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 #571877

LUNG,ASPHYXIATED,OPEN VALVE,WORK RULES,INHALATION,SULFUR DIOXIDE,GAS LEAK,TOXIC FUMES

Event
LUNG,ASPHYXIATED,OPEN VALVE,WORK RULES,INHALATION,SULFUR DIOXIDE,GAS LEAK,TOXIC FUMES
Linked inspection
No inspection record linked to this accident's victims.
Summary number
571877
Report ID
521110

Event description

Three employees inhale sulfur dioxide fumes

Investigation abstract

Because a valve was not closed, sulfur dioxide leaked back into the work area. E mployees #1 through #3 inhaled the gas and required hospitalization.

Victims (3)

  1. #1 Hospitalized Age 47 M

    Nature of injury
    2
    Part of body
    28
    Event type
    8
    Source
    19
    Occupation code
    999
    Human factor
    4
    Environmental factor
    7
    Hazardous substance
    2290
    Task assigned
    1
  2. #2 Hospitalized Age 32 M

    Nature of injury
    2
    Part of body
    28
    Event type
    8
    Source
    19
    Occupation code
    999
    Human factor
    4
    Environmental factor
    7
    Hazardous substance
    2290
    Task assigned
    1
  3. #3 Hospitalized Age 31 M

    Nature of injury
    2
    Part of body
    28
    Event type
    8
    Source
    19
    Occupation code
    999
    Human factor
    4
    Environmental factor
    7
    Hazardous substance
    2290
    Task assigned
    1

Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.