Anthropogenic load model and water quality forming for the river

Contains a description of the theoretical principles that lead to the construction of the model. The model is based on the theory of matter fluxes joining by combining jets of a watercourse. As an example, the real model of human impacts on river Kacha is presented, left tributary of Yenisey river. The model is used to estimate the load of flows substances discharged from wastewater on the river and performance comparison with results of field measurements is given. The model sensitivity to changes in load is estimated.