Microplastics in the marine environment-POSTER SESSION

[CEST2019_00487] A methodological protocol to extract microplastics from river sediments (bed, bank and floodplain)
by Prume J., Schömann E.-M., Chifflard P., Koch M.

Identifying and quantifying the entry of microplastics into the environment is fundamental to develop effective mitigation strategies. So far, microplastic research has mainly focused on marine environments and large rivers. However, it is the small-scale rivers systems, often adjacent to agricultural areas and waste water treatment plants, which have been suggested to play an important role in the entry of microplastics to aquatic habitats. Therefore, the aim of our ongoing research is to map the Hessian river Lahn, exemplary as small-scale river system, in high resolution to assess microplastic pollution and to identify sources. As river sediments differ from marine sediments, a different methodological protocol is required. Here, we present a methodological protocol to purify samples from the river bed, bank and flood plain and show first results of microplastic pollution. These results indicate that small-scale rivers act as (possibly temporary) sink for terrestrial microplastics.

Thursday
Poster presentation in Microplastics in the marine environment-POSTER SESSION
[CEST2019_00110] Do polyethylene terephthalate microparticles (PET-µPs) affect the oxidative status of the clam Ruditapes philippinarum?
by Parolini M., Bacenetti J., Cavaliere, A., De Felice B., Sugni M., Orsi L., Ortenzi M.A.

Microplastics represent a major concern in the marine ecosystems because of their widespread distribution and potential hazard towards organisms. In the present study we investigated the effects induced by two concentrations of micronized polyethylene terephthalate microparticles (PET-µPs) on the oxidative status of the clam Ruditapes philippinarum. Although PET-µPs were ingested and egested by organisms, they did not imbalance the oxidative status and did not cause oxidative damage on clam digestive gland. Our results suggest a low risk related to PET-µPs towards clams, at least at the tested concentrations and for short-term exposure periods.

Thursday
Poster presentation in Microplastics in the marine environment-POSTER SESSION