Efficiency of different respiratory protective devices for removal of particulate and gaseous reactive oxygen species from welding fumes

Hsiu Ling Chen, Shih Hsiang Chung, Ming Lin Jhuo

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

Ultraviolet (UV) light inherent to welding processes generates ozone (O3) with subsequent formation of reactive oxygen species (ROS) through photochemical reactions when UV light is present with O3. This study aimed to determine the performance of filters used as respiratory protective devices by welding personnel to simultaneously mitigate particulate and gaseous inhalation hazards. Four respiratory protective devices were selected for this study, including a surgical facemask, a cotton-fabric facemask, an activated-carbon facemask, and an N95 respirator. The removal efficiencies for the particulates in welding fumes were all above 98%. For particulate-phase ROS, the removal efficiencies of the different respiratory protective devices ranged from 83.5% to 94.1%; however, the removal efficiencies for gaseous ROS were only 1.3% (active carbon facemask) to 21.1% (N95 respirator). The data indicated that the respiratory protective devices commercially available cannot block the passage of the gas-phase ROS found in welding fumes.

原文English
頁(從 - 到)101-106
頁數6
期刊Archives of Environmental and Occupational Health
68
發行號2
DOIs
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • Toxicology
  • Environmental Science(all)
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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