Articles tagged with Heavy Metal Pollution
Researchers have developed a novel method to make a green-synthesised MOF using a scalable water-based process, which reduces estimated production cost and retains strong lead-capture performance. The material has been tested on real-world water samples, showing remarkable efficiency in removing lead from chemically complex solutions.
A greenhouse study suggests that converting rice straw into biochar could provide greater environmental and food safety benefits than directly incorporating untreated straw. Biochar treatment reduced copper and lead accumulation, improved soil properties, and produced high grain biomass, while avoiding air pollution from open burning.
A study analyzing dragonfly larvae found moderate to high-risk mercury sites across 30 US National Wildlife Refuges, posing threats to fish, wildlife, and human health. The research provides baseline measurements for tracking change and informs future management actions to reduce mercury bioaccumulation.
A new collaborative study evaluates potential dust control measures for the Great Salt Lake, considering effectiveness, cost, water demand, maintenance needs, and ecological impacts. The analysis emphasizes the importance of long-term planning, sustained maintenance, and careful consideration of unintended consequences.
A recent study from the University at Buffalo has found that cigarette filters release up to two dozen microfibers upon first contact with water, posing a significant threat to wildlife and human health. The researchers estimated that over 71 million to 1.4 billion cigarette butt microfibers are released into New York waters every day.
A study by researchers at the University of Seville found that 100% of children aged 0-2 years had exposure to environmental pollutants, with arsenic being the most neurotoxic element. The study highlights the need for routine biomonitoring programs to track exposure and its impact on early childhood development.
A new study published in the Journal of Hazardous Materials found that small home appliances with electric heating coils and brushed DC motors emit large quantities of ultrafine particles, posing significant health hazards. The study suggests that children are at a higher risk due to their smaller airway diameters.
New research reveals that large-scale livestock farming accelerates the spread of antibiotic resistance and heavy metal contamination in agricultural soils. Dried poultry manure, once applied to vegetable plots for food crops, drives a dramatic surge in dangerous antibiotic resistance genes.
Researchers track benthic nutrient fluxes using a new device called CAROSEL, which measures nitrogen released from sediments in real-time. The findings reveal daily rhythms in oxygen fluxes and highlight the importance of understanding sediment-water interactions in managing aquatic ecosystems.
Researchers at Binghamton University are testing the long-term stability and environmental effects of perovskite solar cells, a more environmentally friendly option, to prevent lead leakage and pollution. The study aims to improve the durability and recyclability of solar panels, enabling widespread adoption of renewable energy sources.
A study reveals that the Mar Menor lagoon has sediments with excessive levels of lead, arsenic, and other toxic metals accumulated over centuries due to mining activities. The research highlights the ongoing risk these metals pose to aquatic organisms and ecosystems, even after the closure of mines in the 1990s.
As Arctic permafrost thaws, geochemical reactions unleash metals like cadmium, harming fish and disrupting ecosystems. The Salmon River's transformation poses indirect threats to Indigenous communities and other species.
Researchers have found that Black Mambas accumulate heavy metals such as lead and mercury in their scales. This allows them to serve as a natural indicator of environmental pollution levels. By analyzing scale clippings from these snakes, scientists can accurately measure spatial patterns of pollution without harming the snakes.
New research from Tulane University finds that global riverine mercury pollution has more than doubled since the pre-industrial era, with primary drivers including wastewater discharge, soil erosion, and industrial activities. This increase poses significant health risks to humans and wildlife through consumption of contaminated fish.
A new study uses preserved plants and animals from natural history museums to track pollution trends over two centuries. Researchers found significant changes in pollutant levels between specimens collected in the 19th and 20th centuries, highlighting the impact of industrial activity on human health.
A new handheld device called E-Tongue can analyze water samples and detect lead contamination, providing users with a color-coded reading and concentration value. The researchers tested the device through a citizen science project across four Massachusetts towns, finding it effective in detecting lead in drinking water.
Researchers found that atmospheric mercury levels have decreased significantly due to reduced human-caused emissions, mainly attributed to the Minamata Convention. The study also revealed that soil emissions now make up a larger fraction of total mercury emissions, with re-emissions from soil posing a future challenge.
A new study from Texas A&M University found that residents' knowledge of environmental health risks is the most important factor in their decision to take a home buyout. Residents who live in areas with high levels of risk and are more concerned about environmental risks are more willing to accept a buyout.
Researchers reconstructed metal pollution history in São Paulo using sediment cores, revealing three periods of increasing pollution. The study highlights the importance of sediments as environmental indicators and offers insights for conservation efforts.
