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61,005 resultsShowing papers similar to Gaps in aquatic toxicological studies of microplastics
ClearStudies of the effects of microplastics on aquatic organisms: What do we know and where should we focus our efforts in the future?
This review critically evaluates published research on microplastic effects on aquatic organisms and identifies significant gaps between laboratory experiments and real-world conditions. Researchers found that most studies use polystyrene spheres at concentrations far higher than those found in the environment, while the most common microplastics in nature are fragments and fibers of other polymer types. The study calls for more environmentally realistic experimental designs to better understand the actual ecological risks of microplastic pollution.
Microplastic exposure studies should be environmentally realistic
Researchers argue that many laboratory studies on microplastic effects use concentrations far higher than what is actually found in the environment, which can lead to misleading conclusions about real-world risks. They call for experiments that better reflect environmental conditions, including realistic particle sizes, shapes, and concentrations. The study emphasizes that more environmentally relevant research is needed to accurately assess the true ecological threat of microplastic pollution.
Towards harmonized ecotoxicological effect assessment of micro- and nanoplastics in aquatic systems
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.
Microplastics and nanoplastics toxicity assays: A revision towards to environmental-relevance in water environment
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.
Towards more ecologically relevant investigations of the impacts of microplastic pollution in freshwater ecosystems
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.
Gaps between Laboratory Experiments and Real-World Exposure: Toxicological Assessment of Microplastics Is Based on Inadequate Evidence
**TLDR:** This review of existing research found that current studies on microplastic toxicity don't match real-world conditions—most lab experiments test single types of plastic particles at high doses for short periods, while people are actually exposed to many different microplastics mixed with other pollutants over long periods of time. The authors argue we need better testing methods that mirror how people actually encounter microplastics in daily life to truly understand the health risks. This research gap makes it hard to know if microplastics are truly dangerous to human health at the levels we're actually exposed to.
Relevant and Realistic Assessments of Micro- and Nanoplastics in the Environment
This paper discusses methodological challenges in microplastic risk assessment, arguing that studies using only clean, uniform lab-prepared particles may not reflect the complex, mixed-type plastic particles actually found in the environment. More realistic experimental conditions are needed to generate data that accurately predicts ecological harm from microplastic pollution.
Constraints and Priorities for Conducting Experimental Exposures of Marine Organisms to Microplastics
Researchers reviewed the design of laboratory microplastic exposure experiments on marine organisms and identified key constraints including unrealistic concentrations, lack of weathered particles, and limited consideration of mixture effects. The study provides guidance on experimental priorities, emphasizing the need for environmentally relevant conditions and standardized methods to produce more reliable and comparable ecotoxicological data.
Ecological and toxicological manifestations of microplastics: current scenario, research gaps, and possible alleviation measures
This review examines the ecological and toxicological effects of microplastics and their associated contaminants across aquatic and terrestrial environments, identifying key knowledge gaps and potential mitigation strategies. The authors emphasize that both physical particle effects and co-transported chemical pollutants pose compounding risks to wildlife and ecosystems.
Effects of microplastics on bivalves: Are experimental settings reflecting conditions in the field?
A critical comparison of experimental microplastic studies on bivalves found that most laboratory studies used particle concentrations far exceeding environmental levels and polymer types that differ from field observations, concluding that many reported toxic effects may not be ecologically relevant and calling for environmentally realistic experimental designs.
Identifying Knowledge Gaps on Ecotoxicological Assessment of Micro/Nanoplastics with Aquatic Keystone Species
This review identifies knowledge gaps in the ecotoxicological assessment of micro- and nanoplastics across aquatic and terrestrial organisms, highlighting inconsistencies in particle characterization, exposure concentrations, and endpoint selection that limit cross-study comparisons and risk assessment.
Assessment of potential ecological risk for microplastic particles
Researchers developed a framework for assessing the ecological risk of microplastic particles, incorporating particle characteristics, environmental concentrations, and species sensitivity data. The assessment identified conditions under which current environmental microplastic levels pose significant risk to aquatic organisms.
Are we really producing environmentally relevant reference materials for microplastic studies?
