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A hazardous material episode: sulfur trioxide

H A Stueven1, P Coogan, V Valley

  • 1Oak Ridge Affiliated Universities, Tennessee.

Veterinary and Human Toxicology
|February 1, 1993
PubMed
Summary

Sulfur trioxide exposure from a chemical plant caused irritant effects in 12 workers. Symptoms included chest pain, eye irritation, and dizziness, with most recovering quickly.

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Area of Science:

  • Environmental Health
  • Occupational Medicine
  • Toxicology

Background:

  • Chemical plant emissions can pose occupational health risks.
  • Sulfur trioxide is a known respiratory irritant.

Purpose of the Study:

  • To document the symptoms and health effects of sulfur trioxide exposure in workers.
  • To assess the pulmonary function and recovery following exposure.

Main Methods:

  • Case report of 12 workers exposed to a chemical plant emission.
  • Clinical assessment of symptoms and complaints.
  • Pulmonary function testing, including FEV1 (forced expiratory volume in 1 second).
  • Follow-up evaluation of persistent symptoms and skin lesions.

Main Results:

  • Nine workers reported various symptoms: pleuritic chest pain, chest tightness, eye irritation, dizziness, cough, and acidic taste.
  • Pulmonary function tests showed some initial decreases in FEV1 in 4 workers, with 3 improving.
  • Follow-up revealed persistent burning sensations and superficial skin lesions in some individuals.

Conclusions:

  • Sulfur trioxide exposure resulted in self-limited irritant effects.
  • Prompt medical evaluation and monitoring are important for workers exposed to chemical emissions.

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