Plastics never fully decompose. The material just eventually breaks down into small pieces called microplastics.
previously found the presence of microplastics in human lung tissues obtained from autopsies.
The results of the recent lung tissue study do not tell us anything about whether these microplastics cause damage to the lungs or harm the person inhaling them. Still, it provides information about the size of microplastics retained in the lung and where they can be found, which is useful in determining the extent of their impacts on human health, says Hahn.
“To perform meaningful trials on human health impacts of microplastics, it is critical to know what type of plastics are in us, where they are in us, how many and what size,” says Couceiro. Knowing that microplastics can be found in the blood, researchers may begin trials to study whether they can block blood vessels or disrupt organ functions, she adds.Microplastics are considered as an emerging pollutant since scientists only recently realized that they exist, says Couceiro.
The levels of exposure of having microplastics inside the body are not yet understood because they are so difficult to measure, especially the particles smaller than 10 micrometers that are thought to be most easily transported in the body, says Hahn.
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