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Tumwater, WA — Dry ice and liquid nitrogen pose potentially deadly health risks to workers in food, beverage and other businesses that use, transport or store these cooling agents, the Washington State Department of Labor & Industries warns in a new hazard alert.
When dry ice and liquid nitrogen are exposed to air, they become a gas – carbon dioxide and nitrogen dioxide, respectively – and displace oxygen, which then can lead to suffocation, the alert states.
Other hazards presented by dry ice – solid carbon dioxide – and liquid nitrogen include ice burns and permanent frostbite damage to unprotected skin and eyes, as well as explosions when pressure builds up in non-venting, airtight containers holding either product.
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