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Microplastics contamination along the coastal waters of NW Portugal

Case Studies in Chemical and Environmental Engineering 2020 32 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
C. Marisa R. Almeida C. Marisa R. Almeida Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sandra Ramos, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sabrina M. Rodrigues, C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida Sabrina M. Rodrigues, Sandra Ramos, C. Marisa R. Almeida Sandra Ramos, Sabrina M. Rodrigues, C. Marisa R. Almeida Sabrina M. Rodrigues, Sandra Ramos, Sandra Ramos, Sabrina M. Rodrigues, Sandra Ramos, Sabrina M. Rodrigues, Sabrina M. Rodrigues, Sandra Ramos, C. Marisa R. Almeida Sabrina M. Rodrigues, Sabrina M. Rodrigues, C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, C. Marisa R. Almeida Sandra Ramos, Sandra Ramos, Sabrina M. Rodrigues, C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, Sandra Ramos, Sandra Ramos, Sandra Ramos, Sandra Ramos, Sandra Ramos, C. Marisa R. Almeida C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, Sandra Ramos, Sandra Ramos, C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, Sandra Ramos, Sandra Ramos, C. Marisa R. Almeida C. Marisa R. Almeida Sandra Ramos, C. Marisa R. Almeida C. Marisa R. Almeida

Summary

Researchers surveyed microplastic contamination across four coastal sites in northwest Portugal — including a marine protected area, an estuary, a shipwreck, and a marina — finding microplastics everywhere, with higher concentrations near fishing and shipping activities. Polyethylene and polypropylene fibers and films dominated, highlighting the widespread reach of plastic pollution even in protected areas.

To evaluate the current microplastics (MPs) contamination on the NW coast of Portugal, opportunistic samples from coastal areas with different levels of anthropogenic impacts were analyzed. Water samples were collected from a coastal marine protected area, an urban estuary, a submarine wreck, and a recreational marina. An optimized protocol for the quantification of MPs, followed by visual identification and FTIR spectroscopy analysis was used to characterize MPs (polymer, type, size, color). MPs were found in all the case studies. A total of 2456 ​MPs particles were identified and classified as fibers (39%), film (39%), and fragments (22%). Up to 54% of MPs had a size range between 1 and 3 ​mm. Transparent was the dominant color (56%), followed by white (19%). Polyethylene and polypropylene were the main MPs polymers detected. Higher MPs concentration were found in areas associated with high intense fishing and shipping activities. This study showed that different types of MPs were present in all the aquatic environments surveyed, mainly in areas with more anthropogenic activities, emphasizing the need for measures to properly manage plastic litter and mitigate marine plastic pollution.

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