Table 1.
Measurements of dust for carpenters (GM, GSD, and AM)
| Number of measurements | Average sampling time (min) | Sampling time (min-max) (min) | Number of <LOD | GM mg/m3 GSD | AM mg/m3 | min-max | ||
|---|---|---|---|---|---|---|---|---|
| Total dust | ||||||||
| Gypsum, installation | 8 | 346 | 296–401 | 0 | 2.22 | 1.77 | 2.63 | 1.40–7.00 |
| Ceilings, installation | 12 | 281 | 211–292 | 0 | 0.86 | 3.92 | 1.56 | 0.08–4.00 |
| Installation of windows, doors | 5 | 308 | 262–433 | 0 | 0.61 | 1.78 | 0.69 | 0.32–1.00 |
| Installation of floors | 4 | 240 | 233–245 | 0 | 1.00 | 1.80 | 1.14 | 0.52–1.70 |
| Insulation | 5 | 232 | 100–289 | 0 | 1.59 | 1.13 | 1.60 | 1.30–1.80 |
| Wood work | 2 | 219 | 101–336 | 0 | 1.57 | 1.31 | 1.60 | 1.30–1.90 |
| Other (stiffening of beams) | 2 | 206 | 167–244 | 0 | 5.50 | 1.82 | 6.00 | 3.60–8.40 |
| Total | 38 | 280 | 100–401 | 0 | 1.26 | 2.90 | 1.94 | 0.08–8.40 |
| Respirable dust | ||||||||
| Gypsum, installation | 8 | 213 | 185–250 | 0 | 0.57 | 1.75 | 0.67 | 0.27–1.50 |
| Ceilings, installation | 0 | - | - | 0 | - | - | - | - |
| Installation of windows, doors | 5 | 205 | 196–239 | 1 | 0.18 | 1.75 | 0.20 | <0.07–0.31 |
| Installation of floors | 2 | 244 | 239–249 | 0 | 0.24 | 1.22 | 0.25 | 0.20–0.30 |
| Insulation | 3 | 200 | 177–247 | 1 | 0.15 | 1.67 | 0.17 | <0.09–0.30 |
| Wood work, milling and cutting | 5 | 198 | 187–248 | 1 | 0.16 | 1.42 | 0.17 | <0.09–0.24 |
| Other | 2 | 202 | 196–208 | 0 | 0.42 | 1.85 | 0.46 | 0.27–0.65 |
| Total | 25 | 210 | 177–250 | 3 | 0.27 | 2.13 | 0.37 | <0.09–1.50 |
Notes: GM geometric mean, GSD geometric standard deviation, AM arithmetic mean, <LOD below level of detection