Caspar Roebroek , Adriaan J Teuling, Martine van der Ploeg, Daniel González-Fernández, Tim van Emmerik 

River plastic transport has been assumed to be driven by river discharge, although observational data does often not support this. We propose a new perspective that describes plastic transport as function of plastic availability and transport capacity. Plastic transport is under most circumstances driven by plastic availability, which is largely disconnected from river discharge. However, when river discharge is very low or very high, transport capacity becomes the dominant factor.