Microplastic and tar pollution on three Canary Islands beaches: An annual study

• Published in: Marine Pollution Bulletin
• Main Authors: Herrera, A., Asensio, M., Martínez, I., Santana, A., Packard, T., Gomez, M.
• Other Authors: Herrera, Alicia, Martinez Sanchez, Ico, 57193161519, 57201069383, 55189627500, 56554207500, 7004249480, 7401734371, 4619616, 962045, 4720709, 95948, 311411, 1273639
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: 2510 Oceanografía; 120903 Análisis de datos; 240401 Bioestadística; Marine debris Microplastic; Tar; Resin pellets; Pollution; Canary Islands; North Atlantic
• Online Access: http://hdl.handle.net/10553/40320; https://doi.org/10.1016/j.marpolbul.2017.10.020

Marine debris accumulation was analyzed from three exposed beaches of the Canary Islands (Lambra, Famara and Las Canteras). Large microplastics (1-5 mm), mesoplastics (5-25 mm) and tar pollution were assessed twice a month for a year. There was great spatial and temporal variability in the Canary Island coastal pollution. Seasonal patterns differed at each location, marine debris concentration depended mainly of local-scale wind and wave conditions. The most polluted beach was Lambra, a remote beach infrequently visited. The types of debris found were mainly preproduction resin pellets, plastic fragments and tar, evidencing that pollution was not of local origin, but it cames from the open sea. The levels of pollution were similar to those of highly industrialized and contaminated regions. This study corroborates that the Canary Islands are an area of accumulation of microplastics and tar rafted from the North Atlantic Ocean by the southward flowing Canary Current.