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Nano and microplastic interactions with freshwater biota - Current knowledge, challenges and future solutions
Anna Kukkola1, Stefan Krause2, Iseult Lynch3
1School of Geography, Earth and Environmental Sciences, University of Birmingham, B15 2TT Birmingham, United Kingdom.
Environment International
|March 18, 2021
Summary
Nano- and microplastics pose risks to freshwater life, but lab and field studies differ. This review bridges these gaps, recommending standardized methods for accurate nano- and microplastic toxicity assessments.
Area of Science:
- Environmental Science
- Ecotoxicology
- Aquatic Biology
Background:
- Understanding nano- and microplastic (NMP) impacts on freshwater ecosystems is crucial.
- Significant discrepancies exist between laboratory and field study findings on NMP effects.
- Current knowledge integration is hindered by differing methodologies and NMP types studied.
Purpose of the Study:
- To synthesize current knowledge on NMP impacts on freshwater biota.
- To identify and address discrepancies between laboratory and field research.
- To propose solutions for more comparable and reliable future studies.
Main Methods:
- Comprehensive literature review of field and laboratory studies on NMP in freshwater.
- Analysis of prevalent NMP morphologies and exposure conditions in both study types.
- Identification of key differences in NMP types (e.g., fibers vs. particles) and toxicity testing parameters.
Main Results:
- Field studies show fibers are the most common NMP morphology, while lab studies predominantly use particles.
- Discrepancies in NMP morphology, chemical composition, and ageing complicate direct comparisons.
- Lack of standardized toxicity endpoints across trophic levels limits data comparability.
Conclusions:
- Standardizing NMP research methodologies is essential for accurate risk assessment.
- Future field studies should analyze biota constituents, while lab studies must test environmentally relevant NMP factors.
- Developing standardized toxicity endpoints for microbes, producers, and consumers will enhance NMP impact understanding.
