Wednesday, December 11, 2024

WHAT ARE MICROPLASTICS?

Microplastics are tiny plastic particles less than 5 millimeters (0.2 inches) in size. They result from the breakdown of larger plastic debris or are manufactured as small particles for specific applications. Microplastics are a significant environmental concern because of their prevalence in ecosystems and potential impact on living organisms.

Types of Microplastics

  1. Primary Microplastics: Intentionally manufactured small particles, such as:
    • Microbeads in personal care products (e.g., exfoliants in scrubs and toothpaste).
    • Industrial raw materials like plastic pellets (nurdles).
    • Synthetic fibers from clothing, released during washing.
  2. Secondary Microplastics: Formed through the fragmentation of larger plastic items, such as:
    • Plastic bottles, bags, or packaging breaking down due to UV radiation, waves, or physical wear.
    • Fishing gear like nets and lines degrading over time.

Sources of Microplastics

  • Household: Washing synthetic clothing, using microbead-containing products.
  • Industrial: Improper disposal of plastic waste, pellet spills.
  • Environmental: Weathering and erosion of plastic waste in oceans, rivers, and soil.

Environmental Impact

  • Found in oceans, rivers, soil, and even the air.
  • Ingested by marine life, potentially entering the food chain.
  • Adsorb harmful chemicals, which may pose risks to wildlife and humans.

Health Concerns

  • Potential ingestion or inhalation by humans.
  • Potential for bioaccumulation and toxicity.
  • Unclear long-term effects, prompting ongoing research.

Reducing microplastic pollution involves better waste management, reducing single-use plastics, and using alternative biodegradable materials.



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