Table 2 Colors of the found MP, differentiated according to the three river systems
From: Microplastics in Namibian river sediments – a first evaluation
Transparent [%] | White [%] | Yellow [%] | Black [%] | Blue [%] | Brown [%] | Grey [%] | Green [%] | Pink [%] | Red [%] | Orange [%] | |
|---|---|---|---|---|---|---|---|---|---|---|---|
Perennial rivers | 0.0 | 0.0 | 25.0 | 0.0 | 8.3 | 66.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Ephemeral rivers | 27.6 | 12.6 | 2.3 | 28.7 | 12.1 | 12.1 | 0.0 | 0.6 | 0.6 | 2.9 | 0.6 |
Iishana | 34.4 | 10.7 | 1.3 | 1.8 | 3.6 | 30.8 | 14.3 | 0.4 | 2.2 | 0.0 | 0.4 |
In total | 30.5 | 11.2 | 2.4 | 13.2 | 7.3 | 23.9 | 7.8 | 0.5 | 1.5 | 1.2 | 0.5 |