By combining the data of the total collection efficiency
(Figure 2.36) with the proportion of global plastic contained
in the NPSG (Figure 2.33) a plot of relative collection
efficiency can be obtained. This is visualized in
Figure 2.37. Here the efficiency is visualized starting from
month 26 up to month 146 (10 years) since before month
26 virtually no plastic is caught due to the “start-up” cycle
of the model.