Tiny fragments of glass fiber, which are used in making small boats globally, have been discovered in the marine food chain for the first time. Researchers from the universities of Portsmouth and Brighton found the glass shards, measuring less than a millimeter, in shellfish caught off the south coast of England.
These needle-shaped fragments of fibreglass, also known as glass reinforced plastic, were so sharp that they had penetrated biological tissue. Professor Faye Couceiro, the lead researcher in environmental pollution, emphasized the urgent need for further research to understand the potential risk to humans who consume oysters and mussels.
The glass fiber found in the shellfish tissue is causing inflammation, raising concerns about human health implications. The material is strong, lightweight, and easily molded to create boats, making it a popular choice. However, when fibreglass is cut, sanded, or degrades over time, it produces a fine dust of fibers that can be washed into the sea.
The study focused on oysters and mussels collected near a boatyard in Chichester Harbour, a renowned sailing destination. Using a high-powered microscope, researchers discovered up to 11,220 fibreglass particles per kilogram of oysters and 2,740 per kilogram of mussels. While most were found in the stomachs and could be expelled, some fragments were in the flesh, posing a risk to consumers.
Professor Couceiro stressed the need for the shellfish industry to find ways to remove as many fragments as possible before consumption. Oysters and mussels are known to accumulate microplastics in their tissues as filter feeders, ingesting particles along with food while trapping fibers and other pollutants.
According to Professor Gordon Watson from the University of Portsmouth, the fibres have a significant impact on the growth of mussels and can be passed on to other organisms in the food chain. While the study focused on shellfish near a boatyard, researchers believe the issue is more widespread.
To address the problem, Professor Couceiro suggested that fibreglass boats should be disposed of in landfills if they cannot be recycled. Proper disposal of vessels is crucial to prevent these harmful particles from entering the environment and affecting marine life. The registration of vessels could help track ownership and ensure responsible disposal practices are followed.
In conclusion, the discovery of fibreglass fragments in the marine food chain highlights the need for more research and awareness about the potential risks to human health and the environment. Proper disposal of fibreglass materials and efforts to clean up coastal waters are essential to mitigate the impact on marine ecosystems.
