A study by a team of British researchers on global microplastic contamination of seafood found that molluscs – such as squid, oysters, shellfish and snails – contain the highest concentration of microplastics, reports Science Daily.
A team from Hull York School of Medicine and Hull University investigated more than 50 separate studies between 2014 and 2020 regarding microplastic contamination.
They found that the content of microplastics among mollusks ranged between 0-10.5 microplastics per gram (MP / g). In contrast, the range of crustaceans is between 0.1-8.6 MP / g and only 0-2.9 MP / g in fish.
Molluscs from the Asian coast were the most polluted, which is probably the result of greater plastic pollution in the region.
“A critical step in understanding the full impact on human nutrition is to first fully determine what level of microplastics people are ingesting,” wrote report author Evangelos Danopoulos. “We can start doing this by looking at how much seafood and fish is eaten and measuring the amount of messengers in those creatures.”
The next step is to understand which specific parts of the body typically accumulate microplastics, he added, because some are consumed whole, while others are eaten only partially. Greater standardization of measurements between studies is also needed, so that results can be more easily compared between regions.