from slow-flowing and stagnant sites caused significant harm to zebrafish embryos.
Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.
Researchers at UCF have identified 116 new gene variants in sea turtles that may protect them from a tumor-causing disease. The discovery sheds light on the role of MHC class I alleles in potentially safeguarding sea turtles against fibropapillomatosis.
A recent study reveals alarming levels of plastic pollution in the Arctic Ocean, affecting ecosystems and potentially exacerbating climate change. Plastic debris from rivers, air, and shipping has reached all spheres of the Arctic, including the seafloor, remote beaches, and even ice and snow.
The five-year grant aims to develop electrobiology techniques that enable applications like living sensors to quickly detect environmental pollutants. The project will involve multiple disciplines, including synthetic biology, protein engineering, soft materials, microsystems integration, and machine learning.
Researchers used machine learning to predict the most important factors underlying heavy metal pollution remediation in biochar-treated soils. Biochar nitrogen content and application rate were found to be the most crucial features in determining HM immobilization, with soil properties also playing a significant role.
A team of high school students, led by science teacher Rebecca Bushway, designed an inexpensive filter attachment that removes lead from tap water. The filter uses a biodegradable plastic cartridge with a built-in indicator that turns the water yellow when lead is present.
A team of researchers discovered that combining food-grade plant extracts like okra and aloe can effectively remove microplastics from wastewater. The most effective combination was found to be okra paired with fenugreek in ocean water, while okra paired with tamarind worked best for freshwater samples.
Researchers found a wetland plant capable of reducing PFAS in soil and water, improving filtration efficiency. The study suggests using floating reed beds to increase PFAS removal rates, highlighting the potential for phyto-extraction as a remediation strategy.
A new study suggests that the majority of ocean plastics are on the seafloor or difficult to monitor, with an estimated 540 million metric tons trapped on land. The research estimates that large plastics and microplastics account for only a small percentage of total ocean plastic waste.
Researchers at KAUST used drones to track dye plumes in coastal waters, providing insights into the dispersion of materials in the water column and along the coast. The study demonstrated the potential of unmanned aerial vehicles for monitoring time-sensitive events and capturing rapidly developing processes.
A new study by University of Maryland scientists has developed a five-stage scale to track the progression of salt pollution in freshwater streams and rivers. The researchers found that road salts combined with other pollutants create
The study found that superlinear scaling occurs in aquatic ecosystems of larger watersheds, releasing carbon back into the atmosphere. Smaller watersheds are less effective at filtering pollutants and mitigating nonpoint source pollution.
Researchers at Stanford University developed an electrochemical sulfur oxidation process that can transform wastewater into valuable materials. The technology has the potential to power renewable energy-powered wastewater treatment, creating drinkable water.
A new study reveals that marine organisms attach themselves to plastics and are transported by marine currents, contributing to the introduction of non-native species. The research found diverse marine life attached to plastic debris, including bryozoans, which could become invasive and alter ecosystems.
A new study analyzes sediment cores from the North Sea, showing a significant accumulation of pollutants since the industrial revolution. The researchers found that the deposition of pollutants is linked to fine sediments transported by currents, causing a strong accumulation on the seabed.
Researchers in Acadia National Park found that regulations reducing atmospheric sulfur have led to a partial recovery of algae ecosystems, despite ongoing climate change impacts. Clear-water lakes like Jordan Pond are more sensitive to warming than brown-water lakes like Seal Cove Pond, leading to slower recovery rates.
Research by Oregon State University scientists has found that tiny tire particles inhibit growth and cause adverse behavioral changes in organisms in freshwater and coastal estuary ecosystems. The findings suggest that even at current environmental levels of tire-related pollution, aquatic ecosystems may be experiencing negative impacts.
A global study reveals that freshwater lake ecosystems are being damaged by salt concentrations below government-protective thresholds. The loss of zooplankton triggers a cascade effect causing an increase in algae, potentially altering nutrient cycling and water quality.
A recent global study found that more than a quarter of the world's rivers had pharmaceutical concentrations at potentially toxic levels. The study, which included data from over 258 rivers across seven continents, also revealed concurrent contamination by multiple classes of pharmaceuticals.
A new study by Tel Aviv University researchers found that microplastics absorb and concentrate toxic organic substances, increasing their toxicity by a factor of 10. This may lead to severe impact on human health due to contaminated food and drink.
Monitoring projects have identified a vast array of contaminants in urban stormwater, including tire- and vehicle-derived chemicals, PFAS, phosphorous, metals, and more. Researchers are exploring various strategies to address this issue, such as rain gardens, permeable pavement, and reducing chemical usage at the source.
A new study found concentrations of pharmaceuticals at potentially toxic levels in over a quarter of the world's rivers, including major waterways like the Thames and Amazon. The research highlights the need for increased monitoring to mitigate environmental impacts.
A new study from the University of Waterloo provides a roadmap for faster improvements in water quality by tackling nitrogen legacies. The research recommends six steps to address this critical issue, which has persisted for decades due to excess nitrogen fertilizers.
A new Dartmouth-led study found that antimony and other metals are associated with lower birthweight, while some metals show group- and sex-dependent associations. The research suggests that reducing exposure to these metals could help prevent harmful effects on fetal growth.