Eye Contact: May cause mild irritation.Blistering, tissue death and infection may develop in severe cases. The skin may become waxy white or yellow. Symptoms of more severe frostbite include a burning sensation and stiffness. Symptoms of mild frostbite include numbness, prickling and itching. Direct contact with the liquefied gas can chill or freeze the skin (frostbite). Lack of oxygen can cause permanent damage to organs including the brain and heart. Symptoms occur more quickly with physical effort. As less oxygen becomes available, nausea and vomiting, collapse, convulsions, coma and death can occur. If less oxygen is available to breathe, symptoms such as headache, rapid breathing, rapid heart rate, clumsiness, emotional upsets and fatigue can result. A high concentration can displace oxygen in the air. Higher concentrations can affect respiratory function and cause excitation followed by depression of the central nervous system. Inhalation: Low concentrations are not harmful.What are the potential health effects of carbon dioxide? Back to top High concentrations can displace oxygen in air and cause suffocation. Can accumulate in hazardous amounts in low-lying areas especially inside confined spaces. What are the most important things to know about carbon dioxide in an emergency? Back to topĮmergency Overview: Colourless gas. Note: Carbon dioxide has been classified by the American Conference of Governmental Industrial Hygienists (ACGIH) as an asphyxiant. Contains refrigerated gas may cause cryogenic burns or injury.Contains gas under pressure may explode if heated.Hazard statements for Gases under pressure include: Note: For compressed gases: According to the Hazardous Products Regulations, gas under pressure means a product that consists of a gas contained in a receptacle at a gauge pressure of 200 kPa or more at 20☌, or that is liquefied, or liquefied and refrigerated, but excludes any gas that has an absolute vapour pressure of not more than 300 kPa at 50☌ or that is not completely gaseous at 20☌ and the standard pressure of 101.3 kPa. The Commission des normes, de l'équité, de la santé et de la sécurité du travail (CNESST) has not classified carbon dioxide (gas) (as reviewed on February 22, 2023). What is the WHMIS classification? Back to top Main Uses: Manufacture of other chemicals, food processing, numerous other uses Other Names: CO 2, Liquefied carbon dioxide, Refrigerated carbon dioxide Conditions that lead to rebreathing, such as airtight tents or even bunched up blankets next to a baby's head, should also be avoided.What are other names or identifying information for carbon dioxide? Back to top Areas known to contain high levels of carbon dioxide, such as underground tunnels and shafts, should be avoided. Prevention is the best way to avoid carbon dioxide poisoning. If the exposure was at levels higher than 75 mm Hg, the patient may suffer from permanent damage of the central nervous system. If the exposure was at mild to moderate levels (45 mm Hg to 65-70 mm Hg), the patient should recover fully. The best way to treat hypercapnia is to remove a person from exposure to carbon dioxide and give him oxygen. In some cases, victims who have been exposed to very high levels of carbon dioxide in the atmosphere have been known to almost immediately die of asphyxiation, as the carbon dioxide serves to displace, or push out, the oxygen in the air. Death will occur because of a lack of oxygen in the blood, leading to complete organ failure as the oxygen has been overtaken by the carbon dioxide. If severe hypercapnia is reached (levels of carbon dioxide in the blood at 75 mm Hg or higher), a person will exhibit disorientation, convulsions, panic and unconsciousness, leading to death.
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