Decree-Law No. 108/2010, of 13 October 2010

Transposes the Marine Strategy Framework Directive into national legislation. Establishes the legal framework for the measures necessary to ensure the good environmental status of the marine environment by 2020.

Decree-Law No. 165/2003, of July 24, 2003

Transposes Directive No. 2000/59/EC, of the European Parliament and of the Council, of 27 November, on port reception facilities for ship-generated waste and cargo residues originating in Portugal. ships using national ports; With the changes introduced by Directive no. 2002/84/EC, of the European Parliament and of the Council, of 5 November.

OSPAR

UNEP

Marine Debris Monitoring and Assessment: Recommendations for Monitoring Debris Trends in the Marine Environment

NOAA, 2013

UNEP/IOC Guidelines on Survey and Monitoring of Marine Litter

UNEP, 2009

Microplastics: the "gift" poisoned

Frias, JP (2010). Microplastics: the “gift” poisoned. Master's thesis in Environmental Engineering, Ecological Engineering profile. Faculty of Science and Technology, Universidade Nova de Lisboa, Lisbon.