Ranking environmental degradation trends of plastic marine debris based on physical properties and molecular structure
Open accessAbstract
As plastic marine debris continues to accumulate in the oceans, many important questions surround this global dilemma. In particular, how many descriptors would be necessary to model the degradation behavior of ocean plastics or understand if degradation is possible? Here, we report a data-driven approach to elucidate degradation trends of plastic debris by linking abiotic and biotic degradation behavior in seawater with physical properties and molecular structures. The results reveal a hierarchy of predictors to quantify surface erosion as well as combinations of features, like glass transition temperature and hydrophobicity, to classify ocean plastics into fast, medium, and slow degradation categories. Furthermore, to account for weathering and environmental factors, two equations model the influence of seawater temperature and mechanical forces.
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Heteroatom-containing plastics are most probably easier to degrade because enzymes can attack the functional groups formed by the heteroatoms.
“Heteroatom-containing plastics are most probably easier to degrade, because enzymes can attack the functional groups that are formed by the heteroatoms (see also the study by Min et al. (2020) 60 on predictors for PMD surface erosion).”
From The fate of plastic in the ocean environment – a minireview (2021) · cites this paper as [60]
Other studies found weight loss of plastics exposed to microbial communities in the laboratory or the environment.
“Other studies found weight loss of plastics exposed to microbial communities in the laboratory or the environment.60”
From The fate of plastic in the ocean environment – a minireview (2021) · cites this paper as [60]
The availability of nutrients, the surface to volume ratio of PMD particles, and the molecular formulation of PMD and additive admixture are likely to influence PMD degradability.
“The availability of nutrients, the surface to volume ratio of PMD particles, and the molecular formulation of the PMD and additive admixture are likely to inuence PMD degradability, too.60,114,134”
From The fate of plastic in the ocean environment – a minireview (2021) · cites this paper as [60]
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- Authors
- Min, K., Cuiffi, J. D., & Mathers, R. T.
- Affiliations
- Pennsylvania State University (US)
- Corresponding author
- Mathers, Robert T.
- Venue
- Nature Communications
- Published
- 2020-02-05
- Volume
- 11
- Issue
- 1
- Pages
- 727-727
- ISSN
- 2041-1723 (ISSN-L)
- PMC
- PMC7002677
- OpenAlex
- W3005439932
- Cited by
- 506
- References
- 70
- Citations by year
- 2026: 49 · 2025: 75 · 2024: 82 · 2023: 92 · 2022: 97 · 2021: 80 · 2020: 31
- FWCI
- 18.50
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Nature Communications (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Funders
- University of Pennsylvania
- Pennsylvania State University
- Materials Research Institute, Pennsylvania State University
- Institute for Computational and Data Sciences, Pennsylvania State University
- Division of Materials Research
- Topics
- Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Keywords
- marine plastic debris, plastic degradation, ocean plastic, surface erosion, glass transition temperature, hydrophobicity, molecular structure, physical properties, seawater temperature, mechanical weathering, biodegradation, abiotic degradation
- MeSH terms
- Machine Learning, Biodegradation, Environmental, Biotransformation, Models, Theoretical, Molecular Weight, Plastics, Seawater, Temperature, Water Pollutants, Chemical, Hydrophobic and Hydrophilic Interactions, Databases, Chemical
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