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Particle size distribution (PSD) of TiO2 measured in plasma, spot urine, and exhaled breath condensate (EBC) in study C (sunscreen + UV irradiation). Resolution 1 nm.
| Sample No/Group | TiO2 Plasma (nm) | TiO2 Urine (nm) | TiO2 EBC (nm) |
|---|---|---|---|
| 1 All subjects | <LOD | <LOD | <LOD |
| 2 Men | <LOD | <LOD | <LOD |
| 2 Women | 6.1 | 5.2 | <LOD |
| 3 Men | 6.8 | 5.0 | <LOD |
| 3 Women | 7.2 | 5.8 | <LOD |
| 4 Men | 7.4 | 5.4 | <LOD |
| 4 Women | 8.2 | 6.4 | <LOD |
| All samples Mean ± SD |
7.1 ± 0.7 | 5.6 ± 0.5 | <LOD |
