Table 2 Fiber numbers in lungs and their proportions
From: Behavior of rock wool in lungs after exposure by nasal inhalation in rats
Sacrificed rat group | Total fibers | Fibers shorter than or equal to 5 μm (L ≤ 5 μm) | Fibers longer than 5 μm and shorter than or equal to 20 μm (5 μm < L ≤ 20 μm) | Fibers longer than 20 μm (L > 20 μm) | WHO fibers | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Geometric mean (GSD) | % | Geometric mean (GSD) | % | Geometric mean (GSD) | % | Geometric mean (GSD) | % | Geometric mean (GSD) | % | |
Shortly-after group | 9.43 (1.13) | 100.0 | 2.12 (1.24) | 100.0 | 6.08 (1.13) | 100.0 | 1.21 (1.14) | 100.0 | 7.09 (1.12) | 100.0 |
1-Week-after group | 7.42 (1.35) | 78.7 | 2.04 (1.50) | 96.3 | 4.75 (1.34) | 78.2 | 0.54 (1.83) | 44.9 | 5.20 (1.36) | 73.3 |
2-Weeks-after group | 7.68 (1.17) | 81.5 | 2.12 (1.16) | 100.3 | 5.07 (1.21) | 83.4 | 0.42 (1.73) | 34.7 | 5.45 (1.20) | 76.9 |
4-Weeks-after group | 5.05 (1.23)a,c | 53.6 | 1.59 (1.48) | 74.9 | 3.13 (1.24)a,c | 51.5 | 0.22 (2.27)a | 17.9 | 3.38 (1.25)a,b,c | 47.7 |