News in Pollution & Remediation – Page 3
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NewsMagnetic biochar gel helps keep arsenic and antimony out of rice
A new study reports a promising strategy for mining-impacted regions: a magnetic silicon-enriched biochar gel that can immobilize both arsenic and antimony in contaminated paddy soil and reduce their accumulation in rice grains.
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NewsNew study uncovers why the Arctic’s rivers are rusting
Scientists have identified the two biggest reasons that once-pristine rivers across the Arctic are growing cloudy with toxic orange iron particles that smother insects and suffocate fish. As the climate warms, a layer of Arctic soil that had been frozen for millennia has begun to thaw.
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NewsSpraying leaves with carbon dots boosts rice yield and blocks toxic cadmium
In a full-season field test, a nanoscale spray activated a two-part defense system in rice, slashing grain cadmium content by nearly 50% while improving the harvest.
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NewsSunlight and PVC pipes create a hidden driver of antibiotic resistance
New research shows that chemicals leaching from everyday PVC—especially after exposure to sunlight—can dramatically speed up the spread of resistance genes between bacteria. The effect was strongest at low to moderate concentrations, where the leachate triggered bacterial stress responses without killing the microbes.
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NewsThe fog is alive - with tiny helpers
What if fog isn’t just misty air, but a living ecosystem? This question hung over cloud researcher Thi Thuong Thuong Cao. As a PhD student at Arizona State University, her curiosity led her from knocking on the doors of microbiologists and chemists, to sampling fog before sunrise in Pennsylvania, to ...
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NewsSoil science reimagined: From farmland to the final frontier
A new perspective offers a compelling call to reimagine the future of soil science. The article outlines a conceptual framework for “nontraditional soil science,” encompassing diverse fields from urban engineering to forensic soil analysis and planetary exploration.
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NewsSelf-renewing bacteria offer new hope for heavy metal cleanup
Scientists have revealed a powerful bacterial defense strategy against Cd toxicity. The team found that Stenotrophomonas sp. H225 sheds Cd-laden cell wall fragments and rebuilds new protective layers through a process involving the mtgA gene.
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NewsHow river DNA can track fish, frogs, fungi and human feces — all at once
A single scoop of water from an Irish river revealed evidence not only of Ireland’s only frog species, but also signs of the dreaded B. dendrobatidis fungus, marking the first time this devastating amphibian disease has been spotted in the country and exposing a previously unknown risk to Ireland’s frog population.
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NewsResearchers uncover hidden health risks from urban airborne microbes
Researchers have discovered that seemingly insignificant microbial components in the air, including bacteria, fungi, viruses and cellular debris, pose a long-overlooked health hazard. Bacterial endotoxins can trigger inflammatory responses in the human respiratory system in nearly 20% of cases.
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News‘Living plastic’ activates and self-destructs on command
Living plastics that self-destruct on command incorporate activatable, plastic-degrading microbes alongside the polymers. The latest study used two bacterial strains that worked together and completely broke down the material within just six days, without making microplastics.
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NewsSignificant rise in valley fever cases in El Paso linked to extreme weather and dust
A new study has identified a significant rise in Valley fever cases in El Paso over the past decade and found strong connections between the disease and extreme weather, wind and airborne dust.
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NewsCrab shell by-products could help regulate the marine lifetime of biodegradable plastics
Researchers show that crab shell by-products can reduce the breakdown rate of biodegradable plastics in seawater by altering the microbial communities that colonize their surfaces, known as the plastisphere.
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NewsAmbient air pollution is associated with respiratory infection burden in the first year of life
Ambient air pollution is associated with respiratory infection burden in the first year of life, according to preliminary findings from the Immune Development in Early Life (IDEaL) Rome Cohort.
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NewsHot spring microbiomes could transform industrial CO2 waste into valuable products
Researchers found that microbiomes inhabiting terrestrial hot springs are naturally adapted to conditions that closely resemble industrial waste streams: high temperatures, elevated concentrations of CO2, and chemically challenging environments.
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NewsIs asphalt bad for our health? And can algae help?
Scientists studying how asphalt emissions impact respiratory health are also working on less toxic, lower-emitting asphalt formulations. One project involves growing a strain of algae that could reduce VOC emissions using wastewater from a treatment plant.
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NewsViruses enhance sulfamethoxazole removal in wetlands by modulating bacteria-phage interactions
A new study examines the role of viruses in sulfamethoxazole (SMX) removal in constructed wetlands. The research demonstrates that the addition of phage-concentrated solutions (PCS) enhances the degradation of SMX by enriching SMX-degrading bacteria.
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NewsEngineered dual-bacterial sensors turn chemical signals into electricity
Most bacterial information transmission is done via electricity. While electricity-emitting bacteria exist, manipulating them into useful sensors has been quite challenging. Researchers recently developed a flexible bioelectrical sensor system called electroactive co-culture sensing system.
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NewsGraphitized biochar rewires soil microbes to accelerate pollutant breakdown in rice paddies
A new study reveals that a specially engineered form of biochar can dramatically enhance the natural ability of soil microbes to break down pollutants in rice paddies, offering a promising strategy for cleaner and more sustainable agriculture.
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NewsHong Kong’s waters at risk from over-the-counter drug pollution
A recent study of Hong Kong’s river and estuary systems has uncovered an overlooked major source of water pollution: common over-the-counter (OTC) drugs. Accessible, everyday OTC drugs accounted for up to 85% of pharmaceutical pollution in these waters during the wet season.
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NewsDon’t build the engine, grow it: biohybrid miniature robots using living organisms
By fusing living organisms like bacteria, algae, and insects with synthetic payloads, researchers are creating living biohybrid miniature robots that self-fuel, self-repair, and navigate environments that would paralyze a rigid silicon chip.
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