Modelling of summer photochemical smog in the prague region

Numerical model for simulation and evaluation of summer episodes of anthropogenic surface ozone (summer smog episodes) is presented in this article. This model has been used for special air-pollution studies in the region of Prague (central part of Bohemia - the Czech Republic). It is based on so called “puff model” technology and lagrangian method of trajectories construction in the boundary layer of atmosphere is applied. Processes of turbulent dispersion of puffs, photochemical and other chemical transformations and deposition of compounds on the earth surface are also taken into account. System of equations used for chemistry description of the model is presented here in details and a brief informative presentation of model results is also included.