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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 606335 - Employees Overcome By Hydrogen Sulfide Gas

Accident: 606335 -- Report ID: 0418200 -- Event Date: 07/26/1991
InspectionOpen DateSICEstablishment Name
11010921207/26/19912261Mount Vernon Mills, Inc.
At approximately 12:30 a.m. on July 26, 1991, Employee #3 and a coworker were mixing dye and finishing solutions in a dye room. Operations were continuing normally and no unusual circumstances were reported from prior shifts. The coworker noted an unusual odor, identified by some as similar to rotten eggs. He shouted to Employee #3 to "get out" and ran out of the room. Employee #3 was overcome and fell unconscious in the dye room. Employee #8, who began to account for the employees, saw Employee #3 down in the dye room and yelled for help. Employees #2, #7, #8, and #9 entered the dye room and removed Employee #3. He was admitted to intensive care and Employees #1 and #4 through #11 were admitted overnight for observation. The probable cause is that a chemical reaction occurred on the floor or in the floor drains where leftover dye and solutions from the vats are dumped. The reaction released a toxic substance, most likely hydrogen sulfide gas, which overcame the employee. Employee #3 was released after approximately two weeks of hospitalization.
Keywords: unconsciousness, hydrogen sulfide, gas, chemical reaction, poisoning, toxic fumes, overexposure
Employee # Inspection Age Sex Degree Nature Occupation
1 110109212 Hospitalized injury Other Occupation not reported
2 110109212 Hospitalized injury Other Occupation not reported
3 110109212 Hospitalized injury Other Occupation not reported
4 110109212 Hospitalized injury Other Occupation not reported
5 110109212 Hospitalized injury Other Occupation not reported
6 110109212 Hospitalized injury Other Occupation not reported
7 110109212 Hospitalized injury Other Occupation not reported
8 110109212 Hospitalized injury Other Occupation not reported
9 110109212 Hospitalized injury Other Occupation not reported
10 110109212 Hospitalized injury Other Occupation not reported
11 110109212 Hospitalized injury Other Occupation not reported

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