Occurrence and identification of microplastics along a beach in the Biosphere Reserve of Lanzarote

Author: Carlos Edo, Miguel Tamayo-Belda, Sergio Martínez-Campos, Keila Martín-Betancor, Miguel González-Pleiter, Gerardo Pulido-Reyes, Carmen García-Ruiza, Félix Zapata, Francisco Leganés, Francisca Fernández-Piñas and Roberto Rosal
Year of Publication: 2019
Published: Marine Pollution Bulletin

Abstract:
This work studied the accumulation of plastic debris in a remote beach located in La Graciosa island (Chinijo archipelago, Canary Islands). Microplastics were sampled in the 1–5 mm mesh opening range. An average plastic density of 36.3 g/m² was obtained with a large variability along the 90 m of the beach (from 8.5 g/m² to 103.4 g/m²). Microplastic particles preferentially accumulated in the part of the beach protected by rocks. A total number of 9149 plastic particles were collected, recorded and measured, 87% of which corresponded to fragments. Clear colours and microscopic evidence of weathering corresponded to aged plastics wind-driven by the surface Canary Current. The chemical composition of plastics particles corresponded to PE (63%), PP (32%) and PS (3%). Higher PE/PP ratios were recorded in the more protected parts of the beach, suggesting preferential accumulation of more aged fragments.

Keywords:
Marine debris, marine pollution, microplastics, FTIR, Raman

Citation:
Edo, C., Tamayo-Belda, M., Martínez-Campos, D., Martín-Betancor, K., González-Pleiter, M., Pulido-Reyes, G., García-Ruiza, C., Zapata, F., Leganés, F., Fernández-Piñas, F., Rosal, R. (2019): Occurrence and identification of microplastics along a beach in the Biosphere Reserve of Lanzarote. Marine Pollution Bulletin 143:220–227

Link:
https://doi.org/10.1016/j.marpolbul.2019.04.061