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Synthetic microfibers in the marine environment: A review on their occurrence in seawater and sediments.
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This review synthesized available data on synthetic microfiber concentrations in marine seawater and sediments, finding fibers in all reviewed studies and noting that blue fibers and polypropylene are the most common types. The review highlights the lack of standardized sampling and reporting methods, making cross-study comparisons difficult.
The objective of this review is to summarize information on microfibers in seawater and sediments from available scientific information. Microfibers were found in all reviewed documents. An heterogeneous approach is observed, with regard to sampling methodologies and units. Microfibers in sediments range from 1.4 to 40 items per 50mL or 13.15 to 39.48 items per 250g dry weight. In the case of water, microfibers values ranges from 0 to 450items·m or from 503 to 459,681items·km. Blue is the most common color in seawater and sediments, followed by transparent and black in the case of seawater, and black and colorful in sediments. Related with polymer type, polypropylene is the most common in water and sediments, followed by polyethylene in water and polyester in water and sediments. Some polymers were described only in water samples: high-density polyethylene, low-density polyethylene and cellophane, whilst only rayon was reported in sediments.
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