Comparison of Exhaust Pollutant from Zamyad and Peykan Cars with Air Pollution Standards in Shiraz City

Subject Areas : soil pollution

Reyhane Dehghan ¹ (Ph.D., Student, Department of Environment, Research Institute of Environmental Sciences, Shahid Beheshti University, Tehran, Iran)
Mehranghiz Rahimi ² (M.Sc., Environment Department, Faculty of Natural Resources, Yazd University, Yazd, Iran)
Farhad nejad koorki ³ (Environment Department, Faculty of Natural Resources, Yazd University, Yazd, Iran)
Alireza Afshani ⁴ (Social Sciences Department, Faculty of Literature, Yazd University, Yazd, Iran)
Malihe Amini ⁵ (Environmental Science and Engineering Department, Faculty of Natural Resources, University of Jiroft, Jiroft, Iran)

Received: 2021-05-24 Accepted : 2021-05-24 Published : 2021-03-21

Keywords: Air Pollution Standard, Shiraz city, Carbon Monoxide. Unburned Hydr,

Abstract :

Background and Purpose: In this study, the amount of exhaust emissions (carbon monoxide and unburned hydrocarbons) from the exhaust of Peykan and Zamyad cars in Shiraz in the years between 2003-2011 was investigated and was compared with the standard environment. Materials & Methods: In this research, using systematic random sampling data from the 320 vehicles referring to Valiasr Technical Examination Center of Shiraz during 5 months was done. Measurement of exhaust outlet parameters was done by Gasoline Pollution Control Device and also Data analysis was done using SPSS software and independent t-test at 5% confidence level and then charts were drawn in Microsoft Excel software. Results: The results showed that in most cases, with updating cars model, the amount of HC and CO were decreased and the amount of these pollutants is at the standard level of the environment. So that the amount of carbon monoxide in Zamyad from 4.27 to 0.35 and in Peykan from 6.28 to 2.96 the volume percentages reached from 2003 to 2011 years. Also, the amount of unburned hydrocarbons decreased from 644 ppm to 78 ppm in the Zamyad and from 571 ppm to 298 ppm for Peykan in the period 2003 to 2011 And in both cars, emissions have been downward. Discussion & Conclusion: In general, the amount of exhaust pollutants from both cars will not have a disturbing effect on the health of residents in Shiraz. Therefore, it is hoped that with measures such as paying attention to environmental standards to eliminate air pollution, adjust and timely service of car engines and accessories to prevent the spread of air pollutants, prevent the traffic of high-pollution cars and timeworn cars can be taken an effective step to reduce air pollution in cities.