Adsorption of Cd and Cu to different types of microplastics in estuarine salt marsh medium. (February 2020)

• Record Type: Journal Article
• Authors: Almeida, C. Marisa R.; Manjate, Edite; Ramos, Sandra
• Is Part Of: Marine pollution bulletin. Volume 151(2020)
• Publication Date: 2020-02
• Subjects: Metals -- Polyethylene microspheres -- Fishing line fibers -- Film plastic bags MPs -- Bottle cap particles; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2019.110797
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: This study aimed to investigate if microplastics (MPs) type (polyethylene microspheres (mPE), fishing line fibers, film plastic bags MPs and bottle cap particles) and aging affect MPs capacity to sorb Cd or Cu in estuarine salt marsh medium. Tests were carried out in elutriate solution, a simple medium obtained by mixing rhizosediment (sediment in contact with plants roots) with the respective estuarine water, that can be used to simulate water-sediment exchanges in estuarine salt marsh environments. After 7 days of exposure, metals adsorption was only detected for film MPs. No differences were observed between virgin and aged MPs. Salinity also did not influence metal adsorption to mPE. Present results indicate that in estuarine salt marsh areas some types of MPs might adsorb metals, which could affect metals availability. Highlights: MPs type and aging effect on metal adsorption not significant for most MPs tested. Both Cu and Cd were slightly adsorbed by film MPs and no other tested MPs. Tested MPs may not reduce metal availability in estuarine salt marsh medium.