The paper is titled, "Transport and deposition of microplastics and ... team's modeling found that breathing rate along with particle size and shape determined where in the respiratory system ...

The findings are in line with others linking larger particle size air pollutants to the ... "including direct injury to the lung via particle deposition and absorption, systemic inflammatory ...

Approximately 70% of the dose of flunisolide HFA has a particle size within the respirable range (<4.7µm), resulting in extensive lung deposition. In contrast, the respirable fraction of a dose ...