Articles tagged with Heavy Metal Pollution
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A new method developed by Rice University scientists uses a high-temperature electrothermal process to remove multiple pollutants simultaneously, including heavy metals and organic contaminants. The process leaves soil particle size and mineral composition unchanged, while improving water infiltration rate and nutrient availability.
Researchers found that micro- and meso-plastics accumulate heavy metals, with copper and chromium being prominent contaminants. The study reveals how surface features like holes, biofilms, and mineral crystals facilitate the collection of pollutants on plastic particles.
Scientists at Chalmers University of Technology have created a new method for removing mercury from concentrated sulphuric acid, reducing levels by more than 90%. This innovation could lead to reduced mercury emissions and the production of high-purity, non-toxic products in industries such as mining and metal refining.
Researchers link Kawasaki disease to ultrafine aerosols rich in metals from intensive farming and urban pollution. Exposure to high levels of metals is associated with increased incidence of the disease.
A new study by Duke University researchers reveals that the amount of toxic elements leaching out of coal ash depends largely on its nanoscale structure. The discovery highlights the complexity of coal ash as a material and emphasizes the need for closer examination of fine details within the ash to understand environmental risks.
A study by University of Technology Sydney found that plants can remove 97% of toxic compounds, including cancer-causing pollutants, from indoor air in just eight hours. This breakthrough discovery highlights the critical role played by indoor plants and green walls in improving air quality.
A study by University of Alabama at Birmingham researchers reveals that cadmium-induced inflammation increases the severity and mortality of lung infections. The findings suggest that targeting the regulation of PPAR-gamma in macrophages may protect against severe pneumonia.
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.
A team of researchers has developed a highly sensitive imaging method to detect heavy metals like cadmium in cocoa beans. The study found that cadmium accumulates primarily in the outer shell of the bean and can be reduced through improved processing steps, which could minimize exposure.
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.
A team of researchers from Pusan National University evaluated the efficacy of calcite and phosphogypsum in reducing arsenate ions' availability for crops. Phosphogypsum was found to be more effective in immobilizing arsenic in soil due to a substitution mechanism involving sulfate and hydrogen arsenate ions.
A team of researchers developed an efficient strategy to recycle lead from discarded car batteries, creating a new market for recycled lead in high-tech equipment. The resulting photodetectors show excellent stability and fast response speeds, with potential applications in optical communication, chemical analysis, and imaging.
Measurements taken by University of Copenhagen researchers show high air pollution levels in the Copenhagen metro, with ultra-small particles 10-20 times higher than on heavily trafficked streets. The pollution comes mainly from trains' brakes and rails, posing a health risk to frequent users.
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.
New research reveals mangroves can withstand heavy metal contamination without adverse health impacts. Grey mangroves were found to tolerate high lead and zinc levels in contaminated sediment, highlighting their role in stabilising polluted regions.
A CSU study found that racially segregated communities are exposed to a more concentrated form of air pollution, including toxic metals like lead and cadmium. This disparity is linked to systemic racial injustices and targeted emissions reductions can help reduce exposure.
The study found that scrubber discharge water accounts for up to 9% of certain carcinogenic and environmentally harmful substances in the Baltic Sea. This increase is partly due to a significant growth in ships equipped with scrubbers, which has tripled since the study was carried out.
A WWII shipwreck in the North Sea is leaking hazardous pollutants like explosives and heavy metals, influencing marine microbiology and geochemistry. The study found varying concentrations of toxic substances depending on distance from the wreck, with highest metal levels near the coal bunker.
A study by Duke University and Appalachian State University reveals that coal ash pollution has been more persistent and widespread than previously known, with large quantities deposited in lake sediments. The contaminants can leach into the aquatic food chain, posing chronic risks to ecosystems.
A Kennesaw State University assistant professor of biology is studying how urbanization affects heavy metal concentrations in starlings. Preliminary data suggests that starlings nesting at urban sites have higher lead concentrations, which could provide insights into the environmental impact of urbanization.
A University of Illinois study found tomatoes in Chicago backyard gardens have low levels of lead, making them relatively safe for consumption. However, improper soil handling and lack of washing can still pose health risks. Researchers recommend minimizing dust with heavy mulch and careful fruit washing to safely grow tomatoes.
Research has found that some metal-rich suspended sediment from the disaster remains in circulation, causing ongoing impacts on water quality and aquatic life. The study estimates it will take about a decade for the lake to substantially flush out the finest fraction of these tailings solids.
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.
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.
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.
A new study from McGill University finds that people living near regions prone to wildfires may have a higher incidence of lung cancer and brain tumors. Exposure to carcinogenic wildfire pollutants on a chronic basis increases the risk of certain cancers, according to researchers.
A team of researchers from Nanyang Technological University and National Parks Board in Singapore has discovered that certain tropical plant species can absorb and remove toxic heavy metals and metalloids from contaminated soil. The study identified 12 plant species effective for phytoremediation, including Cow Grass, Brake Fern, and I...
A new strain of algae has been identified that can produce green hydrogen gas via photosynthesis on an industrial scale. This breakthrough could accelerate the transition to environmentally friendly green hydrogen and reduce pollution. The researchers also plan to develop methods to increase production rates and reduce costs.
Researchers found that T. domingensis absorbed more iron than H. tiliaceus, making it a promising phytoremediation technique for rehabilitating contaminated water and soil. The study's findings could help mitigate the environmental damage caused by the 2015 iron mine tailings dam disaster in Brazil.