Researchers at University at Albany found a near full recovery from metal pollution in Adirondack surface waters since the enactment of the Clean Air Act. The study analyzed sediment samples and found a greater than 90% reduction in metal contamination across four ponds.
Researchers found that common urban pollinator plants like white clover and bindweed accumulate toxic metals from contaminated soils, posing a risk to bee health. To mitigate this, scientists recommend testing soil for metals before planting wildflowers and choosing plant species suitable for the local conditions.
A novel approach uses a biomass-based carbon aerogel to efficiently treat oily water and sludge, reducing energy consumption and carbon emissions. The material's photothermal conversion characteristics enable effective dehydration of oily pollutants.
A study from the University of Utah reveals that urban environments can significantly contaminate natural airborne dust particles with hazardous elements. The research found higher concentrations of toxic metals such as zinc, calcium, molybdenum, cadmium, copper, lead, cobalt, and arsenic in urban dust compared to natural dust.
A new study published in The Journals of Gerontology: Series A found that long-term exposure to high levels of air pollution is associated with lower scores in key cognitive abilities, especially language skills. Exposure to nitrogen dioxide and fine particulate matter was linked to poorer language performance.
Researchers at Lund University found that hedgehogs collected from urban areas in Sweden contained high concentrations of lead, pesticides, and other pollutants. The study provides an environmental fingerprint of urban ecosystems, highlighting the need for increased monitoring and reduced use of synthetic materials.
A new study found that adding green-synthesised iron nanoparticles (G-nFe) to pig manure neutralises bioavailable copper, reducing environmental risks. The process reduces exchangeable cooper by 66.8%, carbonate-bound copper by 47.5%.
Scientists at NTU Singapore have developed a solar-powered method to transform sewage sludge into green hydrogen and single-cell protein, reducing environmental damage and creating renewable energy and sustainable food. The three-step process recovers 91.4% of organic carbon and converts 63% into single-cell protein without producing h...
A study published in Aging (Aging-US) found associations between several environmental exposures and epigenetic aging in a large sample of US adults. Cadmium, lead, and cotinine were linked to faster biological aging, increasing the risk of age-related diseases such as heart disease and cancer.
A new University of Texas at Arlington study reveals high concentrations of microplastics in bird lungs, with average particles per species and gram of lung tissue measured. The study highlights the urgent need to address plastic pollution and its far-reaching impacts on ecosystem health and human health.
A study by Virginia Tech researchers found that electric vehicles generally produce less non-exhaust emissions than gasoline-powered vehicles when driving in city conditions. The research also highlights the environmental benefits of regenerative braking, which reduces brake abrasion emissions.
Researchers at Northwestern University have developed a specialized sponge that can collect and release metals, plastics, and nutrients from stormwater pollution. The technology uses nanoparticles to attract pollutants and then releases them at different pH levels, making it a potential low-cost solution for environmental remediation.
A recent study suggests that prolonged exposure to low-dose traffic-derived PM2.5 particles can cause fatty liver disorder in mice. The study found changes in liver function, inflammation, and scar tissue formation, highlighting the potential health risks of air pollution on the liver.
A new study published in Environmental DNA revealed that insecticides and fungicides are the main factors affecting biodiversity in UK waters. The AI technology analyzed water and biofilm samples from 52 freshwater lakes, identifying key links between pollutants and biodiversity loss.
A Tel Aviv University study finds that microplastic particles are excreted in the feces of marine animals, making them undetectable as plastic. This process can lead to increased carbon and nitrogen levels on the seafloor, promoting algal blooms and disrupting the marine food web.
A new study from Tel Aviv University finds minimal environmental pollution resulting from ancient copper production in King Solomon's Mines, with pollution levels confined to smelting furnaces. Researchers also contradict previous claims of widespread industrial pollution, citing low levels of lead and other metals in soil samples.
A new study from Tulane University analyzed 260 honey samples from 48 states for toxic metals, finding regional differences in contamination levels. The highest arsenic and cobalt levels were found in Pacific Northwest and Southeastern honeys, respectively, while lead was detected in Carolinas honeys.
A new study by Ohio State University researchers has detected lead pollution in ice cores from the Guliya ice cap in northwestern Tibet, revealing a significant change in its origin beginning in 1974. This shift was likely caused by stricter emissions policies implemented in the US during that time period.
A study by USC researchers estimates that 850,000 pounds of toxic metals have been released into the environment in the Western US from 2009-2021. The team found a range of heavy metals, including chromium and cadmium used as corrosion inhibitors, as well as arsenic in phosphate ores.
Researchers found that wildfire suppressant products can contribute to elevated metal levels in the environment. The study tested 14 fire suppression products and found that they contained at least one metal exceeding EPA's Maximum Contaminant Level regulations for drinking water.
