Hydrogen sulfide poisoning kills two.
NIOSH 1996 Mar; :1-5
A 30 year-old male (worker 1) and a 52 year-old male (worker 2) died as a result of exposure to hydrogen sulfide vapors. They were both working at an oil field water injection plant and in the process of replacing a water transfer pump when the incident occurred. It appears worker 1 removed a clamp on the wrong side of an isolation valve and water containing hydrogen sulfide (H2S) was released. Both were overcome by the H2S vapors. They were discovered by a coworker who called for help. They were pronounced dead at the scene. The Nebraska Department of Labor (NDOL) Field Investigator concluded that to prevent future similar occurrences employers should: 1. Develop, utilize and enforce a comprehensive lockout/tagout program to protect individuals from potentially hazardous conditions. 2. Develop and utilize written standard procedures for removal and installation of major system components. 3. Consider redesigning the ventilation systems in water injection plants to more effectively exhaust hydrogen sulfide vapors. 4. Develop, implement and enforce a comprehensive safety program that includes, but is not limited to, training in all hazard recognition.
Region-7; Accident-analysis; Accident-prevention; Accidents; Injuries; Injury-prevention; Traumatic-injuries; Work-operations; Work-analysis; Work-areas; Work-performance; Work-practices; Safety-education; Safety-equipment; Safety-measures; Safety-monitoring; Protective-measures; Safety-programs; Equipment-design; Gases; Vapors; Training; Oil-industry
Field Studies; Fatality Assessment and Control Evaluation
NTIS Accession No.
National Institute for Occupational Safety and Health
Nebraska Department of Labor