Project Facts
Project period: January 2016 - December 2018
Strategic area:
  • Interdisciplinary Research for Good Environmental Status
More Information
Project coordinator:

Annika Jahnke

Secretariat contact:

John Hanus
Tel. +32 (0) 2 626 16 77

Project website: click here to visit

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WEATHER-MIC is one of four approved projects following the 2014 JPI-Oceans Pilot Call on ecological effects of microplastics. Five partners from four European countries form the consortium


  • Use artificial weathering in lab experiments combined with non-target chemical analysis and particle imaging to “fingerprint” weathered plastic particles
  • Investigate how weathering processes of MPs influence their vertical distribution, trophic transfer and toxicity (by affecting size distribution, surface morphology, density, aggregation-flocculation behaviour and microbial biofilm communities)
  • Investigate if the 3D spatial distribution from lab-scale column tests can be extrapolated to field data from the Stockholm Archipelago and Oslo Harbour (using sediment transport models parameterized for MPs)
  • Assess toxic effects of weathered MPs by
    • toxicity tests using OECD guidelines adapted for ecotoxicological testing of MP particles
    • changes in biofilm communities
    • cell-based bioassays with MP leachates to identify modes-of-action and to quantify toxicity
  • Develop new tools to incorporate MP weathering into risk assessment of marine MP pollution

The content of this webpage does not reflect the official opinion of the JPI Oceans. Responsibility for the information and views expressed lies entirely with the project partners.

JPI Oceans   •   Rue du Trône 130, 1050 Brussels, Belgium
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