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Related Experiment Video

Updated: Oct 29, 2025

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris
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Microplastics pollution on Colombian Central Caribbean beaches.

Nelson Rangel-Buitrago1, Harry Arroyo-Olarte2, Jorge Trilleras2

  • 1Programa de Física, Facultad de Ciencias Básicas, Universidad del Atlántico, Puerto Colombia, Atlántico, Colombia; Programa de Biologia, Facultad de Ciencias Básicas, Universidad del Atlántico, Puerto Colombia, Atlántico, Colombia.

Marine Pollution Bulletin
|July 5, 2021
PubMed
Summary

Microplastic pollution is a serious concern on Colombia's Central Caribbean Coast. This study reveals high microplastic levels, with fibers being the most common type found on beaches.

Keywords:
CaribbeanCoefficient of Microplastic Impact (CMPI)ColombiaEnvironmental Status Index (ESI)MicroplasticsMicroplastics Pollution Index (MPPI)

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Area of Science:

  • Environmental Science
  • Marine Biology
  • Pollution Studies

Background:

  • Microplastics (MPs) are a growing environmental concern globally.
  • Previous litter studies on Colombia's Central Caribbean Coast lacked detailed MP analysis.
  • This research addresses the knowledge gap regarding MP typology, magnitude, and distribution in this region.

Purpose of the Study:

  • To conduct a baseline study of microplastic pollution on 23 beaches along Colombia's Central Caribbean Coast.
  • To develop and apply novel indices (MPPI, CMPI, ESI) for assessing microplastic impact.
  • To map and analyze the distribution and typology of microplastics.

Main Methods:

  • Developed and applied the Microplastics Pollution Index (MPPI) and Coefficient of Microplastic Impact (CMPI).
  • Utilized the Environmental Status Index (ESI) and integrated it through sector analysis.
  • Employed Agglomerative Hierarchical Clustering, Multidimensional Scaling, and Principal Components Analysis for mapping and statistical analysis.

Main Results:

  • Microplastic abundances ranged from 557 to 2457 MPs/kg, comparable to global averages.
  • The MPPI classified 8 beaches as "Moderate," 10 as "High," and 5 as "Very High" in pollution levels.
  • Microplastic fibers constituted 83% of the total microplastics found across the studied beaches.

Conclusions:

  • Microplastic pollution is a significant issue on the Central Colombian Caribbean Coast.
  • The developed indices provide a robust framework for assessing and comparing microplastic pollution.
  • Microplastic fibers are the predominant form of pollution, indicating potential sources that require further investigation.