Particle release and control of worker exposure during laboratory-scale synthesis, handling and simulated spills of manufactured nanomaterials in fume hoods

Journal of Nanoparticle Research : an Interdisciplinary Forum for Nanoscale Science and Technology
Ana S FonsecaIsmo K Koponen

Abstract

Fume hoods are one of the most common types of equipment applied to reduce the potential of particle exposure in laboratory environments. A number of previous studies have shown particle release during work with nanomaterials under fume hoods. Here, we assessed laboratory workers' inhalation exposure during synthesis and handling of CuO, TiO2and ZnO in a fume hood. In addition, we tested the capacity of a fume hood to prevent particle release to laboratory air during simulated spillage of different powders (silica fume, zirconia TZ-3Y and TiO2). Airborne particle concentrations were measured in near field, far field, and in the breathing zone of the worker. Handling CuO nanoparticles increased the concentration of small particles (< 58 nm) inside the fume hood (up to 1 × 105 cm-3). Synthesis, handling and packaging of ZnO and TiO2nanoparticles did not result in detectable particle release to the laboratory air. Simulated powder spills showed a systematic increase in the particle concentrations inside the fume hood with increasing amount of material and drop height. Despite powder spills were sometimes observed to eject into the laboratory room, the spill events were rarely associated with notable release of particles from the f...Continue Reading

References

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Citations

Dec 15, 2018·Annals of Work Exposures and Health·Apostolos SalmatonidisMar Viana
Mar 11, 2020·Annals of Work Exposures and Health·Marie Louise KirkegaardKeld Alstrup Jensen
Jan 13, 2021·International Journal of Environmental Research and Public Health·Ana Sofia FonsecaJoonas Koivisto

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