fig3
![Regional deposited dose in the human respiratory tract using different particulate metrics](https://image.oaes.cc/64f0fa13-2a1d-42a0-b571-e9f9451983be/5060.fig.3.jpg)
Figure 3. Hourly exposure concentrations of (A) PM10 and (B) PN10 and the corresponding deposited dose rates based on (C) mass and (D) number metrics during cold and warm periods. AI: Alveolar-interstitial; ET: extrathoracic; PM: particle mass; PN: particle number; TB: tracheobronchial.