Table 4.
Effects of carbon black on the lung
| Experiment period | Parameters | Control | Group N | Group S |
|---|---|---|---|---|
|
| ||||
| 3 day | Absolute weight (g) | 2.78 ± 0.16 | 2.66 ± 0.20 | 2.70 ± 0.15 |
| Relative weight (g/100 g body weight) | 0.75 ± 0.08 | 0.71 ± 0.06 | 0.72 ± 0.04 | |
| Number of carbon black clumps | ND | 20.20 ± 7.66 | 33.20 ± 9.23 | |
| Concentration of carbon black (mg/g lung) | ND | 1.439 ± 1.571 | 4.551 ± 1.883* | |
| 2 week | Absolute weight (g) | 2.25 ± 1.68 | 2.41 ± 0.20 | 2.38 ± 0.22 |
| Relative weight (g/100g body weight) | 0.74 ± 0.04 | 0.76 ± 0.03 | 0.75 ± 0.08 | |
| Number of carbon black clumps | ND | 22.83 ± 7.65 | 41.83 ± 11.5 | |
| Concentration of carbon black (mg/g lung) | ND | 5.327 ± 2.589 | 13.54 ± 5.666* | |
Values presented as mean ± standard deviation.
* Statistically significant from group N. Group N: group of rats exposed to carbon black aerosols without sonication. Group S: group of rats exposed to carbon black aerosols with sonication. ND, not determined.