68,000 microplastics enter our body everyday – French Study

A new study from France, published in Plos One, has revealed that humans may inhale up to 68,000 microscopic plastic particles every day, raising fresh concerns about the hidden dangers of microplastic pollution.

While earlier research focused on larger airborne plastic fragments, this study highlights the threat posed by much smaller particles—between 1 and 10 micrometers, about one-seventh the width of a human hair. These particles are particularly hazardous because they can penetrate deep into the lungs, enter the bloodstream, and circulate throughout the body.

Nadiia Yakovenko, co-author and researcher at the University of Toulouse, said that microplastic now found in human body is much higher than previously estimated. The study emphasizes that airborne microplastics represent a major, overlooked pathway.

Microplastics originate from consumer goods, textiles, packaging, and degrading household products. They contain thousands of chemicals, including BPA, phthalates, and PFAS, many of which are associated with cancer, hormonal disruption, and respiratory diseases. Alarmingly, microplastics have been detected in human organs, including crossing the placental and brain barriers.

The researchers found that indoor air contains far more microplastics than outdoor air, largely due to poor ventilation and the abundance of plastic materials indoors. Since people spend nearly 90% of their time inside, this poses a significant health risk.

The study held that everyday activities—walking, cooking, or even sitting on furniture—can stir up microplastics from carpets, clothing, and household goods, keeping them suspended in the air.

Car cabins were discovered to be even worse, with microplastic concentrations four times higher than in homes. The study traced these particles to vehicle interiors, including dashboards, steering wheels, and upholstery, where confined space and inadequate ventilation exacerbate exposure.

Health experts warn that long-term inhalation of microplastics could lead to chronic lung inflammation, respiratory illnesses, and even cancer. While it is nearly impossible to avoid them entirely, the researchers recommend reducing household plastic use by opting for natural alternatives like wood, metal, and cotton. Better ventilation indoors can also help lower concentrations.

The findings underscore an urgent need for further research and stronger policies to curb plastic pollution—not just in oceans and food, but in the very air we breathe.