Nitrogen oxides are produced because of bacterial processes, biological growth and decay, forest fires (Lippmann 2009, p.823), volcano, and lightening among others (Hill 2010, p. Thunderstorms lead to the production of nitric oxide as a result of high heat of lightening released in the process of breaking down nitrogen molecules. On the other hand, burning of fossil fuels is considered the primary source of nitrogen oxides as part of human activities.Transportation fuels when burned produce nitrous oxide and mostly, motor vehicles and trucks are considered the primary source of nitrous oxide emission from transportation (Hill 2010, p. As nitrous oxide is emitted as a by-product during the production of nitric acid, nitrogen oxides are emitted into the air from motor vehicles exhaust or from the burning of coal, diesel fuel and natural gas from electric power plants. More so, nitrogen oxides are produced during the industrial processes such as welding and electroplating among others, and through cigarette smoking.In addition, agriculture also plays a leading role in nitrogen oxide emissions with the use fertilizers as these fertilizers contribute to nitrous oxide to the atmosphere. That is, the use of nitrogen fixation of plants also leads to the production of atmospheric nitrogen oxides because these synthetic fertilizers put in the soil to increase productivity produce nitrous oxide. Agricultural soil management is the major source of nitrous oxide especially in countries where non-organic farming is common. Additionally, nitrous oxide is produced during the breakdown of nitrogen in livestock manure and urine, and this implies that even the shift manure from synthetic fertilizers as a way to prevent nitrogen emission is not effective. Moreover, nitrous oxide emission comes of the oceans. The microbal activity in the soil also creates nitrogen oxide emissions (Shyam, Verma and Bhargava 2006, p. Notably, nitrogen oxides form part of the fire smoke and this implies that nitrogen oxides are produced when forests burn (Paul et al., 2008, p.The sink areas of nitrogen dioxide is include soils, and in aquatic systems. In the soils, they penetrate when nitrogen fertilizers are used to increase farm productivity and in the water bodies, it penetrates through water pollution, discharged wastes from industries and if it falls as acid rain.When combined with volatile organic compounds, nitrogen oxides form ground level ozone (Farmer 2013, p.22) which can
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