Simple and cost-effective method for microplastic quantification in estuarine sediment
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2020
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Case Studies in Chemical and Environmental Engineering
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Sediment is a useful environmental compartment in the evaluation and monitoring of microplastics (i.e., plastic
particles between 1 μm and 5 mm in length) in aquatic environments, since 70% of plastic waste is deposited on
the ocean floor, in riverbeds, and on the bottom of estuaries. The techniques typically used to separate and
quantify microplastics require extensive sample preparation and are often ineffective for estuarine sediment
samples. In this study, we present a new method for separating and quantifying microplastics found in estuarine
sediment samples. This procedure involves sediment collection, drying, sieving (2.0, 1.0, 0.5 and 0.25 mm mesh
sizes), and stereomicroscopic examination of the samples retained in each sieve. The results were measured as
microplastic abundance (particles g-1 of sediment). This method allows researchers to estimate total microplastic
abundance and distribution at the sieve meshes tested, calculate thread/fiber and fragment proportions, and
separate microplastic samples for subsequent Py-GC/MS analysis in order to identify their respective compositions.
This method was found to be effective in precluding the need for solvents and reducing the amount of time
required for sample preparation. For these reasons, this method is more cost-effective and generates less environmental
impact than those currently available.
Como referenciar
GIMILIANI, GIOVANA T.; FORNARI, MILENE; REDÍGOLO, MARCELO M.; BUSTILLOS, JOSE O.W.V.; ABESSA, DENIS M. de S.; PIRES, MARIA A.F. Simple and cost-effective method for microplastic quantification in estuarine sediment: a case study of the Santos and São Vicente Estuarine System. Case Studies in Chemical and Environmental Engineering, v. 2, p. 1-5, 2020. DOI: 10.1016/j.cscee.2020.100020. Disponível em: http://repositorio.ipen.br/handle/123456789/31990. Acesso em: 23 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.