Investigating the relationship between daily and monthly concentrations of urban air pollutants with the mixing depth in Poonak station by Using AERMOD model

Miralizadeh Fard, Seyed Reza; Khoramnejadian, Shahrzad; Rashidi, Yousef

Investigating the relationship between daily and monthly concentrations of urban air pollutants with the mixing depth in Poonak station by Using AERMOD model

Document Type : Original Article

Authors

Seyed reza miralizadeh fard ¹

Shahrzad Khoramnejadian ²

yousef Rashidi ³

¹ Department of environment damavand branch islamic azad university damavand iran

² Islamic Azad University of Damavand

³ Shahid Beheshti University

Abstract

In order to model the emission of pollutants, it's necessary to know the amount of mixing depth, which in most modeling, only for the climate of the region, values for the mixing depth is assumed. The aim of this study show the relationship between the depth of mixing in the atmosphere, and the pollutants measured by monitoring stations in Tehran Poonak. Methods Review Emission rate of pollutants CO, NO2 , PM10, SO2 , O3 and PM2.5 the urban air quality station of Poonak region and the comparison of the average daily and monthly concentrations of air pollutants is done based on the information received from the measuring station of the quality control company with the values of convective boundary layer height and mechanical boundary layer height of mixing. Results shows the height of urban mixing increases in proportion to changes in ambient temperature. On the other hand, synoptic conditions prevent the displacement and convection of the air mass of the boundary layer. As well as factors affecting the pollution of air, the characteristics of meteorological, topographic terrain and intensity Production of pollutants is not to increase or decrease the concentration of the scale of local and area of lead becomes.

Keywords

“depth of disturbance”

“climatic conditions”

“ mixing height”

“ urban air quality”