Microplastics - Search
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  1. Classification

    The term "microplastics" was introduced in 2004 by Professor Richard Thompson, a marine biologist at the
    Microplastics … See more

    Microplastics - Wikipedia

    • Microplastics are fragments of any type of plastic less than 5 mm (0.20 in) in length, according to the U.S. National Oceanic and Atmospheric Administration (NOAA) and the European Chemicals Agency. They cause pollution by entering natural ecosystems from a variety of sources, including cosmetics, clothing, food packaging, and industrial processes. The term m… See more

    Sources

    A big portion of microplastic pollution comes from textiles, tires and city dust which account for over 80% of all microplastic in the seas and the environment.
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    Exposure pathways

    Airborne microplastics have been detected in the atmosphere, as well as indoors and outdoors. In 2019 a study found microplastic to be atmospherically transported to remote areas on the wind. A 2017 study … See more

    Effects on the environment

    In 2008, an International Research Workshop at the University of Washington at Tacoma concluded that microplastics were a problem in the marine environment, based on their documented occurrence, the long reside… See more

    Human health

    In 2009, mean/median intake of microplastics in humans were at levels considered by some to be safe in humans; however, some individuals would sometimes exceed these limits; the effects of this, if an… See more

    Prevention

    Some researchers have proposed incinerating plastics to use as energy, which is known as energy recovery. As opposed to losing the energy from plastics into the atmosphere in landfills, this process turns som… See more

    Policy and legislation

    With increasing awareness of the detrimental effects of microplastics on the environment, groups are now advocating for the removal and ban of microplastics from various products. One such campaign is "Beat th… See more

     
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  2. Microplastics are tiny plastic particles that result from both commercial product development and the breakdown of larger plastics. As a pollutant, microplastics can be harmful to the environment and animal health.
    www.nationalgeographic.org/encyclopedia/micropl…
    Microplastics consist of carbon and hydrogen atoms bound together in polymer chains. Other chemicals, such as phthalates, polybrominated diphenyl ethers (PBDEs), and tetrabromobisphenol A (TBBPA), are typically also present in microplastics, and many of these chemical additives leach out of the plastics after entering the environment.
    www.britannica.com/technology/microplastic
    When something made of plastic does break down, it fragments into small bits known as microplastics that can pollute and build up in the environment and leach chemicals. Scientists categorize degraded plastic waste products by size. Microplastics are tiny particles less than than five millimetres in diameter, or about the size of a sesame seed.
    www.cbc.ca/news/health/microplastic-nanoplastic-…
    Microplastics come from a variety of sources, including from larger plastic debris that degrades into smaller and smaller pieces. In addition, microbeads, a type of microplastic, are very tiny pieces of manufactured polyethylene plastic that are added as exfoliants to health and beauty products, such as some cleansers and toothpastes.
    oceanservice.noaa.gov/facts/microplastics.html
     
  3. What are microplastics? - NOAA's National Ocean …

    WEBDec 28, 2015 · Microplastics are small plastic pieces less than five millimeters long that can harm marine life and the environment. Learn about their sources, impacts, and how to reduce them from NOAA's Marine …

  4. Microplastics - National Geographic Society

    WEBOct 31, 2023 · Microplastics, as the name implies, are tiny plastic particles. Officially, they are defined as plastics less than five …

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      WEBFeb 27, 2024 · Tracey Woodruff, PhD, MPH, explains how microplastics can harm human health and fertility, and shares her personal strategies to avoid them. Learn how to choose safer food, water, and …

    • Landmark study links microplastics to serious health …

      WEBMar 6, 2024 · A study of 257 people undergoing surgery found that 60% had microplastics or nanoplastics in their arteries. Those with microplastics were more likely to have heart attack, stroke or death in …

    • Microplastics | Definition, Properties, & Plastic Pollution | Britannica

    • Microplastics are in our bodies. How much do they …

      WEBMay 8, 2023 · Scientists have found tiny plastic particles in the blood of anonymous donors and deep inside the lungs of surgical patients. The science is unsettled, but researchers say there is cause for concern …

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