Related Experiment Videos
Cobalt-induced bronchial asthma in diamond polishers
Chest
|November 1, 1985
Summary
Inhalation of cobalt powder from diamond polishing disks caused occupational asthma in three workers. Symptoms included bronchoconstriction, rhinitis, and chest tightness, highlighting the need for ventilation.
Area of Science:
- Occupational Medicine
- Toxicology
- Pulmonary Medicine
Background:
- Diamond polishing involves microdiamonds cemented with cobalt.
- Workers may be exposed to airborne cobalt powder during high-speed polishing.
Observation:
- Three diamond workers developed occupational asthma.
- Symptoms included progressive bronchoconstriction, rhinitis, and chest tightness.
- Symptoms worsened without adequate exhaust ventilation.
Findings:
- Cobalt powder inhalation was identified as the cause.
- Cobalt inhalation challenge tests were positive in all affected workers.
- Exposure to cobalt temporarily increased non-specific bronchial hyperreactivity.
Implications:
- Occupational asthma is a risk for workers exposed to cobalt powder.
- Adequate ventilation is crucial to mitigate exposure risks.
- Further research into cobalt's respiratory effects is warranted.