Articles tagged with Environmental Chemistry
A UC Riverside paper has opened the door to understanding more about life's beginnings and early evolution. The study weaves together data from ancient rocks, genomic studies of modern organisms, and recent breakthroughs about the evolving chemistry of the early oceans, atmosphere, and continents.
Chemists at the University of Konstanz create novel materials by balancing contrasting conditions using a single reaction vessel. The resulting pigment@TiO2 materials exhibit synergistic properties suitable for battery applications.
Scientists at Tokyo Tech create innovative catalysts by encapsulating copper nanoparticles within hydrophobic porous silicate crystals, significantly enhancing catalytic activity and methanol production. The breakthrough paves the way for more efficient methanol synthesis from CO2.
A new study reveals that the East Palestine train accident released inorganic pollutants into the atmosphere, which were found in precipitation across a large geographical area covering at least 16 states. The pollutants also reached southern Canada and North Carolina, posing significant risks to aquatic flora and fauna.
A new study reveals the underappreciated role of inorganic Zinc particles in ocean cycles, crucial for phytoplankton productivity and carbon sequestration. The Southern Ocean's unique processes regulate the global Zinc cycle, with implications for a changing climate.
Nitrous-oxide emissions have increased by 40% over the past four decades, resulting in accelerating atmospheric accumulation of this potent greenhouse gas. Agricultural production is the largest source of emissions, and improving practices can help reduce nitrous-oxide emissions and water pollution.
A new method discovered by researchers has the potential to reduce agricultural nitrous oxide emissions in Europe by one-third. The solution involves growing special bacteria that can convert harmful nitrous oxide into harmless nitrogen gas, reducing greenhouse gas emissions.
Engineers have modelled a new way to recycle polystyrene that could make the material reusable. The technique uses pyrolysis to break down polystyrene into parts that can be reformed into new pieces of the material, reducing energy consumption and increasing yield.
Researchers have documented 75 locations across northern Alaska's Brooks Range where remote streams and rivers are turning from crystal clear blue to cloudy orange. The staining is likely caused by minerals exposed by thawing permafrost, resulting in highly acidic and corrosive conditions.
Researchers from Trinity College Dublin unveil a deeper understanding of bastnäsite and rare earth carbonates' formation, influenced by multiple factors including temperature, time, and host grain solubility. This discovery could reshape the tech industry's reliance on rare earth elements.
A new model combines wildfire smoke forecasts and ground-based sensor data to help public health officials plan targeted interventions. The researchers found that urban and rural communities already burdened by pollution face higher air pollution levels during unexpected smoke events.
A new study led by Dr. Assaf Hochman uncovers ozone's impact on atmospheric stability and temperature distribution on Proxima Centauri b, a habitable exoplanet tantalizingly close to Earth's solar system. The research highlights the importance of considering interactive ozone in understanding Earth-like exoplanets.
Scientists have discovered DDT-related chemicals in deep-sea fish near Catalina Island, raising concerns about the persistence of toxic pollution in marine ecosystems. The contaminants are settling on the seafloor, potentially harming wildlife and human health if ingested.
A new AI method developed by Swedish researchers can identify toxic substances based on their chemical structure, potentially replacing animal testing. The method has been shown to be more accurate and broadly applicable than existing computational tools, offering a promising alternative for environmental research and authorities.
A new study led by Harvard researchers found that the EPA underestimates methane emissions from landfills and urban areas, with emissions being on median 77% higher than estimated. The team's high-resolution map of methane emissions highlights the importance of pinpointing sources of these emissions.
Researchers found widespread data gaps on environmental effects, emphasizing the need for updated information requirements in REACH legislation. They propose utilizing cross-species knowledge and grouping substances to increase understanding.
Researchers at Linköping University discovered a specific reaction called oxidative dearomatisation that transforms biomolecules into millions of diverse molecules, making organic matter resistant to degradation. This process explains the substantial organic carbon sinks on our planet, reducing atmospheric carbon dioxide levels.
Researchers at TU Wien have created a nanofabric filter using waste cellulose that can efficiently remove hazardous dyes from water. The filter, called 'nanoweb', uses a high surface area to bind organic dye molecules, resulting in a 95% removal rate.
A study published in Nature reveals that oxidative dearomatization is the key mechanism behind this transformation, resulting in millions of diverse molecules with stable structures. This process allows the organic matter to persist for long periods, preventing it from rapidly returning to the atmosphere.
Researchers from the University of Oldenburg aim to propagate stony corals via natural reproduction and grow out young corals in aquaria for a more sustainable coral trade. If successful, this method could boost wild coral protection and reduce reliance on expensive export restrictions.
