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. 2019 May 29;11(6):306. doi: 10.3390/toxins11060306

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Location of the sampling points: (A) Portuguese continental coast: 1, Esposende; 2, Póvoa do Varzim; 3, Angeiras; 4, Memória; 5, Pedra de Jacó; 6, Pêlo Negro; 7, Valadares; 8, Ovar; 9, Porto Côvo; 10, Camilo; 11, Luz. (B) Madeira Island coast: 1, Caniçal and 2, Reis Magos. (C) São Miguel Island coast, Azores archipelago: 1, Cruzeiro; 2, Mosteiros; 3, Étar de Ponta Delgada; 4, São Roque; 5, Lagoa; 6, Caloura. (D) Northwestern Moroccan coast: 1, Casablanca Corniche; 2, El Jadida Haras; 3, El Jadida Sâada; 4, Sidi Bouzid; 5, Mrizika; 6, Oualidia.