Question

Why can pollutants travel so far in the ocean? What properties of water help this happen?

Answer 1

They can travel so far because the ocean is so vast. Tides and random wave movement cause it to travel so far.

Answer 2

Basically, water flow, diffusion, food chains are main causes

Answer 3

answer : many wind-driven currents.

In lakes and oceans pollutants are transported through currents. There are many currents in the oceans, which are wind-driven. This enables a pollutant to travel from one continent to another.
We usually count on the ability of the oceans to reduce pollutants in concentration, the so-called 'self-cleaning ability' of oceans. But this does not always work, because the movement of the currents in the oceans is not uniform. This causes inshore waters to often have substantially higher levels of pollution than the open sea.

Answer 4

Also Water is an amazing solvent so particles that are polar(charged) can be easily dissolved in the water and then taken on currents around the globe