What are Microplastics?

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Scientists from South Korea have recently developed a new water purification system that can quickly and efficiently filter out microplastics.

About Microplastics:

  • Microplastics are tiny bits of various types of plastic found in the environment.
  • The name is used to differentiate them from “macroplastics” such as bottles and bags made of plastic.
    There is no universal agreement on the size that fits this bill — the U.S. NOAA (National Oceanic and Atmospheric Administration) and the European Chemical Agency define microplastic as less than 5mm in length.


What are the types of microplastics?

  • There are two categories of microplastics: primary and secondary.
  • Primary microplastics are tiny particles designed for commercial use, such as cosmetics, as well as microfibers shed from clothing and other textiles, such as fishing nets.
  • Secondary microplastics are particles that result from the breakdown of larger plastic items, such as water bottles.
    • This breakdown is caused by exposure to environmental factors, mainly the sun’s radiation and ocean waves.


Q1) What is Polyvinyl chloride (PVC)?

Polyvinyl chloride (PVC) is one type of thermoplastic polymer that is currently penetrating many aspects of life through its wide use, and has become a universal polymer.

Source: New tech can filter microplastics with minimal energy, says study