Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Modeled lung burden estimates with clearance.
| Days of exposure | Particle mass remaining at the end of exposure (μg) | |||
|---|---|---|---|---|
| Nose | Tracheobronchial | Alveolar | Total Lung | |
| 1 | 0.5 | 0.2 | 0.8 | 1.0 |
| 4 | 0.5 | 0.3 | 3.2 | 3.5 |
| 8 | 0.5 | 0.3 | 5.9 | 6.2 |
| 15 | 0.5 | 0.3 | 9.2 | 9.5 |
| 30 | 0.5 | 0.3 | 12.1 | 12.4 |
