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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 674028 - Employees Exposed To Carbon Monoxide From A Concrete Saw

Accident: 674028 -- Report ID: 0454510 -- Event Date: 08/20/1986
InspectionOpen DateSICEstablishment Name
319990808/20/19861795Carolina Concrete Cutting Corp.
InspectionOpen DateSICEstablishment Name
319989008/21/19861542Condapt, Inc.
EMPLOYEES #1, #2 AND #3 WERE BUILDING A FRAME PARTITION IN A 30 BY 45 FOOT AREA. A SUBCONTRACTOR WAS USING A GASOLINE-POWERED 18 HORSEPOWER "TARGET" CONCRETE SAW WITH A DIAMOND BLADE (SERIAL NO. EC 185 DM18E-8462B). AFTER 4 HOURS EMPLOYEE #1 AND #2 BECAME SICK AND EMPLOYEE #1 INSTRUCTED ALL THE OTHER EMPLOYEES TO LEAVE THE AREA. EMPLOYEE #1 PASSED OUT AFTER LEAVING THE AREA. ALL THREE EMPLOYEES WERE HOSPITALIZED, THEN RELEASED AFTER 9 HOURS. THE EIGHT HOUR TWA FOR CARBON MONOXIDE EXPOSURE WAS DETERMINED TO EXCEED 150 PPM BY EXTRAPOLATING FROM THE CARBOXYHEMOGLOBIN LEVEL IN THE BLOOD OF THE EMPLOYEES. THE CASUAL FACTOR OF THIS INCIDENT WAS THE USE OF AN INTERNAL COMBUSTION ENGINE IN A UNVENTILATED ENCLOSED SPACE.
Keywords: enclosed space, unconsciousness, inhalation, saw, exhaust fumes, carboxyhemoglobin, carbon monoxide, ventilation, construction, poisoning
Employee # Inspection Age Sex Degree Nature Occupation
1 3199908 Occupation Not Listed
2 3199890 Hospitalized injury Asphyxia Supervisors; carpenters and related workers
3 3199890 Hospitalized injury Asphyxia Carpenters
4 3199890 Hospitalized injury Asphyxia Carpenter apprentices

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