Simulation of NOx Concentration of Dhaka City by Regional Air Model

In this paper, an attempt has been taken to develop a software to predict the existing NOx concentration in Dhaka region and to validate the software compared with manual calculation for the data collected from DOE. The integrated model based on C++ was applied for six locations of Dhaka city (non industrial points) - Farmgate, Mirpur, Mohakhali, Malibag, Dhanmodi-2 and Gulshan-1 and the average concentration of NOx for these six locations were simulated as 106.593, 84.898; 96.481; 80.548; 124.503; and 68.975 μg/m3respectively. The average deviation between software analyzed results and DOE measured results was 3-7%. It is also found that other pollutant matter such as SOx, CO, SPM make this condition most critical ultimately.