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Preparation and Analysis of Standard Microplastics
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Researchers prepared and characterized standard microplastic samples from synthetic textiles, finding that microfilaments shed by fabrics are the dominant form and proposing methods for creating consistent reference materials for environmental monitoring studies.
Over 14 million tons of microplastic have been accumulated in water resources and they are increasing yearly. About 8% of European microplastic released into the water are from synthetic textiles. This kind of microplastic is generally in the form of microfilaments. They have a higher potential to enter the food chain due to their size and shape. Although microfilaments generate great concern, no precise guidelines for their quantification and qualification are yet available. Thus, in this chapter, the origin of microfilaments is fully investigated. After that, a novel approach for identifying and counting microplastic with fiber shape is presented. An accurate method for preparing microfilament standard suspensions is described to facilitate lab tests and have a reliable methodology for monitoring microplastic pollution.
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Researchers developed and validated reference standards containing synthetic textile microfilaments for use in laboratory analysis of microplastics. Standardized reference materials are essential for ensuring that analytical methods for detecting textile-derived microplastics are accurate and comparable across different labs.
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This paper tackles the confusing terminology around tiny plastic fibers shed from textiles, which account for roughly 35% of microplastics released into the environment. The authors propose a standardized definition for fiber-shaped microplastics to help researchers compare results across studies and better track this major source of plastic pollution.
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Researchers quantified the shedding of synthetic fibers from textiles during simulated washing, finding that fabric type, age, and wash conditions significantly affected fiber release, and establishing a quantitative basis for estimating textile-derived microplastic inputs.
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