Microplastics aren’t just polluting oceans and soil anymore. Scientists have now found them in human stool, placenta, and even blood. Indoors is often the biggest source, as fibers from carpets, clothing, and furniture shed tiny particles into the air we breathe and the dust we swallow. Toddlers are most at risk, with exposure levels up to twelve times higher than adults.

Once inside, these plastics don’t always pass through. They can irritate the gut lining, disrupt the microbiome, and carry toxic chemicals like phthalates and heavy metals. Early evidence suggests they may contribute to gut issues, metabolic disorders, and other long-term health risks, though more research is needed.

Experts say lowering indoor exposure is key. Good ventilation, HEPA filters, and choosing natural fibers such as cotton or hemp can all help. Scientists warn that microplastics are no longer just an environmental problem — they’re a growing public health concern.

SOURCE:

Medical Life Sciences, August 31, 2025