Field and Laboratory Measurements Related to Occupational and Consumer Exposures - Safety of Nanomaterials along Their Lifecycle - page 290

TABLE 13.2 ( continued )
Publications on Relatively Low Energy Handling and Transfer of (Source Domain 2)
Reference Nanomaterials Metric Information Conclusion

Tsai et al. (2010) Al NC, PSD Three hood designs (constant-

low, constant-velocity, and air
curtain hoods), manual
handling of nano aluminum,
low amounts of 100 g

Constant-low hood: high variability in exposure; constant-velocity
varied by operating conditions: very low exposure, new air curtain
hood: exposure barely detected

Tsai et al. (2011) SiO 2 , CB,

CaCO 3

PM, NC, PSD Mixing of SiO 2 (40 kg) 2-5

times a day, dumping CB 600
kg per bag, 100 bags a day,
dumping CaCO 3 25 kg per bag,
900 bags a day

Mixing SiO 2 : total mass 4,653 µg/m 3 , dumping CB 732 µg/m 3 ,
dumping CaCO 3 510 µg/m 3 . In addition, powders were tested with
rotating drum MMAD (µm) 4.61 (2.4), 6.15 (2.3), 5.23 (2.7) for
SiO 2 , CB, CaCO 3 , respectively

Abbreviations: EC, elemental carbon; GSD, geometric standard deviation.