Some experimental data are presented on the statistical properties of aerosol content in the near-ground atmospheric layer. The data have been acquired with an in situ nephelometer at an acoustical meteorological station. Necessary information on the measurement site is also given in the paper. The estimates obtained based on these measurements show good quality of nephelometric measurements in application to studies of the aerosol fluctuations. The data obtained have been classified in accordance with the Monin–Obukhov similarity theory. Thus constructed classification confirmed that the universal function for the mean aerosol concentration, if it exists, should be analogous to the ones for the air velocity and temperature.