Table 1 Personal "total" dust exposure (n = 50) among cement factory workers
From: Cement dust exposure and acute lung function: A cross shift study
Cement dust exposure | |||||
|---|---|---|---|---|---|
n | AMa (SD)b (mg/m3) | Median (range) (mg/m3) | GMc (GSD)d (mg/m3) | % >TLVe | |
High-exposed groups | |||||
Crusher | 20 | 48.8 (31.9) | 43.2 (8.8-127.8) | 38.6 (2.13) | 95.0 |
Cleaning | 4 | 99.1(20.2) | 93.4(81.7-127.8) | 97.6(1.2) | |
Other tasks | 16 | 36.3(19) | 40.1(8.8-71.7) | 30.6(1.9) | |
Packing | 20 | 44.0 (81.2) | 15.7 (2.3-371.8) | 18.5 (3.59) | 60.0 |
Cleaning | 3 | 175.2(170.2) | 80.4(73.4-371.8) | 129.9(2.5) | |
Other tasks | 17 | 20.7(20.2) | 12.6(2.3-62.3) | 13(2.7) | |
Crusher and packing | 40 | 46.4 (70.0) | 35.9 (2.3-371.8) | 26.7 (3.01) | 77.5 |
Low-exposed group | |||||
Guards | 10 | 0.5 (0.3) | 0.4 (0.18-0.9) | 0.4 (1.73) | 0 |