Microplastics are already circulating in our blood, new study finds

Scientists first discovered the presence of microplastics in human blood. A study published in the journal International Environment and reported by Guardian details the presence of polymer particles in the blood.

After analyzing samples from 22 adults, scientists found traces of PET, polystyrene and polyethylene in the blood of 17 of them. Of all, PET was the most important, present in half of the cases. In some participants, up to three types of microplastics were detected in their bodies.

The study considered five high volume polymers: polypropylene, polymerized styrene, polyethylene, polymethyl methacrylate and polyethylene terephthalate. The researchers based their methodology on previous work and considered particles between 700 nanometers and 0.514 millimeters.

Research from the Vrije University of Amsterdam supports the hypothesis that human exposure to plastic particles leads to their absorption into the bloodstream.

From toothpaste to tattoo ink

Many aesthetic or hygienic substances contain microplastics

According to Professor Dick Vethaak, an ecotoxicologist at Vrije University in Amsterdam, the study is the first indication of polymer particles in the blood.