Petranta Kotorou’s research while affiliated with Wageningen University & Research and other places

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (1)


Microplastic Effect Tests Should Use a Standard Heterogeneous Mixture: Multifarious Impacts among 16 Benthic Invertebrate Species Detected under Ecologically Relevant Test Conditions
  • Article

November 2023

·

132 Reads

·

7 Citations

Environmental Science and Technology

·

Matthias Hof

·

Petranta Kotorou

·

[...]

·

Microplastics require a risk assessment framework that takes their multidimensionality into account while exclusively considering robust data. Therefore, effect tests should use a diverse, environmentally relevant microplastic (ERMP) standard material that adheres to high-quality requirements. In this study, we provide chronic dose–effect relationships and effect thresholds for 16 benthic species exposed to ERMP. The ERMP was created from plastic items collected from natural sources and cryogenically milled to represent the diversity of microplastics. The test design met 20 previously published quality assurance and quality control criteria. Adverse effect thresholds (EC10) were determined at ERMP concentrations of 0.11 ± 0.17% sediment dry weight (Gammarus pulex, growth), 0.49 ± 0.68% sediment dry weight (Lumbriculus variegatus, growth), and 1.90 ± 1.08% sediment dry weight (L. variegatus, reproduction). A positive effect of microplastics, such as decreased mortality, was observed for Cerastoderma edule (EC10 = 0.021 ± 0.027% sediment dry weight) and Sphaerium corneum (EC10 = 7.67 ± 3.41% sediment dry weight), respectively. Several of these laboratory-based single-species effect thresholds for ERMP occurred at concentrations lower than those found in the environment. For other species, no significant effects were detected up to an ERMP dose of 10% dry weight.

Citations (1)


... Therefore, further studies are needed to understand the actual uptake distribution of MPs by aquatic invertebrates and their toxic effects when exposed to mixtures formed by different size, shape, and polymer density. A recent study by de Ruijter et al., (2023) assessed the effects of environmentally relevant mixtures of aged MPs to benthic organisms using laboratory single-species tests and showed that the growth and reproduction of some species (e.g., Lumbriculus variegatus, Gammarus pulex) may be affected at environmentally relevant concentrations of MPs. Therefore, more studies are needed to characterize the effects of aged MP mixtures with a wider range of benthic species to prevent uncertainties and biases in the extrapolation of the observed outcomes to field conditions. ...

Reference:

Fate and effects of an environmentally relevant mixture of microplastics in simple freshwater microcosms
Microplastic Effect Tests Should Use a Standard Heterogeneous Mixture: Multifarious Impacts among 16 Benthic Invertebrate Species Detected under Ecologically Relevant Test Conditions
  • Citing Article
  • November 2023

Environmental Science and Technology