[en] The atomic capture and transfer of π^- -mesons in the gaseous mixtures H₂+Z have been studied where Z is He,Ne,Ar,Kr,Xe and N₂, CO₂. The relative probabilities of the atomic capture of pions by the mixture components have been measured as well as the constants Λsub(Z) of the pion transfer from the hydrogen atoms by Z atoms. It is shown that the relative stopping power Ssub(0)sup(H) of Z atoms, at the pion energies when the atomic capture takes place, and the transfer constants Λsub(Z) equally weakly depend on the admixture concentration C = nsub(Z)/nsub(H)