Environment, health and safety

Which occupational hazard requires particular attention where large amounts of nitrogen gas are used?

  1. AOxygen deficiency
  2. BElectric shock
  3. CNoise-induced hearing loss
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Answer: A. Oxygen deficiency

Nitrogen is colorless, odorless and nontoxic, but if it leaks and lowers the oxygen concentration of the air, people can suffer oxygen deficiency without noticing and lose consciousness. Before entering enclosed spaces or equipment where nitrogen is used, measure oxygen concentration and ventilate thoroughly.

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