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Body and lung weights and the deposited amounts in each group
| Whole-body inhalation | Nose-only inhalation | Control | |
|---|---|---|---|
| Body weight before the exposure (g) | 236 ± 9 | 240 ± 2 | 240 ± 9 |
| Body weight after the exposure (g) | 238 ± 9 | 227 ± 7 | 242 ± 9 |
| Wet lung weight (g) | 0.895 ± 0.056 | 0.785 ± 0.034* | 0.901 ± 0.034 |
| Lung weight/body weight (%) | 0.376 ± 0.015 | 0.346 ± 0.010 | 0.373 ± 0.012 |
| Deposited TiO2 in lung (μg) | 42.6 ± 3.5 | 46.0 ± 7.7 |
* Statistical difference (P < 0.01) compared with control group
