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There is lack of a clear vision of the environmental impacts resulting from using the alternative Liquified Natural Gas (LPG) as a fuel for vehicles instead of the current diesel and gasoline in the c...ity of Baghdad. Conversion to LPG is the installation of a second fuel system, including an LPG tank, a new electronic control unit and different fittings. Such modifications allow the vehicles to run on both fuels. LPG is preferred as it regarded a clean fuel that do not pollute the environment. This confirmed fact was an incentive for energy experts to explore new avenues, which make it an alternative to other hydrocarbons. The five air pollutants (SO2, NO2, NOx PM10 and CO) relationship and the LPG vehicles ratio will be analyzed by panel data analysis. RStudio programming language is used to do this analysis using a package called PLM. Results show that PM10 and CO is slightly significantly decreased with an increase in the LPG vehicles ratio. SO2 and NO2 reveal no statistically significant relationship with LPG vehicles’ ratio. Nevertheless, inconsistent outcomes of the remaining pollutants indicate that the efficacy of implementing the LPG vehicles program seems to be different by city.続きを見る
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