Is algal bloom the main culprit behind microplastics?

KAIST researchers found that algal bloom conditions can speed up microplastic formation on plastic surfaces.

Using pond samples and 42-day LDPE analysis, they observed more cyanobacteria and other bacteria, forming thicker biofilms and more extracellular polymeric substances.

Metagenomic, spectroscopic, and microscopic analyses showed faster oxidation and microcrack development on the plastic surface.

The study suggests eutrophic waters may alter plastisphere ecosystems and accelerate plastic weathering, offering clues for pollution research.