Microplastics – Remain Preserved Once Incorporated into Sediments Until Disturbed

According to a November 14, 2022, Environmental Science and Technology article https://doi.org/10.1021/acs.est.2c04264 by researchers with Spain Autonomous University of Barcelona and Denmark Aalborg University “ … there is a lack of robust data on the historical evolution of microplastic (MP) pollution in the sediment … we investigate the fate of MPs once buried in the sediments by evaluating the changes in the size distribution of the MPs and the weathering status of the polyolefins, polyethylene, and polypropylene. Our results indicate that the MP mass sequestered in the sediment compartment mimics the global plastic production from 1965 to 2016. We observed an increase in the weathering status of the polyolefins as the size decreased. However, the variability in the size and weathering status of the MPs throughout the sedimentary record indicated that these pollutants, once incorporated into sediments, remain preserved with no further degradation under conditions lacking remobilization …” #MicroPlastics #PlasticWaste #SingleUsePlastic @UABBarcelona