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Release any vehicle operating rates of any pollutants at a particular km in an hour. In fact, several vehicles have different emission factors based on fuel type and technology of their own. In addition, this release with factors to consider and the slope of the road driving skills. Air pollutants emission from vehicles using the EMME/2 output information software company by a comprehensive company transport studies in Tehran, in the peak hours in the morning in 2013-14. Emission factors of different vehicles, by a comprehensive company transport studies in Tehran, the day annually. And according to the following vehicles change group and calculate the rate of fuel consumption, the numbers were corrected (20, 21).Non-road mobile sources, such as لوکوموتیوها, ships, aircraft, agricultural and construction equipment, even moving vehicles in bus terminals and trucks, generally on the inventory of emissions independent of its space to allow the circulation of vehicles on the public roads.According to the variation of the activity data, the technical characteristics of vehicles, fuel type and operating conditions of the category of non-road sources integration space cell phone, various methods for estimation of emissions to the atmosphere have been created. This method is the use of mechanical model to emission factors.Due to the diversity of the sources of the region, there are various methods, to estimate emissions; mechanical models, emission factors and balance the materials more commonly used (19).In this study, the data required for release of pollutants and resources residing in fuel consumption and emissions, distribution of petroleum products to Iran and the National Iranian gas company. This is the data that is available to the public, owned by 2013-14. Information regarding the number of consumers in different areas of the organization such as statistics and information center (20) were collected.To calculate emissions for the sources resides, data by the company obtained control of air quality and emission factors used are based on a comprehensive research plan for the control of pollution (22) were collected. Resources for emission factors are shown in table 1.
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