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61,005 resultsShowing papers similar to The effect of biodegradable plastics on microplastic accumulation and exposure
ClearPredictive 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.
How to quantify the impact biodegradable materials may have?
Researchers at Wageningen examined how to quantify microplastic accumulation in nature to evaluate the impact of biodegradable polymers, noting that a comprehensive, universally applicable methodology is currently lacking. They presented predictive modelling approaches to examine whether biodegradable alternatives can reduce environmental microplastic burdens.
Case studies that show the predictive modelling of microplastic accumulation in the natural environment
This study used predictive modeling to compare microplastic accumulation from biodegradable versus conventional polymers in natural environments, finding that biodegradable polymers lead to shorter environmental residence times but that accumulation dynamics depend heavily on polymer type and environmental conditions.
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 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.
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.
A 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.
New advances to assess biodegradation and toxicity of alternative environmentally friendly polymers
Researchers developed new methods to assess the biodegradation rates and ecotoxicity of alternative polymers including biobased, recycled, and biodegradable plastics, addressing a gap in risk assessment frameworks focused primarily on conventional plastics. Results showed biodegradability varied greatly by polymer type and environmental conditions, and alternative plastics still exhibited measurable toxicity during degradation.
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.
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.
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.
Degradation efficiency of biodegradable plastics in subtropical open-air and marine environments: Implications for plastic pollution
Researchers tested several types of biodegradable plastics in real outdoor and ocean environments in Hong Kong and found that most failed to break down significantly over the study period. This means biodegradable plastics marketed as eco-friendly alternatives can still fragment into microplastics that persist in the environment and potentially enter the food chain, posing similar risks to conventional plastics.
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.
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.
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.
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.
Biodegradability standards for carrier bags and plastic films in aquatic environments: a critical review
Researchers critically reviewed existing biodegradability standards for carrier bags and plastic films in aquatic environments and found that current testing protocols do not adequately reflect real-world marine or freshwater conditions. The study suggests that labeling plastics as "biodegradable" may be misleading, since degradation rates vary dramatically depending on temperature, oxygen levels, and microbial communities present in natural water bodies.
A review on the occurrence and influence of biodegradable microplastics in soil ecosystems: Are biodegradable plastics substitute or threat?
This review examines whether biodegradable plastics are a genuine solution to plastic pollution or may create new problems in soil ecosystems. Researchers found that many biodegradable plastics do not fully break down under natural conditions and may actually fragment into microplastics faster than conventional plastics, potentially posing additional threats to soil health.
Novel insight into the in-situ study of biodegradable microplastics in soil aggregates
An in-situ study of biodegradable microplastic degradation under real environmental conditions revealed insights into how quickly these materials actually break down compared to lab predictions. The findings show that biodegradation rates in nature often differ significantly from those measured in controlled experiments.
Accumulation and release of organic pollutants by conventional and biodegradable microplastics in the marine environment
Researchers examined the ability of conventional and biodegradable microplastics in the marine environment to accumulate and release organic pollutants, finding that both types adsorb contaminants but differ in their release profiles, with biodegradable plastics potentially offering lower long-term pollutant persistence.
Accumulation and release of organic pollutants by conventional and biodegradable microplastics in the marine environment
Researchers compared how biodegradable and conventional microplastics accumulate and release organic pollutants in natural seawater over 64 days. They found that biodegradable plastics like PHA and PBS accumulated similar types and levels of pollutants as conventional polyethylene. The study suggests that switching to biodegradable plastics may not reduce the risk of these materials acting as carriers for toxic chemicals in the marine environment.
Biodegradable microplastics (BMPs): a new cause for concern?
This review examined whether biodegradable microplastics present new environmental hazards, finding that many biodegradable polymers degrade slowly under real environmental conditions and can release toxic additives, and that the assumption of biodegradability does not eliminate microplastic pollution risks unless composting conditions are actively managed.
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.