Table 1 Concentrations of inhalable dust and super absorbent polymer (SAP) among workers in two plants producing hygiene products.
Occupations or department | N | Arith-metic Mean | Range | Geometric Mean | Geometric standard deviation | 95% confidence intervals |
|---|---|---|---|---|---|---|
Machine operators | ||||||
Inhalable dust, mg/m3 | 41 | 1.37 | 0.17-23.9 | 0.53 | 2.66 | 0.07-3.5 |
SAP, mg/m3 | 41 | 0.02 | 0.002-0.23 | 0.01 | 2.75 | 0.002-0.09 |
Mechanics | ||||||
Inhalable dust, mg/m3 | 19 | 1.64 | 0.14-15.4 | 0.47 | 2.29 | 0.09-2.39 |
SAP, mg/m3 | 19 | 0.81 | 0.002-10.3 | 0.03 | 2.67 | 0.005-0.24 |
Development department | ||||||
Inhalable dust, mg/m3 | 37 | 0.40 | 0.05-1.51 | 0.27 | 2.52 | 0.04-1.65 |
SAP, mg/m3 | 37 | 0.03 | 0.002-0.40 | 0.01 | 3.45 | 0.008-0.11 |