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Chrome alloy welding fume study

K W Vorpahl, P T Jordan, E J Mathews

    American Industrial Hygiene Association Journal
    |October 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Welders exposed to excessive chromium levels during high chromium alloy steel welding. Air-supplied helmets effectively reduced chromium exposure below safety standards.

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    Area of Science:

    • Occupational Health
    • Industrial Hygiene
    • Metallurgical Engineering

    Background:

    • Arc welding of high chromium alloy steel can generate hazardous airborne contaminants.
    • Welders in production settings may face significant exposure to chromium.
    • Existing ventilation methods may not adequately control exposure.

    Purpose of the Study:

    • To assess chromium exposure levels in arc welding operations.
    • To evaluate methods for reducing welder exposure to chromium.
    • To implement and verify effective exposure control strategies.

    Main Methods:

    • Collected breathing zone air samples inside welding helmets for approximately 90 welders.
    • Considered local exhaust ventilation and air-supplied helmets for exposure reduction.

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  • Developed and implemented air-supplied helmet systems.

    • Main Results:

    • Excessive chromium exposure levels were detected in welders.
    • Air-supplied helmets significantly reduced breathing zone chromium levels.
    • Contaminant levels were reduced well below established occupational exposure standards.

    Conclusions:

    • Air-supplied helmets are an effective control measure for chromium exposure in high chromium alloy steel welding.
    • Implementation of appropriate personal protective equipment is crucial for welder safety.
    • Engineering controls should be prioritized to maintain a safe working environment.