| Nominal MnSO4 exposure concentration (mg/m3) | |||
---|---|---|---|---|
 | 0.18 | 0.92 | 4.62a | 4.62b |
Actual exposure concentration (mg MnSO4/m3)c | 0.19 ± 0.01 | 0.97 ± 0.06 | 4.55 ± 0.33 | 4.45 ± 0.35 |
Geometric mean diameter (μm)d | 1.04 | 1.07 | 1.12 | 1.04 |
Geometric standard deviation (σg)d | 1.51 | 1.54 | 1.58 | 1.50 |
Mass median aerodynamic diameter (μm)e | 1.73 | 1.89 | 2.12 | 1.72 |