First evidence of microplastic contamination in the freshwater of Lake Guaíba, Porto Alegre, Brazil

The Science of the Total Environment
Crislaine BertoldiAndreia N Fernandes

Abstract

The ubiquitous presence of microplastics in the aquatic environment has raised concern about their potential impacts on and risks to the biota. While the presence of microplastics in a marine environment has been well studied, the impact of microplastic contamination in freshwater bodies is understudied. In the present study, baseline data about contamination with microplastics in Lake Guaíba in southern Brazil are presented. The abundance, distribution, and composition of microplastics in the surface of this freshwater body were investigated, and these parameters were correlated with population density, land occupation, wind, and geohydrologic processes. The samples were collected with a manta net (60 μm mesh size). Microplastics were found in all the samples, with an average of 11.9 ± 0.6 to 61.2 ± 6.1 items m-3, which indicates the widespread contamination of the lake with plastic particles. The most frequent microplastic morphology was the fragment type in the size range of 100 to 250 μm, and the predominant colours were white/transparent and red. Measurement uncertainty of the visual microplastic counts showed that black colour microplastics is more susceptible to be mistaken, which might lead to an underestimation and/or ...Continue Reading

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Citations

Apr 25, 2021·Environmental Pollution·Julia DusaucyEmmanuel Naffrechoux
Jul 31, 2021·The Science of the Total Environment·Larissa Zacher LaraAndreia Neves Fernandes
Aug 10, 2021·Environmental Science. Processes & Impacts·Andrew Turner, Montserrat Filella
Aug 10, 2021·The Science of the Total Environment·María B AlfonsoMaría C Piccolo

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