Every breath you take: Study models the journey of inhaled plastic particle pollution

Respiratory Hotspots: Plastic particles accumulate in key areas like nasal cavities and lungs, posing health risks.

Breathing Rate Impact: Faster breathing rates lead to upper respiratory tract deposition, while slower rates result in deeper lung penetration.

Particle Size Variation: Deposition patterns differ based on the size of plastic particles, affecting their distribution in the respiratory system.

Particle Shape Influence: Non-spherical particles penetrate deeper into the lungs compared to spherical ones, potentially causing varied health outcomes.

Health Risk Assessment Importance: Understanding breathing rates and particle characteristics is crucial for assessing health risks associated with nano and microplastics in the respiratory system.