This study critically evaluated whether current laboratory-produced microplastic reference materials adequately represent the properties of microplastics found in real environments, examining particle morphology, chemical composition, and surface characteristics. Significant gaps were identified between commercially available reference materials and environmentally relevant particles, limiting the ecological realism of ecotoxicology studies.
Blueprint for the ideal microplastic effect study: Critical issues of current experimental approaches and envisioning a path forward
A double-weighted meta-analysis incorporating both experimental quality and statistical precision found that most published microplastic effect studies depart substantially from ecologically relevant experimental design, particularly in failing to mimic natural environments. The framework provides a quantitative benchmark for improving the rigor and generalizability of future microplastic toxicity research.
Micro/nanoplastics effects on organisms: A review focusing on ‘dose’
This critical review examined published dose-response data for microplastic effects on organisms, finding that the vast majority of studies used concentrations far exceeding measured environmental levels and calling for greater focus on realistic exposure scenarios to produce ecologically meaningful hazard assessments.
Challenges and recommendations in experimentation and risk assessment of nanoplastics in aquatic organisms
This review identifies key methodological weaknesses in laboratory studies of nanoplastics in aquatic organisms — including inadequate controls, unrealistic exposure concentrations, and poor detection methods — that undermine risk assessment reliability. The authors call for a standardized quality criteria framework to make nanoplastic research more rigorous and environmentally relevant. Since nanoplastics are the least-understood size fraction of plastic pollution, improving study design is essential before regulators can set safe exposure limits.
Microplastics: addressing ecological risk through lessons learned
Researchers reviewed the current state of microplastic ecological risk assessment and proposed applying lessons learned from more established fields of environmental research. The study suggests that despite widespread concern about microplastic pollution, scientific understanding of actual ecological risk remains limited, and future research should follow more rigorous risk assessment frameworks.
Micro/nanoplastics in aquatic ecosystems: Analytical challenges, ecological impacts, and mitigation strategies
This review provides a comprehensive assessment of micro- and nanoplastic pollution in aquatic ecosystems, covering detection methods, toxic effects across the food chain, and emerging cleanup strategies. Researchers highlight the limitations of current analytical techniques and the challenges of accurately measuring these tiny particles in water and living organisms. The study identifies key research priorities needed to better understand and mitigate the growing threat of plastic particle pollution in waterways.
Understanding hazardous concentrations of microplastics in fresh water using non-traditional toxicity data
Researchers developed hazard concentration thresholds for microplastics in freshwater using non-traditional toxicity data, accounting for environmentally relevant sizes, shapes, and polymer types to provide more realistic governance standards.
A critical review on the evaluation of toxicity and ecological risk assessment of plastics in the marine environment
This critical review questions whether current scientific methods can adequately assess the ecological risks of plastic pollution in the ocean. The authors note that plastics can cause physical, chemical, and biological harm to marine life, but most studies use unrealistically high concentrations and pristine lab-made particles rather than real-world weathered plastics. The review calls for more standardized and environmentally relevant testing approaches.
Are We Underestimating Microplastic Contamination in Aquatic Environments?
This review argues that current microplastic monitoring methods likely underestimate the true extent of contamination in aquatic environments, especially for small particles and fibers. The authors call for standardized, more sensitive detection methods to better inform regulation and risk assessment.
Further Studies in Translatable Model Systems are Needed to Predict the Impacts of Human Microplastic Exposure
This review highlights that humans are inevitably exposed to microplastics through food, drink, and air, but most toxicity studies have been done in aquatic species at unrealistically high doses. The authors call for better experimental models that reflect realistic human exposure before health risks can be fully assessed.
The need to investigate continuums of plastic particle diversity, brackish environments and trophic transfer to assess the risk of micro and nanoplastics on aquatic organisms
A systematic literature review identified gaps in microplastic toxicology research, particularly the lack of studies using environmentally realistic particles in brackish-water environments and the underrepresentation of trophic transfer studies compared to single-species exposure tests.
Comprehending the complexity of microplastic organismal exposures and effects, to improve testing frameworks
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.