Field application of a newly developed personal nanoparticle sampler to selected metalworking operations

Li Hao Young, Yun Hua Lin, Tzu Hsien Lin, Perng Jy Tsai, Ying Fang Wang, Shao Ming Hung, Chuen Jinn Tsai, Chun Wan Chen

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)


A personal nanoparticle sampler (PENS) that simultaneously collects respirable particles (< 4 μm) and nanoparticles (< 0.1 μm) has recently been developed and calibrated in the laboratory. This study aims to evaluate the performance of the PENS in the workplace, and to determine the exposure characteristics during selected metalworking operations. Metal polishing/buffing, spot welding, and milling operations were selected to represent sources of solid metal particles, fume aggregates and metalworking fluid mists, respectively. In each operation, personal samples of a side-by-side PENS and SKC respirable dust aluminum cyclone were taken concurrently with ambient particle number size distribution measurements. The PENS-measured respirable particle mass concentrations (PM4) showed remarkable accuracy with respect to the reference SKC cyclone, regardless of particle type. The PENS-derived nanoparticle effective densities agreed reasonably well with the bulk densities expected for the substrate and materials in use. During the metalworking operations, the nanoparticle mass concentrations (PM0.1) were poorly associated with the PM4 but strongly correlated with the ambient nanoparticle number concentrations (PN0.1), due to the persistent, elevated levels of nanoparticles formed during the operations. Overall, these results suggest that the PENS is applicable for use in the workplace to assess respirable and nanoparticle personal exposure, and that metal polishing/buffing, welding and milling generate a considerable amount of nanoparticles.

頁(從 - 到)849-861
期刊Aerosol and Air Quality Research
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • 環境化學
  • 污染


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