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Occupational asthma caused by aluminium welding

O Vandenplas1, J P Delwiche, M L Vanbilsen

  • 1Dept of Chest Medicine, Mont-Godinne Hospital, Catholic University of Louvain, Yvoir, Belgium.

The European Respiratory Journal
|July 2, 1998
PubMed
Summary

Occupational asthma can be triggered by aluminum welding fumes. This study shows aluminum, not just its byproducts, can cause asthmatic reactions in welders.

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Area of Science:

  • Occupational Medicine
  • Environmental Health
  • Pulmonary Medicine

Background:

  • Work-related asthma is a known issue in the aluminum industry.
  • The specific role of aluminum in causing occupational asthma remains unclear.

Observation:

  • A subject experienced asthma symptoms linked to manual metal arc welding on aluminum.
  • Challenge exposure tests were conducted using aluminum welding electrodes (with and without flux) and mild steel electrodes.

Findings:

  • Manual metal arc welding on aluminum, with or without flux, triggered significant asthmatic reactions in the subject.
  • Welding on mild steel did not elicit a notable bronchial response.
  • Evidence suggests aluminum itself can cause asthma, independent of fluoride exposure.

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Implications:

  • These findings highlight aluminum as a potential direct cause of occupational asthma.
  • Increased awareness is crucial for diagnosing asthma in workers exposed to aluminum.
  • Further research into aluminum's direct role in respiratory sensitization is warranted.