Microplastics Inhalation Exceeds Dietary Intake, New Research Reveals
New findings indicate humans inhale significantly more microplastics daily than they ingest through food, raising concerns about respiratory and systemic health impacts. A recent study highlights that an adult inhales approximately 68,000 microplastic particles (1-10 micrometers) each day, with 94% of those particles being smaller than 10 micrometers, including fragments. This intake surpasses exposure from consuming microplastics in food and water.
The tiny particles, when inhaled, travel deep into the lungs, potentially causing cellular irritation, inflammation, or even entering the bloodstream. Larger particles are typically transported to the throat via mucus and subsequently swallowed, adding strain to the gastrointestinal system.
Common plastics found in homes, like polyethylene (PE), and those in vehicles, such as polyamide (PA), contribute to this pervasive exposure. However, the danger extends beyond the particles themselves. Many plastics contain harmful additives that can dissolve upon inhalation and enter the body, potentially disrupting the endocrine system, promoting inflammation, or even exhibiting carcinogenic properties.
Experts recommend several measures to reduce microplastic burden, including:
* Regular ventilation, particularly with new furniture or carpets.
* Prioritizing natural materials like cotton and wood.
* Using tumble dryers that vent outside.
* Opting for furniture and kitchenware made of glass, metal, or wood.
Researchers are advocating for increased consideration of microplastic exposure in epidemiological and occupational medicine studies, suggesting a potential link to lung and intestinal diseases, and also immune system disorders.
