[Labor Accident Case] Carbon monoxide poisoning that occurred in a pump well at a water supply intake facility.
Introduction of a case of carbon monoxide poisoning that occurred in a pump well at a water supply intake facility.
Three workers were engaged in the replacement of the backflow prevention valve for the water supply pipe installed in the pump well. While using a submersible pump powered by a gasoline engine to draw water, exhaust gases accumulated in the pump well, causing the three workers to report feeling unwell and lose consciousness. Two victims who remained in the pump well were rescued by staff from the water purification plant. One individual managed to escape on their own and all three were transported to the hospital, where they were hospitalized for 11 days. 【Suggestions】 - Use gas detectors to confirm the effectiveness of ventilation. - Work while ensuring safety with a portable gas monitor. *For more details, please refer to the PDF document or feel free to contact us.*
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【Case Summary】 ■Location of Occurrence - Pump well at the water intake facility (At the water intake facility, water is pumped from the intake to the water purification plant through a sedimentation basin and a connected pump well.) ■Countermeasures - Do not use internal combustion engines in poorly ventilated areas. - If it is unavoidable to use internal combustion engines, use ventilation equipment that can ensure the necessary ventilation volume. *For more details, please refer to the PDF document or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Riken Keiki Co., Ltd. was established as a company within the "Riken Foundation" conglomerate and has since focused on the scientific and technological advancements of the Riken Institute. As a specialized manufacturer of industrial gas detection and alarm equipment, we have worked to ensure industrial disaster prevention safety by preventing explosions caused by flammable gases and monitoring harmful gases in the workplace. Moving forward, we aim for zero loss of precious human lives and valuable assets, further strengthening our technological development capabilities. We will supply high-quality industrial gas detection and alarm equipment, as well as various excellent gas sensors, to countries around the world, contributing to the assurance of industrial disaster prevention safety.