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61,005 resultsShowing papers similar to Hazardous state lifetimes of biodegradable plastics in natural environments
ClearA review of biodegradation and formation of biodegradable microplastics in soil and freshwater environments
Researchers reviewed how biodegradable plastics break down in soil and freshwater, finding that incomplete degradation by microorganisms can still produce tiny biodegradable microplastic particles that persist in the environment — meaning "biodegradable" doesn't always mean safe or fast-disappearing.
Evaluation of the degradation from micro to nanoplastics from biodegradable bags in marine conditions
Researchers evaluated how biodegradable plastic bags degrade into micro- and nanoplastics under environmental conditions, comparing them to conventional plastics. The study found that even biodegradable materials generate persistent micro- and nanoplastic particles under real-world conditions.
Biodegradable plastics in the marine environment: a potential source of risk?
This review examines whether biodegradable plastics offer a genuine solution to marine plastic pollution, finding that their environmental behavior depends heavily on specific conditions and that they may still pose risks in marine environments where decomposition is slow.
The effect of biodegradable plastics on microplastic accumulation and exposure
Researchers developed a comprehensive method to quantify microplastic accumulation from biodegradable polymers in natural environments, examining whether biodegradable alternatives actually reduce plastic loads compared to conventional polymers under real-world outdoor conditions.
Can biodegradable polymers make microplastics?
Researchers investigated whether biodegradable polymers can form microplastics during their intended use and degradation, finding that several biodegradable materials do indeed fragment into micro- and nanoscale particles before fully mineralizing. The study raises important questions about whether "biodegradable" plastics fully solve the microplastic problem.
What can we learn from biodegradation of natural polymers for regulation?
This study examined biodegradation patterns of natural polymers and found that many would be classified as persistent under current regulatory frameworks, arguing that mineralization alone is insufficient for assessing synthetic polymer persistence and that environmental risk assessment needs refinement.
Evaluation of the degradation from micro to nanoplastics from biodegradable bags in marine conditions
Researchers evaluated how biodegradable plastic bags degrade from the micro to nano scale under environmental conditions, testing whether commercial biodegradable plastics fully decompose or generate persistent nanoplastic particles. Results showed biodegradable bags produced nanoplastic particles during degradation, challenging the assumption that biodegradable label guarantees complete environmental breakdown.
Biodegradable plastics in the air and soil environment: Low degradation rate and high microplastics formation
Researchers compared the degradation rates of various biodegradable plastic types in natural air and soil environments over time, finding that most degraded slowly under ambient conditions and generated substantial microplastic fragments, with non-certified biodegradable plastics showing essentially no degradation.
Solution or Pollution? A paradigm shifts in understanding the fate and threats of biodegradable plastics in the marine environment
This review challenges the assumption that biodegradable plastics are inherently eco-friendly by examining their degradation behavior in marine environments. Researchers found that biodegradable plastics often require specific conditions to break down and can themselves become sources of microplastic pollution when those conditions are not met. The study highlights a significant research gap in understanding the fate of biodegradable nano- and pico-plastics in marine ecosystems.
Aging of biodegradable blended plastic generates microplastics and attached bacterial communities in air and aqueous environments
Researchers aged biodegradable plastic blends in both air and water, finding that fragmentation into microplastics was inevitable before complete degradation, and that the resulting particles attracted distinct bacterial communities compared to conventional plastics. The study raises concerns that biodegradable plastics may still pose environmental risks during the microplastic phase of their breakdown.
Experimental modeling of biodegradable microplastics
Researchers experimentally modeled the formation of biodegradable microplastics by subjecting polymers to environmental degradation factors, characterizing the resulting particles' surface properties and their capacity to adsorb toxic chemicals and microorganisms relevant to ecological risk assessment.
Biodegradable Nanoplastics: An Overlooked Polluting Terra Incognita Towards Global Plastic Risk Assessment?
Researchers reviewed the environmental risks posed by biodegradable nanoplastics, arguing that the shift toward biodegradable plastics has introduced an undermonitored pollutant whose global occurrence, fate, and ecological risk remain poorly understood, and called for coordinated full-chain risk assessment and improved detection frameworks.
Predictive modelling to assess the accumulation of biodegradable and non-biodegradable microplastics in the natural environment.
Researchers developed predictive models to assess the accumulation of both biodegradable and non-biodegradable microplastics in natural environments, addressing the lack of a comprehensive methodology for quantifying MP buildup and enabling comparisons of environmental impact across polymer types.
A progress update on the biological effects of biodegradable microplastics on soil and ocean environment: A perfect substitute or new threat?
