Job description | n | Mean (mg/m3) | Minimum (mg/m3) | Maximum (mg/m3) | Geometric mean (mg/m3) | Geometric SD |
Without local exhaust ventilation: | ||||||
Other than sanding2-150 | 56 | 5.51 | 0.43 | 36.09 | 3.5 | 2.47 |
Sanding2-151 | 57 | 12.74 | 0.76 | 61.44 | 7.86 | 2.01 |
With local exhaust ventilation: | ||||||
Other than sanding2-150 | 177 | 4.08 | 0.11 | 24.0 | 2.43 | 2.80 |
Sanding2-151 | 153 | 8.34 | 0.01 | 131 | 4.48 | 3.47 |