Particle size distributions and health-related exposures of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) of sinter plant workers

Tung Sheng Shih, Minliang Shih, Wen Jhy Lee, Sheng Lung Huang, Lin Chi Wang, Yu Cheng Chen, Perng Jy Tsai

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

This study measured particle size distributions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in two workplace atmospheres of the sintering grate and rough roll shredder in a sintering plant, and to assess their workers' health-related exposures. We found that the PCDD/F concentration of the sintering grate (site A = 14.47 pg m-3) was lower than that of the rough roll shredder (site B = 17.20 pg m-3). Particle size distributions of PCDD/Fs were in the form of the unimodal with the mass median aerodynamic diameter (MMAD) of 4.74 μm and 5.23 μm, and geometric standard deviation (σg) of 3.15 and 2.15 for the site A and B, respectively. The above results suggest that the workplace of the site A had a less fraction of coarse particles than that of the site B. The estimated PCDD/F concentrations of the inhalable fraction (11.0 pg m-3) and thoracic fraction (8.89 pg m-3) of the site A were lower than those of the site B (12.4 and 9.39 pg m-3, respectively). But to the contrary the estimated respirable fraction of the site A (5.05 pg m-3) was slightly higher than that of the site B (4.93 pg m-3). Our results clearly indicate the importance to conduct particle size segregating samplings for assessing human PCDD/F exposures.

原文English
頁(從 - 到)1463-1470
頁數8
期刊Chemosphere
74
發行號11
DOIs
出版狀態Published - 2009 三月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 化學 (全部)
  • 環境化學
  • 污染
  • 公共衛生、環境和職業健康
  • 健康、毒理學和誘變

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