Artículo Original: Plantas de tratamiento de aguas residuales municipales como fuentes de contaminación de microplásticos

Los microplásticos (MPs) representan una amenaza para los ecosistemas acuáticos y terrestres desde los años sesenta, debido a la intensificación comercial. Se cree que las plantas de tratamiento de aguas residuales (PTARs) son una fuente importante de contaminación de MPs para el medio ambiente, pero se desconoce su grado de contribución. Este estudio tiene como objetivo caracterizar el aporte de MPs desde dos PTARs ubicadas en la cuenca del lago Atitlán. Se recolectaron ocho muestras de agua en los efluentes (E) y cinco muestras en los lodos estabilizados (L) de las PTARs de Panajachel (PAN) y San Marcos La Laguna (SML) durante los meses de abril a junio del 2022. Se identificaron 1,913 partículas de MPs según morfotipo y tamaño, siendo más abundantes en los lodos estabilizados (74%; 0.02 - 81.2 partículas g-1) que en los efluentes (26%, 0.3- 42.3 partículas L-1). Las fibras y los fragmentos fueron los más abundantes. Los resultados de este estudio evidencian que las PTARs son una fuente de descarga de MPs en el lago Atitlán. Se requiere de estudios adicionales para comprender el destino final de estos contaminantes dentro de la cuenca del lago Atitlán y los impactos ambientales.

• Publication year

  2025

• Venue

  Revista Científica

• Publication date

  2025-10-03

• Fields of study

  Not labeled

• Identifiers
  DOI 10.54495/rev.cientifica.v33i1.493
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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