Table 4 Incidence of lung carcinoma and lung burden in rats exposed to MWNT-7 for 104 weeks
From: Lung carcinogenicity of inhaled multi-walled carbon nanotube in rats
Concentration (mg/m3) | Lung carcinoma incidence (%) | Lung burden | |||
|---|---|---|---|---|---|
Amount of MWNT-7 (ug/lung) | Number of MWNT-7 (fibers/lung) | Amount of MWNT-7 (ug/body weight:g) | Number of MWNT-7 (fibers/body weight:g) | ||
Male | |||||
 0 | 2 | - | - | - | - |
 0.02 | 2 | 10.0 | 0.09 × 109 | 0.029 | 0.26 × 106 |
 0.2 | 16 * | 152.4 | 1.38 × 109 | 0.434 | 3.92 × 106 |
 2 | 22 ** | 1797.8 | 16.2 × 109 | 4.954 | 44.7 × 106 |
Female | |||||
 0 | 0 | - | - | - | - |
 0.02 | 2 | 8.1 | 0.07 × 109 | 0.034 | 0.31 × 106 |
 0.2 | 0 | 118.4 | 1.07 × 109 | 0.453 | 4.09 × 106 |
 2 | 16 ** | 1154.1 | 10.4 × 109 | 4.712 | 42.5 × 106 |