105,313Records 71,083Employers 85,290Hospitalizations 27,770Amputations 2015-01-01 2025-10-31
Safety Incidents OSHA Severe Injury Reports · 2015–2025

OSHA Accident Investigation · Summary #711903

LUNG,CAUSTIC,VENTILATION,WORK RULES,INHALATION,CHEMICAL REACTION,RESPIRATORY TRACT,CHEMICAL VAPOR,SULFURIC ACID,RESPIRATOR

Event
LUNG,CAUSTIC,VENTILATION,WORK RULES,INHALATION,CHEMICAL REACTION,RESPIRATORY TRACT,CHEMICAL VAPOR,SULFURIC ACID,RESPIRATOR
Linked inspection
No inspection record linked to this accident's victims.
Summary number
711903
Report ID
1054191

Event description

Employees exposed to sulfuric acid after chemical reaction

Investigation abstract

Employee #1 was adding cement to a waste ceramic shell containing thorium oxide, spitalized. They were wearing respirators at the time of the accident. This inci dent may be related to a similar occurrence on March 9, 1990, although no worker s were sent to the hospital at that time. The fumes may have spread because a ba y door to the outside was partially open, defeating the negative pressure in the cleaning area. resulting in a caustic sulfuric acid mixture that began to heat up and fume. Wh en he added water, the mixture began to smoke and fume at a greater rate. The fu mes spread to other areas of the plant, and Employees #2 through #9, who were wo rking in the area of the plant nearest to the cleaning department, were evacuate d first, followed by the remainder of the facility. Exposure to sulfuric acid an d possibly oxides of sulfur was suspected, although the actual chemical products to which the workers were exposed are still under investigation. Employees #1 t hrough #9 suffered upper respiratory tract and lung irritation, but none were ho

Victims (9)

  1. #1 Non-hospitalized injury Age 22 M

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    758
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  2. #2 Non-hospitalized injury Age 30 F

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  3. #3 Non-hospitalized injury Age 25 F

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  4. #4 Non-hospitalized injury Age 36 M

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  5. #5 Non-hospitalized injury Age 25 F

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  6. #6 Non-hospitalized injury Age 35 F

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  7. #7 Non-hospitalized injury Age 35 M

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  8. #8 Non-hospitalized injury Age 29 M

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1
  9. #9 Non-hospitalized injury Age 29 M

    Nature of injury
    21
    Part of body
    28
    Event type
    8
    Source
    44
    Occupation code
    689
    Human factor
    11
    Environmental factor
    9
    Hazardous substance
    2310
    Task assigned
    1

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