Optimizing a controlled environment for microplastics uptake by aquatic plants

Due to their small size and potential to enter organisms, microplastics in aquatic ecosystems, are posing an emerging threat. Plants play a crucial role in these environments both from the point of endangered species and like a way to mitigate the pollution so understanding their interaction with microplastics is essential. This study analyses the dispersion of polypropylene microparticles in different water matrices. Polypropylene was chosen for this study, since it has lower density than water, allowing its particles to float at the water-air interface, mimicking the natural position of many aquatic plants and potentially facilitating their interaction. Polypropylene nanoparticles were prepared by sieving a polypropylene powder through 500 um mesh. Particle size distribution and chemical composition were analyzed using various techniques: Scanning Electron Microscopy, Micro-Raman, Fourier-Transform Infrared Spectroscopy, Optical Microscopy and Laser diffraction. Four water matrices were used: tap water, Milli-Q water, pure water and with 0.1 Also see: https://micro2024.sciencesconf.org/559523/document