Question

What is the Amount of plastic swept into the oceans from illegal dumping

Answer 1

Every year almost "10 billion pieces of litter per square kilometer" is dumped 
into oceans and beaches.Plastic is one of the most dreded garbage in the world.Plastic cannot be decomposed.Plastic should never be dumped into water because it would not dissolve into water.Every year so many water animals die  because they consume plastic or they get trapped into it.
There is a worldwide movement going regarding boycott of plastic.Instead of 
using plastic bags we must use  jute bag.
Avoid using plastic bottles

Answer 2

Solution:

According to an estimate, around eight million tons of plastic is dumped into the oceans as a result of illegal dumping.

The main reason behind this is that plastic is being banned from many places and in order to get rid of this most of the illegal dumpers directly throw it into the oceans.