Table 1 Particle size of found microplastics, differentiated between perennial rivers, ephemeral rivers and the Iishana system
From: Microplastics in Namibian river sediments – a first evaluation
5 mm [%] | 1 mm [%] | 0.5 mm [%] | 0.3 mm [%] | |
|---|---|---|---|---|
Perennial rivers | 0.0 | 16.7 | 41.7 | 41.7 |
Ephemeral rivers | 0.0 | 24.1 | 36.8 | 39.1 |
Iishana | 0.4 | 23.7 | 46.9 | 29.0 |
In total | 0.2 | 23.7 | 42.4 | 33.7 |