A Bay Area monitoring network has recorded a small but steady decrease in CO2 emissions, primarily due to the adoption of electric vehicles, which translates to a yearly drop in vehicle emission rates. However, to meet California's ambitious carbon reduction goals, the yearly decrease needs to be much greater.
Researchers at Tohoku University developed a high-performance magnesium-air battery that utilizes water activation and carbon cathodes. The paper-based battery achieved impressive performance results and demonstrated its versatility in wearable devices such as pulse oximeters and GPS sensors.
Mark Torres' $612,930 grant aims to analyze variations in river water chemistry using machine learning approaches and bridge the gap between theory and practical application. The project will inform policy decisions and drive sustainable solutions for safeguarding our planet's waterways.
Researchers found that forests in Japan's Quercus serrata trees trap approximately 420 trillion airborne microplastics per year, acting as a terrestrial sink. The study used alkaline extraction to detect microplastics adhering to leaf surfaces, revealing a higher number than previously estimated.
Researchers at the University of Illinois have developed a novel electrochemical process to extract precious metals, including gold and platinum group metals, from discarded electronics and low-grade ores. This method uses less energy and fewer chemical materials than current methods, producing high-purity metals with minimal waste.
Chalmers University researchers create a sustainable method for extracting pure gold from scrap using biodiesel and malonamide. This process replaces toxic chemicals and fossil solvents, offering benefits for the metal industry and reducing greenhouse gas emissions.
Researchers found that crawfish can accumulate high levels of toxic lithium in their bodies, which can be passed to humans through the food chain. The study highlights the potential risks of lithium contamination in the environment and emphasizes the need for responsible disposal practices.
Researchers are developing nonmetallic quantum dots to identify and separate pollutants from water, including pesticides, surfactants, metal ions, antibiotics, and dyes. The dots can also be used to break down pollutants and help treat oil spills.
A recent study by UFZ and AWI researchers found significant accumulations of plastics in the North Pacific Ocean, extending far beyond the Great Pacific Garbage Patch. Microplastics were also discovered in a remote marine protected area northwest of Hawaii, challenging previous assumptions about their distribution.
Researchers found associations between prenatal vitamin and metal exposures and epigenetic aging biomarkers in early life. A one standard deviation increase in essential metals was associated with lower Horvath EAA at birth, while arsenic was linked to greater EAA at birth and in childhood.
Researchers at Oregon State University have identified a metal-organic framework that can completely remove and break down glyphosate, a widely used herbicide. The material, Sc-TBAPy, shows faster adsorption and photodegradation of glyphosate compared to other MOFs.
Researchers found stable tuna mercury concentrations worldwide from 1971 to 2022, except for a slight increase in the northwestern Pacific Ocean. The team suggests upward mixing of 'legacy' mercury as a possible cause, which could take up to 25 years to influence oceanic levels.
Researchers have created fluorescent, colour-changing dyes that can visualise multiple distinct biological environments using only one dye. These dyes enable 'time travel' within cells by allowing scientists to distinguish between cellular and delivery vessel environments in real-time. The breakthrough has significant implications for ...
Scientists have developed a cage-like molecule to trap sulfate in water, which could help control its concentration in health, industry, and environmental management. The molecular trap can be prepared inexpensively from off-the-shelf chemicals and has potential applications in medicine, such as treating cystic fibrosis.
Researchers at BESSY II used RIXS and DFT simulations to analyze the electronic structures of fumarate, maleate, and succinate dianions. The study found that maleate is potentially less stable than fumarate and succinate due to its delocalized HOMO orbital, which can lead to weaker binding with molecules or ions.
Researchers propose new statistical index to detect river ecosystem changes, potentially preventing tragedies like the Oder River crisis. The developed index is more versatile and responsive to variations in individual parameter values.
Scientists have found a shallow soda lake in western Canada that meets the conditions required for life to emerge, including high levels of dissolved phosphate. This discovery provides new support for the idea that life could have emerged from lakes on early Earth, around 4 billion years ago.
A team at Pohang University of Science & Technology has successfully created the world's first plumber's nightmare structure in block copolymers, a complex configuration where polymer chain ends coalesce inward. This achievement showcases the potential for self-assembly in block copolymers and opens up new possibilities for materializi...
Researchers from Kumamoto University found that freshwater phytoplankton in Lake Baikal produce DMSP abundantly, which acts as an osmolyte and protects the phytoplankton against osmotic pressure. The study reveals a cryoprotective role of DMSP for the survival of planktons in freshwater ice.
