The impact of microplastics on the cardiovascular system has become a growing concern for researchers. A recent study published in Environmental International examined the presence of microplastics in human blood. The findings revealed that 18 out of 20 blood samples contained 24 different polymer types, with most microplastics being white or clear fragments. These results indicate that microplastics can travel throughout the body and may contribute to cardiovascular issues such as vascular inflammation or changes in blood clotting function.
Researchers collected blood samples from healthy participants and compared them to procedural blank samples to account for potential contamination. They found that 40% of participants had a quantifiable amount of microplastics in their blood, with most particles being fragments with a clear or white appearance. The study identified a number of microplastic types, including polyethylene, ethylene-propylene-diene, and ethylene-vinyl-acetate/alcohol. The average size of the microplastics ranged from 7-3000 µm in length and 5-800 µm in width.
Despite the intriguing findings, the study has some limitations. Researchers acknowledge the challenges in accounting for potential contamination, estimating the mass of microplastic polymers, and identifying particle composition based on the criteria used. They also noted limitations in the digestion of organic material and the use of specialized filters for particle removal. Independent scientists have raised questions about the methodology and the possibility of contamination during sample preparation.
While more research is needed to fully understand the implications of microplastics on human health, the current study highlights the potential risks associated with microplastics in the bloodstream. These risks include issues with blood clotting, vascular inflammation, immune system changes, and the buildup of microplastics in organs. Researchers emphasize the need for further investigations to identify areas where microplastics may accumulate in the body and determine potential tissues at greater risk.
Experts suggest that interventions may be necessary to address the challenges posed by the presence of microplastics in the human body. As plastic production continues to increase, government action may be essential to prevent adverse health effects associated with microplastics. While the study provides valuable insights into the presence of microplastics in human blood, additional research is needed to fully understand the impact of these particles on cardiovascular health and overall well-being.
