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Environmental Comparison of CO2 Emissions in LPG and Gasoline Passenger Vehicles

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This report examines the environmental capabilities of LPG vehicles in comparison to gasoline-powered passenger cars, focusing on CO2 emission levels. Measured data reveals that LPG vehicles emit 257.4 g/km of CO2, significantly lower than the 290.6 g/km from gasoline vehicles. Additionally, the study analyzes particulate matter (PM) and nitrogen oxides (NOx) emissions in trucks, showing LPG vehicles achieve superior environmental performance with PM emissions at 0.002 g/kWh and NOx at 0.01 g/kWh, compared to their diesel counterparts. Data sources include the Japan Automobile Transportation Technology Association and the Japan Automobiles Research Institute.

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Environmental Comparison of CO2 Emissions in LPG and Gasoline Passenger Vehicles

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  1. 3. Environmental Capability in LP Gas vehicles Comparison of CO2 in passenger cars CO２ 290.6g/km Gasoline LPG Vehicles 257.4g/km Source: Passenger cars: measured data by Japan Automobile Transportation Technology Association Comparison of PM/NOx in trucks PM 0.020g/kWh Clean Diesel Oil LPG Vehicles0.002g/kWh Clean Diesel Oil 1.69g/kWh NOＸ 0.01g/kWh LPG Vehicles CNG Vehicles 0.01g/kWh Source: Clean Diesel Cars & CNG vehicles: 2003 Guidebook for Low Emission Gas Vehicles by Ministry of Environment, METI, Ministry of National Land and Transportation LPG Vehicles: Data from the Japan Automobiles Research Institute Diesel Vehicles: Measured data from the Japan Vehicles Inspection Association Japan LP- Gas Association

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