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Quantifying, and assessing the impact of, microplastics in terrestrial samples
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Researchers aimed to develop effective methodologies for quantifying and assessing the ecological impact of microplastics (1-1000 µm) in terrestrial environments such as woodlands, which have been understudied compared to aquatic and sediment systems. The study sought to fill knowledge gaps about microplastic concentrations and effects in terrestrial ecosystems to inform policy development.
Microplastics, particles 1 ¡ 1000 µm, are an emerging pollutant. Microplastics in sediment and aquatic environments have dominated research, leaving the world with an inadequate understanding of microplastics in terrestrial environments such as woodlands. Terrestrial ecosystems are crucial for the continued well-being of many species and functions and so it is important that the concentration and effects of microplastics in terrestrial environments are given more attention. This research will fill a knowledge gap by developing effective, innovative methodologies to further our understanding of the scale and impact of microplastics in terrestrial environments and supporting the creation of policies to better regulate microplastics. Also see: https://micro2024.sciencesconf.org/556621/document
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Quantifying, and assessing the impact of, microplastics in terrestrial samples
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Researchers developed methodologies to quantify microplastics (1 to 1000 micrometers) in terrestrial woodland environments, addressing the significant knowledge gap about microplastic concentrations and ecological impacts in soil ecosystems compared to the more extensively studied aquatic compartments.
Analysing microplastics in samples of terrestrial systems
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This methodology paper addresses the analytical challenges of extracting and quantifying microplastics from complex terrestrial samples such as soil, sediment, and biota, reviewing extraction, separation, and identification techniques. Standardized approaches for terrestrial microplastic analysis lag behind aquatic methods, limiting understanding of land-based pollution.
Appraisal of Microplastics in Forest Ecosystem - Sources, Migration and Mitigation
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This review examines microplastic pollution in forest ecosystems, discussing sources including atmospheric deposition and agricultural runoff, mechanisms of migration through soil and water, impacts on forest biodiversity and soil health, and potential mitigation strategies.
The Scale and Distribution of Microplastic Pollution in the Soils of a UK Urban Woodland
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Sampling across Epping Forest in London found microplastics in every soil sample, with forested areas showing up to 5-fold higher concentrations than adjacent open areas (mean 2,937 vs. 543 particles/kg), suggesting forest canopies act as preferential accumulation zones for atmospheric microplastic deposition. The study reveals that even ancient woodlands in urban areas are heavily contaminated, with fibrous PET particles accumulating at concentrations comparable to agricultural soils, raising concerns for soil ecosystems and groundwater.
Microplastics as an emerging hazard to terrestrial and marine ecosystems: Sources, Occurrence and Analytical Methods
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This review summarized the sources, occurrence, and detection methods for microplastics across multiple environmental compartments, noting that methodological limitations make comparison across studies difficult. The review calls for standardized analytical approaches to better quantify global microplastic contamination.
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