Microplastics are small plastics with a diameter of 5 mm or less. In the process of littering and transporting to waste disposal facilities, plastic waste is washed away by wind and rain, and flows into the sea through sewage.

Since plastic does not rot, it does not decompose even if it is buried in soil, which causes environmental problems.

Plastic is a polymer substance that can be molded by applying heat or pressure.

The circular economy is a concept that has become widespread worldwide with the EU’s announcement of its policy package in December 2015.