The average 8-hour time-weighted average for total dust during sanding was 19.19 mg/m 3 for site 1 and 10.21 mg/m 3 for site 2.
(The average 8-hour time-weighted average for total dust during sanding; was; ) (mg; m; 3 for site 2)
The average 8-hour time-weighted average for total dust during sanding mg
was m
3 for site 2