Too much carbon monoxide in an unventilated space is deadly. Older autos without catalytic converters.While not normally occurring in nature, CO is a commercially important chemical, and is the result of oxygen-starved combustion from improperly ventilated fuel-burning motors and appliances like: This happens when there is a limited supply of oxygen available. Where does CO come from?Ĭarbon monoxide is the result of incomplete combustion. Many refer to carbon monoxide (CO) as one of the most dangerous gases. Like carbon dioxide, carbon monoxide is also a colorless, odorless, and tasteless gas - that is toxic and has the molecular formula CO. At 40,000 ppm (4%) or above CO2 can be life-threatening.Symptoms of mild CO2 poisoning include headaches and dizziness at concentrations less than 30,000 ppm (3%).Drowsiness can occur at 10,000 ppm (1%) – common in closed cars or auditoriums.OSHA limits workplace exposure levels to 5,000 ppm time-weighted average (over 8 hours).ASHRAE recommends a 1,000 ppm limit for office buildings and classrooms to ensure overall health and performance.410 ppm is the current average CO2 level on the planet.Leaking pressurized CO2 tanks in enclosed areas can be dangerous for occupants - both from high levels of CO2 and from lower levels of oxygen (See oxygen displacement / asphyxiation).CO2 poisoning is rare however scuba divers have to watch out for it (the bends). ![]() CO2 is non-flammable, with no explosive properties.In the atmosphere CO2 measures approximately 400 ppm (parts per million).CO2 is a natural byproduct of human and animal respiration, fermentation, chemical reactions, and the decomposition of plant and animal life.CO2 is a common gas in the atmosphere and is required for plant life.Others die in dry ice (frozen carbon dioxide) storage lockers used for temporary food storage.įor protection from CO2 in enclosed spaces, CO2Meter offers CO2 safety alarms. ![]() In fact, dozens of people die or are injured each year as the result of CO2 leaks in bars, restaurants or in unventilated keg coolers when a beer line is left open. While not as deadly as carbon monoxide, high levels of CO2 in an enclosed space – for example, in a submarine – can suffocate you long before the oxygen runs out. Solid carbon dioxide is also known as "dry ice." An interesting fact about CO2 is that it coverts directly from a solid to a gas at -78 ☌ or above. For example, industrial plants that produce hydrogen or ammonia from natural gases are some of the largest commercial producers of carbon dioxide. Plants and trees depend on CO2 for life (they take in CO2 and give out oxygen).Ĭarbon dioxide can also be produced through industrial processes. It is also naturally produced by animal and human respiration, which takes in oxygen and exhales CO2. It is naturally produced by the decomposition of organic matter. Where does CO2 come from?ĬO2 is a naturally occurring gas in earths atmosphere. ![]() The linear molecule of a carbon atom that is doubly bonded to two oxygen atoms, O=C=O. Percentage Gas About CO2 - Carbon DioxideĬarbon dioxide (CO2) is a colorless, odorless and tasteless gas. While fatalities from CO2 are rare, CO poisoning is one of the most common types of poisoning worldwide.CO is the result of incomplete combustion during burning. CO2 is a naturally occurring gas required for plant and animal life.Carbon monoxide - CO and carbon dioxide - CO2 are two similarly sounding gases with very different properties.
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