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Meso- and microplastic composition, distribution patterns and drivers: A snapshot of plastic pollution on Brazilian beaches

  • Tamyris Pegado
  • Ryan Andrades
  • Eurico Noleto-Filho
  • Simone Franceschini
  • Marcelo de Oliveira Soares
  • David Chelazzi
  • Tommaso Russo
  • Tania Martellini
  • Angelica Barone
  • Alessandra Cincinelli
  • Tommaso Giarrizzo
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Abstract

Pollution by plastics is a worldwide problem on par with climatic change and biological invasions. In coastal sediments, plastic particles tend to accumulate and persist over the long term. We assessed the plastic pollution using a standardized surface sediment sampling protocol on 22 sandy beaches along >4600 km of the Brazilian coast. The abundance, size, color, type, and polymeric composition of all meso- and microplastic items found in the surveys were processed to disclose spatial patterns of distribution and pollution associated drivers. A General Linear Model (GLM) was run to investigate how the predictor variables influenced overall beach plastic amounts and by plastic type and size class. Overall, 3114 plastic items were found, with microplastics comprising just over half of all items (54 %). Most items were either white (60 %) or blue (13 %), while polystyrene foam (45 %) and fragments (39 %) comprised the most abundant plastic types. The principal polymers were Polyethylene (40 %) and Polypropylene (32 %). The analyses indicated that the distribution of plastic litter along beaches is determined by three predictive variables: the distance to the nearest estuary (−), tourism (+), and the number of inhabitants in the nearest urban center (+). Tourist (highly-visited) beaches and those near estuarine runoffs or urban centers presented the highest plastic pollution rates. The unveiling of plastic pollution patterns through a large-scale systematic survey is essential for future management guidance and science-based decisions for mitigating and solving the plastic pollution crisis.

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Pegado T., Andrades R., Noleto-Filho E., Franceschini S., Soares M.d.O., Chelazzi D., Russo T., Martellini T., Barone A., Cincinelli A. and Giarrizzo T. (2023) Meso- and microplastic composition, distribution patterns and drivers: A snapshot of plastic pollution on Brazilian beaches. 907: 167769. 10.1016/j.scitotenv.2023.167769

Details

Forschungsschwerpunkte
Datum 23.10.2023
Volume 907
Seiten 167769
Open Access Closed Access
Open Access Status Closed Access
Eprints_link https://cris.leibniz-zmt.de/id/eprint/5310
Peer-Reviewed

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