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Nitous Oxide Presentation - Abundance and Sources Nitrous...

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Abundance and Sources Nitrous oxide is produced from both natural and human-related sources Natural sources of nitrous oxide are primarily a result of bacterial breakdown of nitrogen in soils and in oceans Human sources of nitrous oxide include agricultural soil management, animal manure management, sewage treatment, combustion of fossil fuels and from nitric acid production The greatest human source is from agricultural soil management Agricultural soil management increases the natural N2O gas emissions from soil. Practices include use of fertilizers, production of nitrogen fixing crops, cultivation of high organic content soils, and use of animal manure on croplands. All of these practices add nitrogen to soils which can then be converted to N2O gas Production The most common way to produce nitrous oxide is by heating ammonium nitrate This process decomposes ammonium nitrate into nitrous oxide and water vapor This reaction occurs between 170 to 240°C.
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