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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Marine & Wildlife Policy & Risk Remediation Sign in to save

Vertical distribution of microplastics in mangrove sediment in a tropical estuarine region.

Zenodo (CERN European Organization for Nuclear Research) 2024
Bethânia Dal Col Lehrback, Bethânia Dal Col Lehrback, Luiz Eduardo De Oliveira Gomes, Daniela Gadens Zanetti, Daniela Gadens Zanetti, Ana Carolina de Lima Barizao, Pedro Belga, Anderson Antônio Batista, Humberto Marotta, Fabio Cavalca Bom, Fabian Sá

Summary

Researchers characterized vertical microplastic distribution in sediment cores from mangrove fringe sites in the Piraque-Acu and Piraque-Mirim estuary in eastern Brazil, finding concentrations ranging from 80 to 960 items per kg dry weight using a saline flotation and vacuum filtration protocol.

Study Type Environmental

Mangroves provide many ecosystem services to global maintenance, but increased solid waste mismanagement is causing severe harm to this environment. Our sampling was carried out in the mangrove of the Piraquê-Açú and Piraquê-Mirim estuary (ESPAPM: 19°57′S, 40°10′W; Eastern Brazil). The estuarine region is located in a municipal conservation area, and is characterized by a distinct geomorphology where the two rivers meet in a Y-shaped confluence. This project aims to characterize the microplastic (MPs) pollution following a vertical gradient from sediment cores collected at Piraquê-mirim fringe (PMF: 30 cm) and Piraquê-Açú fringe (PAF: 45 cm). The extraction of MPs in the sediment was carried out by a flotation process using a saline solution of NaCl (1.2 g ml-1) through the Sediment-Microplastic Isolation (SMI) system, followed by filtration through a vacuum system, using fiberglass filters. The concentration of MPs ranged from 80 - 960 items Kg-1 dry weight (284.73 ± 199.70; average ± standard deviation), with organic matter content ( Also see: https://micro2024.sciencesconf.org/546283/document

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