Microplastic Debris (image) University of Washington Share Print E-Mail Caption Pieces of plastic debris found in the oceans are smaller than many people think. Most are measured in millimeters. Credit Sea Education Association Usage Restrictions Image credit required Share Print E-Mail 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.