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 new study found that heavy traffic near roads is a significant contributor to water pollution, with contaminants from vehicle fluids, paints, and tires affecting nearby rivers. The study suggests that these pollutants come from road surfaces and are transported to watersheds through stormwater run-off.
Researchers at Flinders University have developed an all-organic polymer battery with a cell voltage of 2.8V, which could replace traditional metal-based batteries for more environmentally friendly options. The new technology aims to create fully biodegradable batteries with high capacity and durability.
Scientists have discovered characteristic breakpoints that alter pollutant concentrations in rivers, impacting global water security. The research sheds light on the behavior of aquatic pollutants in large river systems, including India's River Ganga.
A new study from the University of Illinois reveals that nearly all soil samples in Chicago contain high levels of lead, with some areas reaching up to 3,000 ppm. The findings highlight the need for further monitoring and mitigation efforts to address environmental justice concerns.
Researchers at Skoltech developed an algorithm that aggregates and maps environmental data to predict and visually map the quality of water, soil, or air. The solution uses interpolation to fill gaps in data and produces detailed maps with high resolution.
The report reveals that electronic waste generated in the region rose by 50% between 2010 and 2019, with only 3.2% collected and safely managed. The regional e-waste total jumped from 1.7 Mt to 2.5 Mt, with Russia generating the most e-waste.
Cadmium exposure has been linked to an increased risk of developing allergies, particularly asthma, in children. Researchers found that gut bacteria over-produce an enzyme degrading vitamin D after cadmium ingestion, mimicking a deficiency, leading to enhanced allergic reactions.
Research found that warming water temperatures and browning increase methylmercury transfer to phytoplankton, reducing essential polyunsaturated fatty acids. This impacts the food chain, exposing higher organisms to toxic mercury and compromising nutrition, posing a threat to human health.
Research at Florida Atlantic University found that green sea turtles in polluted environments have impaired immune systems, leading to increased disease susceptibility. The study suggests a positive feedback loop where pollution compromises immunity, making turtles more prone to Green Turtle Fibropapillomatosis.
An analysis by the University of Basel has revealed that mercury enters seawater primarily through gas exchange, not rainfall. The study found that approximately half of the mercury in the ocean originates from gaseous emissions, rather than precipitation.
A Hebrew University study reveals that as worldwide lead production increases, so do rates of lead absorption in people, leading to toxic effects. The research uses ancient human bones to show the close relationship between lead production and human exposure.
Scientists at Ural Federal University and RAS developed a technology to process metallurgical slag into valuable materials such as cast iron and Portland cement clinker. The technology eliminates the problem of environmental pollution by industrial enterprises.
A review of previous scientific studies on pollutant release from sediments during extreme flood events reveals significant risks to human and environmental health. The study highlights the need for good river management to address long-term consequences of pollutants in riverbeds.
Researchers found high levels of lead, antimony, and copper in disposable face masks, posing a risk to human health and the environment. The study highlights the need for stricter regulations on mask production and disposal to mitigate these risks.
Researchers analyzed Tipuana tree rings and bark to measure environmental pollution levels, finding reduced levels of cadmium, copper, nickel, and lead over the past three decades. The study suggests a correlation with declining gasoline emissions in Brazil.
A recent UCSB study analyzed whole-body fish samples from oil-and-gas production platforms and natural sites for heavy metal pollutants. The results showed that most elements were consistently present at both types of locations, with some species exhibiting varying levels of pollutants between juveniles and adults.
A study reveals that heavy metal pollution from smelters causes a decline in wild bee communities, with up to 50% of dead bees found in heavily contaminated sites. The findings highlight the need for careful restoration of polluted areas to protect these vital pollinators.
A new method for tracing zinc pollution in the atmosphere has been developed, which can identify the source of the pollution. This breakthrough could improve pollution monitoring and inform national and international strategies to reduce zinc pollution.
The Stanford Environmental Molecular Science Institute will investigate how heavy metal contamination interacts with solid surfaces and bacteria using various molecular-level tools. The institute aims to understand the structure and properties of pollutants like arsenic, chromium, and lead at a fundamental level.
A report by the North American Commission for Environmental Cooperation identifies industrial plants in the US as the main polluters of dioxin in Nunavut, with sources including municipal waste incinerators and cement kilns. The findings provide a new tool for governments to clamp down on polluters and control emissions.
The book analyzes the accumulative effects of industrial development over 40 years, showing changes in pollution patterns and potential risks to agricultural food production. Historical studies of heavy metal pollution are used to illustrate how spatial patterns have changed over time.
Researchers create molecular-level studies of pollutant-catalyst interactions using X-ray diffraction and neutron scattering techniques. Their findings may lead to improved pollution traps by optimizing catalyst design and surface area.
A study found that African dust is a major factor affecting southeast U.S. air quality, with up to half of breathable particles in the air originating from Africa. The dust can push total airborne particles above the EPA's Clean Air Act limit on certain days.
Researchers at the University of Cincinnati present success stories in bioremediation and risk assessment, including bacteria strains capable of breaking down toxic compounds like N-heterocyclics and PAHs. A team develops ultra-trace methods to detect metal pollutants, improving accurate risk assessment.
Researchers at the University of Georgia have developed a new test for detecting DNA strand breakage in freshwater mussels, which can serve as an early warning system for pollution. The study found significant strand breakage in mussels exposed to lead, but no damage after long-term exposure.