The project addresses the reduction of the level of air pollution in the Ol. region by limiting the primary emissions of pollutants from the local heating of households-family houses (limiting the emissions of those pollutants (or their precursors) for which it has been found that the emission limits are exceeded and stabilizing the emissions of those pollutants for which the emission limits are not exceeded). The limitation of emissions will be achieved by replacing heating sources (boilers) for solid fuels in the RD with emission-friendly heating sources.