By George George Idowu
A recent study by Cornell University researchers has revealed that people around the world ingest microplastics, with higher prevalence in Southeast Asia.
Microplastics are plastic particles smaller than 5mm that can enter the human body through various means and have potential long-term health effects. Here are four key points about microplastics and their impact on your health.
The Cornell study revealed that people, especially in Asia, consume about three credit cards’ worth of microplastics – approximately 15g – every week, primarily through food. Ready-made meals, disposable cutlery, bottled water, and sauce packets can all shed microplastics into your food.
Drinking three cups of hot coffee from plastic-lined paper cups can result in the ingestion of around 75,000 micron-sized plastic particles.
Seafood lovers may consume even more microplastics, as these particles enter the oceans through waste run-off and degrade into smaller pieces that marine animals mistake for food.
In addition to ingesting microplastics, we also inhale millions of these particles daily. Synthetic clothing sheds microfibers into the air, and industrial emissions contribute to airborne microplastics.
Southeast Asians inhale an estimated 2.8 million particles per day, compared to 0.3 million particles inhaled by people in northwestern Europe. This higher exposure is linked to extensive plastic production and ocean activities in the region.
Scientists are investigating how ingested or inhaled microplastics move from the gut and lungs to other organs and tissues.
While larger particles are usually excreted, smaller microplastics can remain in the body, causing inflammation and potentially releasing harmful chemicals that disrupt hormones and increase cancer risk. Inhaled particles may trigger respiratory issues like coughing and asthma.
Microplastics can enter the bloodstream and travel to various body parts, including reproductive organs. Studies have found microplastics in men’s testicles, potentially reducing fertility and causing gene mutations.
In women, microplastics have been detected in the placenta, raising concerns about fertility, fetal development, and long-term health risks for the baby.
The presence of microplastics in everyday life is a growing concern, especially for Southeast Asians who face higher exposure levels. Understanding how these particles affect our health is crucial as researchers continue to study their long-term impacts. Awareness and efforts to reduce plastic use and pollution can help mitigate these risks and protect public health.
