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Microplastics: Degradation properties of polymers in the environment
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This study examined the degradation pathways and rates of various plastic polymers in environmental settings, addressing the gap between labeled biodegradability and actual environmental persistence. Understanding how different plastics fragment and degrade is essential for predicting their long-term fate as microplastics in soil and aquatic environments.
The accumulation of plastics leaked into the environment achieve a high perception in the last years. It is uncontroversial that often an uncontrolled, high consumption of plastic products and a poor waste management resulted in plastic findings all over in the environment. However, less is known about the relevant pathways and fate of plastic in the environment. Especially plastic fragments smaller 5 mmm, so called microplastics, achieve a high attention, because their amount and risks arising from these fragments are still unknown. The basic mechanisms of plastic or more precise, of different polymer degradation processes are often not considered, resulting in unrealistic statements. For generation of fundamental understanding of this problem we developed in the last years a fast thermoanalytical method for identification and mass quantification of microplastics in complex samples. The presentation will also give a short introduction about polymer degradation.
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Biodegradable plastics in the air and soil environment: Low degradation rate and high microplastics formation
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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.
Current studies on the degradation of microplastics in the terrestrial and aquatic ecosystem
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This review summarizes current studies on microplastic degradation in terrestrial and aquatic ecosystems, covering physical, chemical, and biological degradation pathways and the fate of breakdown products. The review highlights the persistence of microplastics and the limited progress toward efficient degradation under natural environmental conditions.
A Mini Review on Recent Insight into Degradation of Environmental Plastics
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This mini-review summarizes current knowledge on how plastics break down in the environment to form microplastics, covering mechanical, photochemical, thermal, and biological degradation pathways, and identifies key gaps in understanding how environmental conditions and plastic properties influence degradation rates.
Review on the Biological Degradation of Polymers in Various Environments
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This review provides an overview of how biodegradable plastics degrade under different environmental conditions including soil, freshwater, marine, and composting environments. It finds that biodegradability is a material property strongly dependent on environmental conditions, and that many so-called biodegradable plastics degrade far more slowly in nature than in controlled test conditions.
Biodegradation of macro- and micro-plastics in environment: A review on mechanism, toxicity, and future perspectives.
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This review examined mechanisms, toxicology, and future perspectives for biodegradation of macro- and micro-plastics, cataloguing microbial species capable of polymer degradation, discussing enzymatic pathways, and identifying key limitations including slow degradation rates and the need for pretreatment to accelerate breakdown in environmental settings.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.