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Papers
20 resultsShowing papers similar to An alternative approach to risk rank chemicals on the threat they pose to the aquatic environment
ClearA New Method for Environmental Risk Assessment of Pollutants Based on Multi-dimensional Risk Factors
Researchers proposed a new synthetic risk factor (SRF) method for environmental risk assessment that integrates toxicity endpoint values, environmental exposure levels, persistence properties, and compartment-specific features across multiple environmental media into a single multi-dimensional evaluation framework. The approach addresses a key limitation of traditional chemical risk assessment methods that assess toxicity and exposure without accounting for persistent pollutant behavior across different environmental compartments.
Exposures in Aquatic Ecosystems: The Weak Link in Risk Assessments - A Critical Perspective
This critical perspective argues that exposure assessment is the weakest link in aquatic risk assessments, because the concentrations organisms actually experience in the environment are often poorly measured or estimated. Improving exposure assessment is directly relevant to better evaluating the actual risks posed by microplastics in aquatic systems.
Characterizing Freshwater Ecotoxicity of More Than 9000 Chemicals by Combining Different Levels of Available Measured Test Data with In Silico Predictions
Researchers developed a method combining laboratory toxicity data with computer predictions to estimate the ecological hazards of over 9,000 chemicals in freshwater environments. They found that using even limited experimental data alongside predictive models significantly improved the accuracy of environmental risk assessments. The approach could help regulators better evaluate the ecological impact of the thousands of chemicals, including plastic-related compounds, that currently lack comprehensive toxicity data.
Predicted aquatic exposure effects from a national urban stormwater study
Researchers estimated cumulative acute risks to aquatic ecosystems from contaminant mixtures in episodic stormwater discharges across the US, revealing significant potential exposure effects on multiple trophic levels.
Advances in aquatic toxicology for predicting effects of multiple pollutants on aquatic organisms
This review examines advances in aquatic toxicology for predicting how mixtures of contaminants — heavy metals, pesticides, pharmaceuticals, and microplastics — interact in aquatic organisms, highlighting computational modeling and mixture toxicity approaches as key tools for environmental risk assessment.
Assessment of ecological risk for ecosystems caused by dredged materials in freshwater environments
Researchers assessed ecological risks posed by chemical contaminants in dredged freshwater sediments, evaluating metals, organic pollutants, and emerging contaminants including microplastics across multiple risk metrics to inform safe disposal and management decisions.
Integrated Ecological Risk Assessment of the Agricultural Area under a High Anthropopressure Based on Chemical, Ecotoxicological and Ecological Indicators
Researchers conducted an integrated ecological risk assessment of agricultural land using chemical, ecotoxicological, and ecological indicators, finding that while chemical analysis overestimated risk, the combined approach revealed most of the area had acceptable risk levels despite over a century of anthropogenic pressure.
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.
Aquatic ecosystem indices, linking ecosystem health to human health risks
Researchers reviewed indicators used to assess aquatic ecosystem health and found that most existing tools don't adequately capture the risks that degraded water ecosystems pose to human health and well-being. They propose a new set of combined indicators — covering chemical contaminants, pathogens, and biological markers — to better link ecosystem health monitoring to human health outcomes.
Towards standard methods for the classification of aquatic toxicity for biologically active household chemicals (BAHC) present in plastics, pharmaceuticals, and cosmetic products
Researchers proposed a standardized testing method using marine invertebrate models to assess the aquatic toxicity of biologically active household chemicals found in plastics, pharmaceuticals, and cosmetics, including substances with very low water solubility.
Assessment of potential ecological risk for microplastic particles
Researchers applied an ecological risk assessment framework to evaluate the hazard posed by microplastic particles across multiple environmental compartments, using species sensitivity distributions and environmental concentration data. The assessment highlighted specific particle types and size ranges that present the greatest ecological risk.
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.
Non-traditional species sensitivity distribution approaches to analyze hazardous concentrations of microplastics in marine water
Researchers analyzed species sensitivity distribution curves for microplastic toxicity in marine water using non-traditional approaches, determining hazardous concentration thresholds across multiple toxicity endpoints to support environmental risk assessment.
A new holistic perspective to assess the ecological risk of microplastics: A case study in Baiyangdian Basin, China
Researchers developed a more comprehensive method for assessing the ecological risks of microplastic pollution by considering not just concentration but also the physical and chemical properties of the particles. Applied to a Chinese wetland basin, the approach revealed that traditional methods significantly underestimate the true ecological risk, with human activity and poor water flow contributing to the highest danger zones.
A Multilevel Risk Assessment Framework for Nanoplastics in Aquatic Ecosystems
Researchers proposed a multilevel risk assessment framework for nanoplastics in aquatic ecosystems that synthesizes complex ecotoxicological datasets into actionable risk indicators, designed to help policymakers set safety thresholds and make decisions about restrictions on petrochemical-derived materials.
Chemical Mixtures and Multiple Stressors: Same but Different?
This review highlights the parallels between chemical mixture research and multiple stressor ecology, arguing that both fields face similar challenges in predicting joint effects and would benefit from integrated frameworks combining chemical and non-chemical stressor assessments.
Effective strategies for mitigating toxicity in aquatic environments
This review covered effective strategies for reducing the toxicity of chemical pollutants in aquatic environments, including physical, chemical, and biological treatment approaches. It evaluated the efficacy, cost, and practicality of various mitigation techniques for protecting aquatic ecosystems.
Integrative Evaluation of the Ecological Hazards by Microplastics and Heavy Metals in Wetland Ecosystem
Researchers conducted an integrative ecological hazard assessment of microplastics combined with heavy metals, evaluating their combined toxicity to aquatic organisms. The study found that co-contamination with heavy metals and microplastics poses greater ecological risk than either pollutant alone.
Context and Perspective in Ecotoxicology
This perspective piece discusses the challenges in ecotoxicology of prioritizing chemical threats relative to other environmental stressors like habitat loss and climate change. It argues for better context and clearer communication when assessing the real-world significance of contaminant risks.
Assessment of potential ecological risk for microplastics in freshwater ecosystems
Researchers assessed the ecological risk of microplastics across freshwater ecosystems worldwide, including rivers and lakes in China, Vietnam, Europe, and South America. While one risk method showed negligible danger, more comprehensive assessment approaches revealed extreme ecological threats at every location studied, suggesting that microplastic pollution in freshwater may be more serious than previously thought.