| carbon monoxide |
Colorless, odorless, nonirritating but highly toxic gas produced by incomplete combustion of fuel, incineration of biomass or solid waste, or partially anaerobic decomposition of organic material.
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| carbon cycle |
The circulation and reutilization of carbon atoms, especially via the processes of photosynthesis and respiration.
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| carbon monoxide |
A colorless, odorless, very toxic gas; formula CO, molecular weight 28. It is an intermediate product in the oxidation or combustion of organic material. It is present in the atmosphere at varying levels but is found everywhere, a result of its widely distributed sources and fairly long lifetime. Carbon monoxide is oxidized to carbon dioxide by the hydroxyl radical (OH) and plays a part in local and regional air quality.
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| carbon tetrachloride |
A significant contributor to the atmospheric chlorine budget, this compound, formula CCl 4 , has been used in industrial applications as a solvent. Its production is now banned as a result of the Montreal Protocol on Substances that Deplete the Ozone Layer.
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| carbon disulfide |
Reduced sulfur gas CS 2 formed predominantly in industrial processes, but also emitted from natural sources. Following its oxidation by the hydroxyl radical it is transformed largely to carbonyl sulfide (COS).
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