When indulging in a delightful piece of fish or a seafood feast, we not only benefit from essential omega-3s and vitamin D but also unintentionally consume a less palatable component – an abundance of micro- and nano-plastics.
These minuscule plastic particles, less than 5 millimetres in size, infiltrate our oceans through human waste, infiltrating the marine food chain. An Ifremer study discovered approximately 24,400 billion microplastics floating on the ocean’s surface.
From microalgae to fish, these particles infiltrate all marine organisms, endangering ecosystems and posing potential health risks to humans.
The accumulation of these pollutants in marine life and their threats to human health is a topic of concern.
Since the 1950s, plastic production has skyrocketed, resulting in vast amounts of waste. These plastics break down over time into microplastics and nanoplastics, contaminating the environment in its entirety.
The phenomenon of plastics accumulating in organisms across various food chain levels is termed ‘bioaccumulation.’
Studies have shown that microplastics can have detrimental effects on marine animals, causing digestive system blockages, immune responses, DNA damage, and genetic interference.
High levels of phthalates present in plastics are endocrine disruptors, potentially posing risks to marine and human health.
Consuming seafood contaminated with microplastics can lead to ingestion of thousands of particles annually, raising concerns about potential health impacts on humans.
The urgent need to address plastic bioaccumulation in the food chain calls for swift action in reducing plastic usage and enhancing recycling technologies, combating this environmental and health crisis.
Amélie Châtel, Professor in Aquatic Ecotoxicology, Catholic University of the West
This article has been republished from The Conversation under a Creative Commons license. You can access the original article here.
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