Overview
- A peer‑reviewed Environment International study using a source‑to‑sea transect found pathogenic and antimicrobial‑resistant bacteria on all tested microplastics, including bio‑beads, nurdles and polystyrene.
- Metagenomic analysis identified over 100 unique antimicrobial‑resistance genes on plastic biofilms, with some pathogens increasing in prevalence downstream.
- Polystyrene and nurdles showed stronger AMR signatures than wood or glass, pointing to material‑specific risk and monitoring priorities.
- The researchers recommend gloves for beach cleans, targeted surveillance of high‑risk plastics, and attention to exposure near shellfish and aquaculture sites.
- A recent bio‑bead wash‑up at Camber Sands has sharpened calls for water company transparency, improved retention and storage, and evaluation of safer treatment alternatives.