People inhale the harmful plastic particleswhich are concentrated inside the nose and back of the throat, he finds research published in the journal “Physics of Fluids”.

According to research, people can inhale the equivalent of a credit card worth of microplastics in a week. And these microplastics usually contain toxic pollutants and chemicals.

The research team developed a computational fluid dynamics model to analyze the transport and deposition of microplastics in the upper respiratory tract. He then investigated the movement of microplastics of different shapes and sizes under slow and fast breathing conditions. Microplastics tend to concentrate in places in the nasal cavity and oropharynx or back of the throat.

Inhaled microplastics can cause serious health risks, so understanding how they travel through the respiratory system is essential to prevent and treat respiratory disease.