Fig. 6

Kinetics of fragment degradation in mass metrics. a) relative mass of micronized granules and films compared each to initial polymer compound mass extracted, b) relative mass of several size fractions compared to the conversion to CO₂, for the worst-case-scenario A (micronized granules) [18], c) relative mass of several size fractions compared to initial polymer compound mass extracted for scenario B (micronized films). Calculations are based on the measured particle size distributions and numbers from fluorescence and Raman microscopy at the specific timepoints, representing all fragments above 3 µm and below 2000 µm. The fitted curves represent a guide to the eye and are no numerical model yet