Dynamics change of chemical compounds in the composition of the dust aerosol on period of dust storms in Tajikistan

This contribution presents the composition of dust aerosol collected in dust stormsin the territory of the weather stationAyvaj southern Tajikistan, during the years 2007-2015. High concentrations of the compounds SiO 2 (54.23%), CaO (11.25%) and Al 2 O 3 (10.16%) were found, which is characteristic for dust. The statistical characteristics of measured compounds is determined and the correlation coefficients between certain compounds are calculated. A significant high correlation is observed between SiO 2 and Na 2 O (r=0.98), between Fe 2 O 3 and SO 3 (r=0.89), between Fe 2 O 3 and Al 2 O 3 as well as between K 2 O and MgO (r=0.89).