Table 1.
The size distribution characteristics of TiO 2 in air and saline
| Medium | Concentration | Size distribution |
|---|---|---|
| Air |
33 ± 4 mg/m3 |
MMAD 800 nm, 1.4 GSD |
| CMD 900 nm, 1.8 GSD | ||
| Saline | 80 μg/mL | DLS z-avg 1350 nm, peak range 800–1700 nm |
| LDS mean 6363 nm, peak range 900–11000 nm |
MMAD, mass median aerodynamic diameter; CMD, count median diameter; GSD, geometric standard deviation; DLS, dynamic light scattering (intensity mode); LDS, laser diffraction spectroscopy (volume-based). DLS and LDS are representative of 3 separate runs.