An overview is presented regarding the development, structure and problems
of applications of complex numerical atmospheric environmental models. Different
model types based on the mass balance equation for minor reactive atmospheric
constituents are briefly described. General aspects of process treatment in aerosol
chemistry transport models are addressed. They include chemical mechanisms, particle
dynamics and chemistry, emission of anthropogenic and natural compounds and wet
and dry deposition. The role of the atmospheric boundary layer is highlighted.
Keywords: Chemistry transport model, anthropogenic emission, volatile organic
compounds (VOC), deposition, aerosol, particle size spectra, atmospheric
chemical data assimilation, evaluation of models, climate change, human health.
