From: Concentration-dependent systemic response after inhalation of nano-sized zinc oxide particles in human volunteers
Particle concentration
Median particle diameter
ZnO deposition rate
[mg/m3]
[nm]
(sum of tracheobronchial,
(alveolar)
inhalable and alveolar)
0.5
47.8
78%
48%
1.0
62.8
74%
47%
2.0
85.8
66%
44%