As per research, every hour a person inhales around 16 particles of microplastic

Plastic granules

Physicists have simulated the movement of microplastic particles through human upper respiratory pathways. It turns out that about 16 micro-particles with a diameter of 1.6 to 5.5 microns settle in the airways every hour. Plastic accumulates in the nasal cavities and oral part of the throat.

Scientists believe that their model will help their colleagues to assess the impact of microplastics on the human body and develop methods to protect people in polluted regions of the world. The tone of the modified text is calm.