Table 2 Personal total dust exposures during different activities among coffee workers and controls
Total Dust levels (mg/m3) | |||||
|---|---|---|---|---|---|
Activity | n | GM (GSD) | AM | Median | Range |
All Controls | 19 | 0.21(2.4) | 0.29 | 0.20 | 0.04 - 1.20 |
All Coffee workers | 44 | 1.23(0.8) | 2.97 | 1.05 | 0.25 - 36.0 |
Sampling and supervision | 12 | 0.68(2.0) | 0.86 | 0.62 | 0.32 - 2.50 |
Handling parchment coffee | 6 | 1.02(1.5) | 1.07 | 1.05 | 0.52 - 1.50 |
Feeding the hopper | 5 | 1.63(1.7) | 1.81 | 1.60 | 0.77 - 3.10 |
Sorting of green coffee | 7 | 1.11(2.4) | 1.57 | 0.95 | 0.43 - 4.00 |
Husks handling | 2 | 1.33(1.5) | 1.34 | 1.34 | 0.97 - 1.70 |
Sweeping, cleaning coffee grade F | 6 | 8.20(3.7) | 14.2 | 7.55 | 1.70 - 36.0 |
Machine repair | 6 | 0.73(2.3) | 0.96 | 0.77 | 0.25 - 2.40 |