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Comparison of Methodologies for Microplastic Isolation through Multicriteria Analysis (AHP)
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Researchers used multicriteria analysis (AHP) to compare different microplastic isolation methodologies for soil samples, identifying the most effective protocols and highlighting the need for standardized extraction methods to enable comparable results across studies.
Environmental pollution caused by microplastics has evolved into a global concern; however, limited knowledge exists about microplastics in soils due to the absence of standardized extraction methods. This research aimed to develop an inexpensive, rapid method with user-friendly and environmentally sustainable outcomes for microplastics retrieval. Three salt solutions (Sodium Chloride, Magnesium Sulfate, Sodium Hexametaphosphate) and an oil solution (canola oil) underwent evaluation for microplastics extraction through the flotation process due to the density and oleophilic properties of plastics. Four widely used plastic types, obtained through fragmentation using a grinding mill from clean new plastic containers or membranes, were subjected to analysis. The experimental procedures for microplastics retrieval varied among the evaluated solutions. Through a comprehensive multicriteria analysis, the saturated Sodium Chloride solution emerged as the optimal scenario for microplastics extraction, followed closely by the canola oil scenario. The recovery method utilizing Sodium Chloride demonstrated economic feasibility, safety, and reliability. This study provides valuable insights into an effective and sustainable approach for mitigating microplastic pollution in soil, offering a promising avenue for future environmental conservation efforts.
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A novel multi-criteria decision analysis approach to advance standardisation of microplastic extraction from agricultural soils
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Researchers developed a standardized method for extracting microplastics from agricultural soils using a multi-criteria decision framework that weighed recovery efficiency, cost, time, and environmental impact. The winning combination — hydrogen peroxide digestion at 50°C followed by zinc chloride density separation — achieved over 92% recovery of microplastics across diverse soil types.
Research Progress on Separation and Detection Methods of Microplastics in Soil Environment
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This review summarizes methods for separating and detecting microplastics in soil environments, identifying the most effective analytical approaches and highlighting the need for standardization to improve comparability across studies.
Quality assessment of research studies on microplastics in soils: A methodological perspective
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A methodological quality assessment of published soil microplastic studies identified widespread inconsistencies in extraction, identification, and reporting protocols that limit comparability and reliability of findings. The review recommends adoption of standardized quality criteria to improve the rigor and reproducibility of soil microplastic research.
Microplastic in Soil: a Review of Detection Methods
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This review examines published approaches for detecting and identifying microplastics in soil environments, synthesizing sampling, extraction, and characterization methods to address the lack of standardization that hinders cross-study comparisons. Researchers found that unifying detection methods is essential for developing a common understanding of microplastic prevalence and impact in terrestrial ecosystems.
Microplastics in soils: A comparative review on extraction, identification and quantification methods
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This review compares the various methods scientists use to extract, identify, and measure microplastics in soil, highlighting the strengths and weaknesses of each approach. Soil is a particularly challenging material to work with because its organic matter and complex structure can interfere with accurate microplastic detection. The authors recommend combining multiple techniques and minimizing harsh chemical steps that could accidentally destroy the very plastic particles being measured.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.