کنفرانس ملی مهندسی و مدیریت محیط زیست

صفحه اصلی / هفتمین کنفرانس ملی مهندسی و مدیریت محیط زیست

Modeling the Emission of Volatile Organic Compounds from Gas Stations in Isfahan City Using AERMOD

نویسندگان :

Masoud Farhang¹ Farham Aminsharei² Fatemeh Mehrabi³

1- دانشگاه آزاد واحد نجف اباد 2- دانشگاه آزاد اسلامی واحد نجف آباد 3- دانشگاه آزاد اسلامی واحد علوم و تحقیقات

کلمات کلیدی :

Emission،Modeling،Volatile Organic،AERMOD،Gas Stations

چکیده :

Volatile organic compounds are one of the most important volatile pollutants emitted by gasoline. Due to the importance of the subject, in this study, the rate of emission of VOCs released from the 79 gas stations in Isfahan was prepared. Also, the distribution of they was modeled monthly, in four seasons and annually by AERMOD model. In this study, the emission coefficients provided by the European Environment Agency were used to calculate the emission rate. According to this study, between 12-month, in April the highest rate of emission of volatile organic compounds escaping from the gas stations in Isfahan are released into the atmosphere. The results of 12-month scattering showed that the highest concentration of VOCs in Isfahan was in March, and the lowest was in November. Summer has the highest rate of emission of volatile organic compounds from the gas stations to the atmosphere of Isfahan between seasons. The results of this study showed that in winter occurs the highest concentration of VOCs resulting from gasoline evaporation in gas stations in Isfahan.the results show that in gas stations in the refueling mode, the highest amount of volatile organic compounds is released into the atmosphere. According to the distribution map, in winter due to higher air stability, lack of monsoon winds, cold weather and the process of temperature inversion, the dispersion of pollutants in the atmosphere is less, so a higher concentration of VOCs obtained from gas stations in atmosphere. Also,the highest concentration of volatile organic compounds is in the city center which is due to the accumulation of gas stations in this area