We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Comprehending the complexity of microplastic organismal exposures and effects, to improve testing frameworks
AI summary Read the abstract
This review argues that standard toxicity testing frameworks are poorly suited to capture the complexity of microplastic exposures in real environments, proposing improved testing approaches that account for particle mixtures, realistic concentrations, and species-specific feeding behaviors.
Microplastics (MPs) have been identified as a threat to global ecosystems. Current projections indicate that the negative impacts of MPs will increase in the environment. Traditional toxicity testing does not account for the diversity of MP particles, the inherent diversity in potential exposure routes, and complex impacts in exposed organisms. Here we present and discuss factors influencing organismal exposure to MPs driven by fate and behavior of MPs in different environmental matrices and organisms behavioral niches. We then provide a structured classification of potential effects of MPs, chemical or particulate, generic or specific to MPs. Using these analyses, we discuss appropriateness and limitations of applying traditional, chemical-based ecotoxicity testing for the study of MPs, and propose practical recommendations and guidelines. Future laboratory based studies can be improved to increase understanding of potential real world effects of MPs by careful selection of appropriate exposure systems and conditions, test organism, MP characteristics, endpoints and required controls. We build upon recommendations provided in previous publications and complement them with a list of parameters and practical information that should be checked and/or reported in MP studies.
More Papers Like This
Towards more ecologically relevant investigations of the impacts of microplastic pollution in freshwater ecosystems
AI summary Read the abstract
This review argues that microplastic research in freshwater ecosystems lacks ecological realism, calling for studies that account for realistic exposure concentrations, particle mixtures, and multi-species interactions rather than single-species laboratory tests.
Towards harmonized ecotoxicological effect assessment of micro- and nanoplastics in aquatic systems
AI summary Read the abstract
This review highlights the methodological problems in current microplastic and nanoplastic toxicity research on freshwater organisms, including the use of unrealistic plastic types, poor test designs, and environmentally irrelevant doses. The authors propose a harmonized framework for testing that better reflects real-world conditions, including more realistic particle types and exposure levels. Better standardized research is essential for accurately assessing the true environmental and health risks of micro and nanoplastic pollution.
Addressing the complexities of microplastic particles and their effects from the laboratory
AI summary Read the abstract
This review addressed the complexity of microplastic pollution including the enormous variability in particle properties and environmental contexts that makes it difficult to assess effects on organisms and ecosystems. The authors argued for a more systematic framework to characterize and communicate microplastic hazard that accounts for this complexity rather than relying on oversimplified models.
Gaps in aquatic toxicological studies of microplastics
AI summary Read the abstract
This paper identifies key gaps in aquatic toxicological studies of microplastics, arguing that most studies use unrealistic concentrations or particle types and calling for more ecologically relevant experimental designs to better assess real-world risks.
Microplastics and nanoplastics toxicity assays: A revision towards to environmental-relevance in water environment
AI summary Read the abstract
This review evaluates how well current laboratory toxicity tests for micro and nanoplastics reflect real-world conditions in water environments. The authors found that most studies use pristine plastic particles at concentrations far higher than what is found in nature, limiting the relevance of their findings. The paper calls for more environmentally realistic testing approaches to better understand the actual risks of plastic particle pollution.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.