Nitrous oxides are poisonous and highly reactive gases. These gases are formed when fuel is burned at high temperatures. Nitrous oxide pollution is emitted from automobiles, trucks and various non-road vehicles (such as construction machinery and boats) and industrial sources such as power plants, industrial boilers, cement kilns and turbines.
-emisyon-tayini.jpg "Determination of Nitrous Oxide (NOx) Emission")
Nitrous oxides are strong oxidizing agents in general and play an important role in atmospheric reactions with volatile organic compounds (VOCs) that produce ozone on hot summer days.
In atmospheric chemistry, nitrogen oxides are closely related to air pollution, and the expression nitrous oxide is mainly used for nitrogen monoxide and nitrogen dioxide. Nitrous oxides also contribute to the formation of smog and acid rain and affect tropospheric ozone, which causes climate change.
Nitrous oxides are mainly produced from the reaction between nitrogen and oxygen during the combustion of fuels such as hydrocarbons in air. For example, these gases are formed at high temperatures, such as in car engines. Nitrogen oxides emitted are an important source of air pollution in large cities with heavy motor vehicle traffic.
Chemically, nitrous oxides are molecules containing one nitrogen and one or more oxygen atoms. The main types of nitrous oxide (NOx) are:
Nitrous oxides have a wide range of uses in industry. For example, in the chemical industry, in various food packaging, in various stages of wine production, in many processes from production to packaging in the pharmaceutical industry, and in electronic assembly and soldering processes.
Nitrous oxides, as counted above, are emitted into the atmosphere during agriculture, land use, industrial activities, combustion of fossil fuels and solid wastes, as well as during wastewater treatment.
Nitrous oxides account for about 7 percent of all greenhouse gas emissions from human activities, and human activities are increasing the amount of nitrogen oxides in the atmosphere.
Nitrous oxide, a type of nitrogen oxide, occurs naturally in the atmosphere as part of the Earth's nitrogen cycle . Nitrous oxide molecules remain in the atmosphere for an average of 114 years before being destroyed by chemical reactions. Its effect on warming the atmosphere is almost 300 times that of carbon dioxide.
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