Research Article
Workplace Exposure to Titanium Dioxide Nanopowder Released from a Bag Filter System
Table 1
Aerosol detectors used in this study.
| | Specifications of instrument | Main set | Subset | Portable aerosol detector |
| Particle size distribution | 10–420 nm | SMPS (Nanoscan, TSI 3910) | | | <106 particles/cm3 | 0.25–32 μm | OPC (portable aerosol spectrometer, Grimm 1.109) | OPC (portable aerosol spectrometer, Grimm 1.109) | | <2 × 106 particles/L |
| Particle number concentration | 10–700 nm | | | Discmini (Matter Aerosol) | <106 particles/cm3 @20 nm | <5 × 105 particles/cm3 @100 nm |
| Lung-deposited surface area | 10–1,000 nm | NAM (TSI AeroTrak 9000) | NAM (TSI AeroTrak 9000) | | <104 μm2/cm3 for A mode |
| SEM | | Filter sampler (pore size 100 nm) | | |
|
|