ABSTRACT
The high concentration of hazardous emissions in urban air is mainly caused by emissions from vehicles with gasoline and diesel engines. Concerning economic characteristics, manufacturers of both type of vehicles promise more economical consumption of fuel in comparison with using gasoline and diesel fuel. Using liquefied natural gas (LNG) is more efficient than using GTL technology. The use of electric cars is considered to be a means for reduction of pollutants in the air, but harmful chemicals released in the production of electricity are not taken into account. Also, electric cars have the following disadvantages: The use of electric vehicles will greatly increase the use of electricity, which will inevitably lead to additional construction of new power plants and Battery manufacturing is accompanied by releasing of toxic metal compounds. Since it has a very high cost of production and low calorific value obtained in the process of diesel fuel.
