Microplastics are now ubiquitous, even in human blood. A team of researchers from the Netherlands has demonstrated for the first time the presence of these tiny industrial polymers in blood samples from 22 healthy adult volunteers. Analyzes showed that 77% (17 donors) had it in their blood a quantifiable concentration of plastic fragments with dimensions greater than 700 nm. An average concentration of 1.6 micrograms per milliliter (µg/ml) was also observed in the plastic particles found.
In qualitative terms, the researchers then highlighted that half of the samples contained PET plastic, which is commonly used in beverage bottles, while a third contained polystyrene, which is used to package food and other products. Although the study was conducted on a small group of samples, it showed a first measurement of the polymer component of plastic in human blood. A groundbreaking biomonitoring research that reveals what microplastics are like easily absorbed into our bloodstream and probably that of every other animal species. “There is now a need the researchers comment to better understand the level of exposure to these substances, as well as the associated danger.”
In short, results as surprising as expected. In fact, microplastics — fragments formed when polymer waste is broken down — are already literally everywhere on the planet. From the peaks of Everest to remote Antarctica, through seas, forests and landscapes: there is no longer any terrestrial compartment free of this pollutant. The effects of such widespread contamination on ecosystems and biodiversity are largely unknown. However, those shown, as they range from reproductive complications to cardiovascular problems, do not bode well. Whether it is a public health issue has yet to be determined, that’s for sure Microplastics can accumulate in our organism. To reiterate the concept, consider for example that these microscopic plastic fragments were even found in the human placenta two years ago. The result of an unsustainable life cycle of plastics from production to disposal, for which at least 13 million tons of plastic waste are released into the environment every year and then make their way through the food web to our tables.
[di Simone Valeri]