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Emergency and Continuous Exposure Limits for Selected Airborne Contaminants Volume 2 (1984) / Chapter Skim
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Sulfur Dioxide
Pages 95-102

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From page 95...
... These reviews covered epidemiologic reports, health effects of acute and chronic low-dose exposures of humans, health effects of acute and chronic low- and high-dose exposures of animals, projected estimates of pollutant thresholds for adverse effects of short- and long-term exposures, and correlations of sulfur dioxide exposures with asthmatic attacks and effects on children. EFFECTS ON HU1~9NS Few recent reports have described accidental exposure to sulfur dioxide.
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From page 96...
... An excellent review of studies involving control ed human exposure is available (Greenfield, Attaway and Tyler, 1976~. Briefly, the major health effects of exposure to sulfur dioxide at less than 25 ppm (for various durations)
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From page 97...
... A comprehensive review (Greenfield, Attaway and Tyler, 1976) of published literature on controlled animal exposures to sulfur dioxide may be summarized as for ows: Acute exposure of animals results in diminished pulmonary function similar to that seen in man, decreased tracheal mucus clearance, pneumonia, and lesions of the nasomaxillary turbinates.
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From page 98...
... It has been shown that inhaled sulfuric acid mists with droplets of 0.4-~.1 Am in mass median aerodynamic diameter have deposition patterns similar to those of dry aerosols and that the effect of hygroscopicity is not dominant in determining the site of deposition (Dahl _ al., 19833. Studies using [35S]
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From page 99...
... After reviewing the current literature, the Committee recommended no changes in the EELS and CEL. The present Committee's recommended EELS and CEL for sulfur dioxide and the limits proposed in 1966 are shown below.
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From page 100...
... 1983. Clearance of sulfuric acid-introduced 35S from the respiratory tracts of rats, guinea pigs and dogs following inhalation or instillation.
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From page 101...
... 1982. Review of the National Ambient Air Quality Standards for Sulfur Oxides: Assessment of Scientific and Technical Information.
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From page 102...
... 1974. Review of the health effects of sulfur oxides.
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Key Terms

  • pulmonary function
  • sulfuric acid
  • accidental exposure
  • respiratory tract
  • airway resistance

  • ambient sulfur
  • asthmatic subjects
  • inhaled sulfur
  • asthmatic adolescents
  • industrial hygienists

  • dioxide exposure
  • lung function
  • ambient air
  • acid mists
  • international electric

  • acute effects
  • power research
  • mucus clearance
  • tracheal mucus
  • asthmatic attacks

  • electric research
  • lung disease
  • mucus flow
  • dioxide concentrations
  • governmental industrial

  • research exchange
  • american conference
  • similar changes
  • dioxide exposures
  • chemical substances


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