Analysis of cation composition of atmospheric aerosol of semi-arid zone of Tajikistan

The article presents the results of measuring the cationic composition of atmospheric aerosol (Na⁺, NH⁴⁺, K⁺, Mg²⁺ and Ca²⁺) in the semi-arid zone of Tajikistan, as well as their comparison with other regions of the world. It was found that among the five tested cations, the highest concentration in the semi-arid zone of Tajikistan is for calcium ions. The reason for the high concentration of calcium is the thermal power plant, the plant 'Tajik cement' and transport. (author)