This paper considers some peculiarities of anthropogenic admixtures propagation from large regional Coal Power Plants towards the South Baikal using experimental data and model estimates. Results of observations show that the main mechanism for transfer of atmospheric admixtures towards the South Baikal is low-level atmospheric jets having high velocity and a weak turbulent mixing. A weak mixing of emitted plume with the surrounding air (within a jet flow) results in deficiency of oxidants in it and in slowing of chemical transformation of some admixtures during the transfer. [ABSTRACT FROM AUTHOR]