A Comparison of Major Pollutants Emission from Petrol and Diesel Car Exhaust

• Main Author: Ahmad Joneidi Jafari
• Format: Article
• Language: fas
• Published: Hamadan University of Medical Sciences 2003-03-01
• Series: پزشکی بالینی ابن سینا
• Subjects: air pollution / carbon monoxide / hydrocarbons / motor vehicles / nitrogen oxides
• Online Access: http://sjh.umsha.ac.ir/article-1-782-en.html
• ISSN: 2588-722X; 2588-7238

Motor vehicle emissions are a major anthropogenic source of air    pollution. In this study, a comparison of amounts of major emission pollutants    that they regulated in UK was done for three types of automobile includes    standard petrol, petrol with TWC and diesel. Also a comparison of amount    of carbon dioxide emission that it is important in green house effect was    shown in those three types of automobile.           For this purpose 300 automobiles were chosen after primary investigation    and pollutants emissions were tested in different condition of engine and    environmental temperature.          The result of this study showed pollutant emission includes THC, NOx and    CO from petrol car was higher than that from diesel engine when engine was    hot (P<0.001 , P< 0.0228 and p<0.0336 respectively) but amount of those    emission pollutant in car with TWC was close to amounts from diesel engine .    The amount of particles from diesel engine was attentionable in comparison    with  one’s from petrol and petrol with TWC car. Also the results showed that    CO and THC emission from two types of TWC petrol and diesel car were    higher when environmental temperature was low. Although amount of CO2    in middle speed was lower from diesel engine. In  many cases most light    hydrocarbons from petrol vehicles with TWC were higher than diesel engine    that a clear difference was noticeable for amount of toluene emission    (P<0.004).           It is not possible to make a direct comparison of environmental    friendlines of TWC petrol and diesel vehicle. From the present study’s results,    it is recommendable that petrol car manufactures have to install TWC    system on all petrol vehicle and government should provide new standard    and strong legislations for all new and old petrol and diesel vehicles. ‏