Vol. 25, issue 07, article # 14

Abstract:

Based of the presence of fluorescent organic compounds in dust aerosols and anthropogenic aerosols, we have obtained information about the shape of the fluorescence spectra of samples. For samples of dust aerosols and dust fraction soil fluorescence factor is 0.23–0.76. Line width at fluorescence half maximum is 70–100 nm. The presence of fluorescent DOM in dust aerosol and dust fraction soil samples during their dissolution in water and their spectrum shape is similar to the fluorescence spectrum of DOM in natural waters. Maximum fluorescence of natural waters located in the region 430–450 nm and the laser fluorometer, applied in this study, the maximum bandwidth for the DOM in natural water with the spectral sensitivity of the detection system was 450–470 nm. The time dependence of fluorescence in studying the dynamics of the dissolution of aerosol is investigated.

Keywords:

aerosol, dust haze, soluble organic substances, water pollution, laser fluorescence, polychromator, nitrogen laser, an optical multichannel analyzer, dust storm, fluorescence