Stochastic two-dimensional model of the distribution of river pollution

In this paper, we consider the two-dimensional stochastic model of transport pollution along a river including random pulsations and non-random means of longitudinal and transverse velocities of a water flow, coefficients of longitudinal and transverse diffusion and the conservativeness of the substance. The equations for the first moments of fields were obtained and solved in an approximate analytical form for a particular case.