From environment to humans: The journey of microplastics and their consequence
Siddhartha Jana
Microplastics, defined as plastic particles 5mm or less, have been extensively studied since their identification 20 years ago, revealing their widespread presence in the environment, wildlife, and humans.
Source: Canva
Research indicates that microplastics pose toxic effects at various biological levels, affecting everything from insects to apex predators, and are prevalent in food and drink.
Source: Canva
Major sources of microplastics include cosmetic products, synthetic textiles, vehicle tyres, and agricultural plastics, with some created unintentionally as larger plastics break down.
Source: Canva
The environmental influx of microplastics is significant, with estimates suggesting that 10 to 40 million tonnes enter the environment annually, and releases could double by 2040.
Source: Canva
Microplastics have been found in over 1,300 animal species, harming them through ingestion and the release of harmful chemicals, leading to issues like blocked intestines.
Source: Canva
They are detected in human food, water, and air, affecting various products like seafood, salt, and beer, though exact exposure levels can vary widely among individuals.
Source: Canva
Microplastics have been identified in human organs, including lungs and brains, and while some are expelled, many persist in the body, raising concerns about health effects such as inflammation and potential cancer risk.
Source: Canva
Growing public concern necessitates stronger regulations, such as the UN's Global Plastics Treaty, which should focus on reducing microplastics specifically and involve community engagement to foster support for necessary changes.
Source: Canva
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