Are current river flux assessments overestimated and what does this mean?

Read the full story at AzoCleanTech.

An imbalance in the amount of plastic floating on the surface of the ocean and the volume leaking into the ocean by rivers led scientists to believe an unidentified sink was removing the river-sourced plastics quickly from the ocean surface.

However, several miscalculations mean the mass fluxes or flows have been overestimated by two to three orders of magnitude. This increased the average residence time of microplastics at the ocean surface from a matter of days to several years and implies they exist for longer periods and take more time to degrade than previously thought, negating the need for a missing sink.

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