Monitoring for plastics (IMAGE) University of California - Riverside Caption Streams in LA County are small and prone to flash floods, so monitoring for microplastics often happens at any time of day or night. Credit Andrew Gray/UCR Usage Restrictions None License Original content 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.