This review examines whether biodegradable plastics, often marketed as eco-friendly alternatives, actually break down safely in the environment. The evidence shows that biodegradable plastics often fragment into microplastics rather than fully decomposing, and these biodegradable microplastics can harm soil organisms, marine life, and disrupt nutrient cycles. The findings suggest that simply switching to biodegradable plastics may not solve the microplastic pollution problem and could introduce new environmental risks.
Biodegradable Microplastics: A Review on the Interaction with Pollutants and Influence to Organisms
This review examines the environmental behavior and toxicity of biodegradable microplastics, noting that natural conditions rarely allow complete degradation and that biodegradable plastics may fragment into microplastics more rapidly than conventional plastics. Under some conditions biodegradable microplastics may pose greater risks to organisms than conventional microplastics, particularly in combination with adsorbed pollutants.
Potential environmental impacts of bioplastic degradation in natural marine environments: A comprehensive review
This review examines the environmental impacts of biodegradable plastics degrading in marine environments, finding that their microscale breakdown raises significant concerns about contributing to microplastic pollution rather than eliminating it. The authors conclude that biodegradable plastics require reevaluation as petroleum-based plastic substitutes given the incomplete understanding of their behavior at the microscale in marine ecosystems.
Analysis of the microplastic emission potential of a starch-based biodegradable plastic material
Researchers developed a method to assess the microplastic emission potential of biodegradable starch-based plastics under environmental conditions, finding that even materials labeled biodegradable can fragment into persistent microplastic particles depending on environmental degradation pathways.
A review on fate and ecotoxicity of biodegradable microplastics in aquatic system: Are biodegradable plastics truly safe for the environment?
This review examines whether biodegradable plastics are truly safe for aquatic environments, finding that they can break down into microplastics faster than conventional plastics and cause comparable or even greater harm to algae, invertebrates, and fish. The findings suggest that switching to biodegradable plastics alone will not solve the microplastic pollution problem, and these particles can still enter the human food chain through contaminated seafood.
Degradation of Biodegradable Single-use Plates and Waste Bags in Terrestrial and Marine Environments
Field experiments found that biodegradable single-use plates and waste bags degraded at very different rates depending on material and environment, with some lasting far longer than expected. Products labeled as biodegradable may still persist and fragment into microplastics in natural marine and terrestrial conditions.
Unravelling the ecological ramifications of biodegradable microplastics in soil environment: A systematic review
Researchers reviewed 85 studies on biodegradable microplastics in soil, finding that when biodegradable plastics fail to fully break down they can disrupt soil structure, nutrient cycling, and microbial life in ways that depend heavily on concentration and plastic type. The review highlights that "biodegradable" plastics are not a simple fix for microplastic pollution in agricultural soils.
Decomposition and fragmentation of conventional and biobased plastic wastes in simulated and real aquatic systems
Researchers tracked the decomposition and fragmentation of conventional and biobased plastics in simulated and real aquatic environments over six months. They found that while biobased materials showed faster initial surface changes, all tested plastics eventually generated micro- and nanoplastic fragments in water. The study provides evidence that even plastics marketed as more environmentally friendly still contribute to microplastic pollution once they enter waterways.
A state-of-the-art review of environmental behavior and potential risks of biodegradable microplastics in soil ecosystems: Comparison with conventional microplastics
This review compares the environmental behavior and risks of biodegradable microplastics with conventional microplastics in soil ecosystems. Researchers found that biodegradable microplastics fragment more readily and their abundant functional groups significantly affect how they transport and interact with other contaminants like heavy metals. The study suggests that biodegradable plastics may pose distinct and potentially underestimated risks to soil health compared to their conventional counterparts.
Biodegradable plastics in aquatic ecosystems: latest findings, research gaps, and recommendations
This review challenges the assumption that biodegradable plastics are harmless to aquatic ecosystems, finding that many materials labeled as biodegradable do not fully break down in natural water environments. Researchers found that these plastics can persist in aquatic settings and pose similar risks to wildlife as conventional plastics, including ingestion and chemical leaching. The study recommends more rigorous testing of biodegradability claims under real-world aquatic conditions.
Biodegradable Microplastics: Environmental Fate and Persistence in Comparison to Micro- and Nanoplastics from Traditional, Non-Degradable Polymers
This review compares biodegradable microplastics with traditional microplastics and finds that while biodegradable versions break down much faster, they still release microplastic-sized particles that can persist in the environment for varying periods. How quickly biodegradable microplastics actually disappear depends heavily on environmental conditions like temperature, moisture, and microbial activity, and lab results often overestimate real-world degradation. The takeaway is that switching to biodegradable plastics helps but does not fully solve the microplastic pollution problem.