A dry-packaged hydrating facial mask made of biobased and sustainable materials provides a more environmentally friendly alternative to traditional sheet masks. The mask's ingredients, including plant-based polylactic acid and green tea extract, deliver moisture and nutrients while promoting antioxidant properties.
Researchers used a new technique to count tiny plastic particles in bottled water, finding an average of 240,000 detectable fragments per liter, 10 times greater than previous estimates. Nanoplastics, smaller than microplastics, can pass through the bloodstream and reach organs like the heart and brain.
Research using a high-resolution climate model found that global warming amplifies the strength of typhoons in East Asia, leading to increased intense rainfall and powerful storms. The study suggests that continued escalation of global warming will result in stronger typhoons and more extensive occurrences of extreme precipitation events.
Researchers found that live Christmas trees emit monoterpenes, which can react with ozone and form new compounds like formaldehyde. The concentration of VOCs decreases over time, but can still impact people sensitive to them.
Researchers discovered traces of sunscreen agents in Arctic snow, with highest concentrations found in winter. The study suggests these contaminants are transported from lower latitudes via atmospheric circulation.
Scientists created a new type of foam packaging from upcycled cardboard waste, which is stronger and more insulating than traditional plastic-based cushioning. The biodegradable foam has excellent thermal insulation, energy-absorbing properties, and outstanding cushioning capabilities.
Miniaturized electrochemical sensors offer low-cost, time-efficient analysis and high specificity and sensitivity for toxic heavy metal detection. However, limitations in selectivity, detail, and interference by foreign species hinder on-site analysis.
The study shows that PFAS-treated gear repels water but not oil or hydraulic fluid, posing a flammability hazard to firefighters. The research also reveals that PFAS-free gear performs similarly in terms of strength, but loses its oil-repelling properties after aging tests.
The global EV battery industry is projected to exceed 600 MtCO2eq in emissions by 2050, mainly due to energy-intensive mining and refining processes. Shifting to less CO2-intensive battery chemistries like LFP could reduce emissions by 20%.
A team of NTU scientists found a mix of harmful microorganisms, including Labyrinthulaceae and Lyngbya, that can poison marine life. However, they also discovered potential plastic-eating bacteria, such as Muricauda and Halomonas, which could aid in plastic degradation.
Researchers at Texas A&M University have developed a miniature, injectable glucose biosensor and wearable device that enables user-friendly, minimally-invasive continuous glucose monitoring. The device addresses challenges associated with existing CGMs, including size and skin tone compatibility.
A research team employed deep learning techniques to scrutinize dam operation patterns, achieving remarkable accuracy in forecasting dam water levels. The study demonstrates the potential of an artificial intelligence model trained on extensive big data to surpass conventional physical models.
Researchers analyzed microplastics in mountain clouds and found they can modify particles in ways that enable them to affect cloud formation. The study also found that clouds can increase the presence of toxic metals on these particles.
Researchers from GIST have developed a new electrode using Schottky junctions to overcome the conductance limit of active catalysts, achieving high-performance water splitting and hydrogen evolution reactions. The electrode demonstrated remarkable current density and durability during continuous operation for 10 days.
A research team developed a multi-model projection system using the self-calibrating Effective Drought Index to predict drought and recommend cumulative precipitation for recovery. The required rainfall for drought recovery was estimated at 170 mm, 310 mm, and 440 mm for March, April, and May respectively.
A new study reveals that C4 crops are significantly less sensitive to ozone pollution than C3 crops, with potential implications for improving crop productivity and resilience. The research suggests that C4 bioenergy feedstocks can maintain performance in regions with high ozone levels.
Researchers at the University of California - Berkeley have developed a simple and green way to convert flared natural gas into economically valuable liquids, mostly alcohols like methanol and ethanol. The process utilizes a porous metal-organic framework (MOF) that mimics the oxygenation reaction in plants and animals.
Researchers developed a waterproof device that captures and enriches dissolved compounds in seawater, revealing diverse elemental compositions and unknown molecular structures, with potential applications for drug discovery and ecosystem health monitoring.
A new study reveals that methylmercury uptake in phytoplankton is influenced by the presence of thiols in water. Thiols bind mercury strongly, limiting its availability to organisms. This process can result in dramatic enrichment of methylmercury levels in aquatic environments.
A University of Houston research team integrated machine learning with SHAP analysis to identify the city's air pollution sources more accurately. The study found that the oil and gas industry had the highest impact on emissions, while shortwave radiation and relative humidity were key influencing factors for overall ozone concentration.
Researchers have developed catalysts that combine iridium and ruthenium, preserving their excellent attributes and improving activity and stability. The study also explores the importance of carefully selecting candidate materials and retaining superior properties even after nanostructure formation.