Health
Toxic chemicals from microplastics can be absorbed through the skin
Toxic chemicals used in flame-retardant plastic materials can be absorbed into the body through the skin through contact with microplastics, a new study has found.
This study provides the first evidence that chemicals present as additives in microplastics can leach into human sweat and be absorbed through the skin and into the bloodstream.
Many chemicals used as flame retardants and plasticizers have already been banned due to evidence of adverse health effects, including damage to the liver and nervous system, cancer, and reproductive health risks. However, these chemicals are still present in the environment, including in old electronics, furniture, carpets, and building materials.
Although the harm caused by microplastics is not fully understood, there is growing concern about their role as a route through which the human body is exposed to toxic chemicals.
In a study published last year, researchers demonstrated that chemicals leach from microplastics into human sweat. Current research shows that these chemicals can be absorbed into the body through the skin barrier from sweat.
In the experiment, the research team used an innovative 3D human skin model as a replacement for laboratory animals and resected human tissue. The models were exposed over a 24-hour period to two common forms of microplastics, including polybrominated diphenyl ethers (PBDEs), a chemical group commonly used in flame-retardant plastics.
Result is, environment internationalshowed that up to 8% of exposed chemicals can be taken up by the skin, with more hydrated or “sweaty” skin absorbing higher levels of chemicals. . This study provides the first evidence of how this process contributes to the levels of toxic chemicals found in the body.
Dr Ovokeloe Abafe, currently at Brunel University, carried out the research while at the University of Birmingham. “Microplastics are ubiquitous in the environment, but we still know little about the health problems they cause. Our research shows that microplastics play a role as a carrier for harmful chemicals. Microplastics can enter our bloodstream through our blood vessels.'' These chemicals are persistent in our skin, so we are exposed to them on a continuous or regular basis. It gradually accumulates and begins to cause harm. ”
Dr Mohamed Abdallah, Associate Professor of Environmental Science at the University of Birmingham and lead researcher on the project, said: “These findings provide important information for regulators and policy makers to improve legislation on microplastics and protect them from harmful exposure. “This provides important evidence to protect public health.”
Professor Stuart Hallad, co-author of the paper, said: “This study provides an important step forward in understanding the risks that exposure to microplastics poses to our health. Based on our results, we believe that human Further research is needed to fully understand the different routes of exposure.” Learn about the impact on microplastics and how to reduce the risks from such exposure. ”
In future studies, the researchers plan to investigate other routes by which microplastics can cause toxic chemicals to enter the body, such as inhalation or ingestion. This research was funded by a Marie Curie Research Fellowship within the European Union's Horizon 2020 Research and Innovation Programme.
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Sources 2/ https://www.sciencedaily.com/releases/2024/04/240419131901.htm The mention sources can contact us to remove/changing this article |
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