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Characteristics of Asian sand dust (ASD). (A) Representative figure of scanning electron microscopy (SEM) for ASD, (B) representative figure of transmission electron microscopy (TEM) for ASD, (C) representative figure of ASD composition analyzed using X-ray spectroscopy on SEM images, (D) quantitative analysis of ASD composition, (E) average particle size of ASD in distilled water, and (F) surface charge of ASD as measured using zeta potential.
