In studies of air pollution dispersion, the study meteorological parameters in planetary boundary layer is essential. Hence, the PBL parameters over Tehran-Mehrabad Airport are simulated using the ARW v. 3.6.1 mesoscale model. Four air-weather days in winter and summer (January and April 2015) with no significant synoptic activity were chosen for the study.High-resolution simulations are conducted with triple nested domains having a horizontal resolution of 18, 6 and 2 km, by using the 0.5 × 0.5° NCEP Final Analysis meteorological fields for initial and boundary conditions.. Sensitivity experiments of the WRF-ARW model were conducted with two non-local (YSU and ACM2) and three local (MYNN2, MYJ and QNSE), to study the evolution of PBL parameters and the thermodynamical structure during the study period. According to the results of the validation, the local scheme YSU and non-local MYNN2 has more accuracy than Observatory observations for meteorological parameters and have the least amount of errors than other schemes. The present results suggest that PBL schemes, namely YSU and MYNN2, are useful for air pollution dispersion studies.