Climate change is releasing more contaminants into the ocean, affecting marine ecosystems. Human activities and natural sources are mobilizing and increasing contaminant flows due to rising sea levels and melting glaciers.
Industrial fishing practices in tropical and subtropical waters release high levels of methylmercury into the ocean. The majority of this mercury is found in large pelagic fish like tuna, which are then consumed by humans. This can lead to developmental delays in children and impaired cardiovascular health in adults.
Researchers have developed a sugar-like polymer that traps heavy metals within insoluble clumps for easy removal, demonstrating potential as a recyclable material. The polymer showed high efficiency in removing cadmium and lead from river water, with minimal impact on other metal ions.
A new study estimates that soil stores substantially more mercury than previously thought, with climate change potentially adding even more. The researchers predict that as temperatures increase, vegetation growth will promote the deposition of mercury in the soil, outweighing current control schemes.
A study by the University of Essex found that oil and gas extraction can cause a nearly 30% decline in species richness near platforms, with pollutants like hydrocarbons up to 10,613% higher within 500m. This has a direct impact on marine invertebrates and food webs.
A recent study by TU Graz found that rail transport contributes significantly to particulate matter emissions, with levels reaching up to 25 micrograms per cubic meter along railway lines. This poses a concern for air quality and soil pollution, particularly in areas with increased braking activity.
Researchers found metal-tolerant trout populations in British and Irish rivers are genetically distinct due to high levels of metal pollution. The lack of genetic diversity in these populations makes them more susceptible to environmental changes.
Researchers at Lawrence Berkeley National Laboratory identified 28 trace metals in secondhand and thirdhand tobacco smoke, including cadmium, arsenic, and chromium. The study found that the predicted indoor air concentration for these metals exceeded California's cancer risk guidelines, highlighting the need to understand their contrib...
A new study by Chalmers University of Technology finds that ship scrubber water discharges caused EUR 680 million in pollution costs between 2014 and 2022. The researchers also found that most shipping companies have already recouped their investments in scrubbers, making cheap heavy fuel oil a more lucrative option.
A new study found that massive flood basalt volcanism drove mass-extinction and disturbance, while extreme climate change and Hg-pollution continued to stress plants long after volcanic activity had ceased. The results show that ferns were robust enough to continue thriving despite mercury poisoning.
A new study finds that warming climate is causing a doubling of copper, zinc, and sulfate concentrations in metal sulfide-rich watersheds in Colorado's mountains. The greatest increases are seen at high altitudes, where natural chemical weathering of bedrock is the source of rising acidity and metals.
A Washington State University-led research team discovered a set of genes in wild bacteria that allow them to survive exposure to nickel, enabling them to thrive in toxic soils. The genetic discovery could inform future bioremediation efforts to return plants to polluted soils.
Research suggests that magnetite particles, found in air pollution, can induce signs and symptoms of Alzheimer's disease. The study exposed mice to fine particles of iron, magnetite, and diesel hydrocarbons, finding that magnetite induced Alzheimer's disease pathologies, including neuronal cell loss and amyloid plaque formation.
Researchers found that permeable pavements can capture tire-associated chemicals, resulting in a 68% average reduction of the toxic contaminant 6PPD-quinone. The technology has vast potential to protect salmon populations and human health.
An international team of scientists found evidence of ancient heavy metal pollution in Antarctic ice cores from early Andean cultures and Spanish Colonial mining dating back to the 13th century. The study, published in Science of the Total Environment, reveals significant lead and other toxic metals were released into the atmosphere as...
A new study led by Dr. Tyler Frankel has identified cancer-causing contaminants in sediments and fish in a Chesapeake Bay tributary, highlighting the importance of considering exposure pathways in conservation strategies.
Brazilian researchers developed a 3D zinc oxide photocatalyst that efficiently degrades sertraline, an emerging pollutant contaminating groundwater. The material's high photocatalytic activity and stability make it suitable for wastewater treatment.
Air quality in São Paulo fell far below standards and WHO recommendations despite reduced emissions during the pandemic. The study identified four main sources of aerosols: heavy vehicles, soil dust, light vehicles, and local sources, including industrial emissions and fires.
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.
Two studies found moderate to high risk scores for cancers and non-cancer health effects associated with lead, arsenic, and cadmium exposure. Exposure to these heavy metals through contaminated food is linked to increased risks of various types of cancer, including lung, bladder, skin, and prostate cancers.
Researchers are working to better understand and reduce the health risks associated with mercury use in artisanal and small-scale gold mining. A new approach has been piloted, which can help reduce mercury emissions in these mines.