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Related Experiment Videos

Spirometric abnormalities among welders.

S K Rastogi1, B N Gupta, T Husain

  • 1Epidemiology Division, Industrial Toxicology Research Centre, Mahatma Gandhi Marg, Lucknow, India.

Environmental Research
|October 1, 1991
PubMed
Summary
This summary is machine-generated.

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Manual welders exposed to welding fumes experience significantly higher rates of respiratory impairment. Smoking exacerbates these effects, indicating a combined risk from occupational exposure and smoking.

Area of Science:

  • Occupational Health
  • Pulmonary Medicine
  • Environmental Health

Background:

  • Manual welders in brassware industries face occupational exposure to welding fumes containing lead, zinc, chromium, and manganese.
  • Previous studies suggest potential respiratory risks associated with welding, but specific data on brassware welders is limited.

Purpose of the Study:

  • To evaluate the prevalence of spirometric abnormalities in manual welders engaged in brassware manufacturing.
  • To compare respiratory health outcomes between exposed welders and a non-welding control group.
  • To investigate the influence of smoking and duration of exposure on pulmonary function in welders.

Main Methods:

  • Spirometry was performed on 57 manual welders (age 13-60) and 131 controls (non-welders).

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  • Data on age, exposure duration, and smoking habits were collected for both groups.
  • Prevalence of spirometric abnormalities was compared between welders and controls, and within the welder group based on smoking status and years of exposure.

    • Main Results:

    • Welders exhibited a significantly higher prevalence of respiratory impairment (28.0%) compared to controls (6.1%).
    • Smoking welders showed a higher impairment rate (40.0%) than non-smoking welders (18.7%), a trend also seen in controls.
    • Respiratory impairment correlated significantly with longer exposure durations, with welders exposed over 10 years showing higher abnormality rates (44.4%) than those exposed less than 10 years (13.3%).

    Conclusions:

    • Occupational exposure to welding fumes in brassware industries leads to increased pulmonary impairment.
    • Smoking acts as a significant contributing factor, potentially interacting with welding exposure to worsen respiratory health.
    • Pulmonary function tests revealed predominantly restrictive and mixed ventilatory defects among affected welders.