Application of functions of influence in air pollution problems

The present paper aims at giving a general idea of the functions of influence and their application to air pollution and environmental problems, introducing a rather general formulation of the problem; application of the functions of influence in pollution abatement strategies and model sensitivity studies. The functions of influence had been originally defined for the case of linear chemistry as solutions of an equation conjugated to the pollution transport one. The problem of functions of influence in case of small disturbances of model parameters is introduced in the present paper, which makes it possible to apply the approach of functions of influence for the case of nonlinear chemistry. Some applications of the functions of influence in pollution abatement strategies, model sensitivity studies and model parameters optimization are discussed.