Microplastic particles of about 2 mm big. (IMAGE) Royal Netherlands Institute for Sea Research Caption Microplastic particles of about 2 mm big. Photo: NIOZ. Credit Photo: Royal Netherlands Institute for Sea Research (NIOZ) Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.