Can the colors of beach-stranded plastic pellets in beaches provide additional information for the environmental monitoring?
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International Aquatic Research
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Plastic pellets are granules of different polymers used in the manufacture of various plastic
products. Plastic pellets can reach the environment due to losses after their manufacturing process,
especially the transportation. Loading in harbour areas and transport by ships are the main sources of plastic
pellets to the ocean and coastal areas. After pellets reach the environment, they may adsorb and concentrate
chemicals contaminants from different sources. Moreover, the weathering of plastic pellets may result in
color changes, from white to brownish. This study aimed to analyse the color pattern of pellets collected on
beaches of the central coast of São Paulo, Brazil, as an indicator of weathering and ageing processes. Plastic
pellets were collected in four sampling surveys conducted between April 2012 and September 2015, and
then separated in five color groups: white, yellowish, orange, brown, and pigmented. All sampled beaches
had a consistent pattern of light-toned pellets (white and yellowish). This pattern was also found over
time, suggesting a constant supply of plastic pellets to the beaches, coming from the harbour area. We also
recommend the use of the color pattern of plastic pellets in citizen science monitoring programs.
Como referenciar
MENDES, GABRIEL I.; GIMILIANI, GIOVANA T.; NOBRE, CAIO R.; TAKADA, HIDESHIGE; FONTES, ROBERTO F.C.; ABESSA, DENIS M. de S. Can the colors of beach-stranded plastic pellets in beaches provide additional information for the environmental monitoring?: A case study around the Port of Santos, Brazil. International Aquatic Research, v. 14, n. 1, p. 23-40, 2022. DOI: 10.22034/IAR.2022.1943050.1205. Disponível em: http://repositorio.ipen.br/handle/123456789/33175. Acesso em: 26 Mar 2026.
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