PARTICLE-SIZE DISTRIBUTION OF ATMOSPHERIC AEROSOLS

The presence of aerosols in the air is of great importance to the physics of precipitation and studies of air pollution. Aerosol particles can also influence the weather in several ways. They may act as fog or cloud condensation nuclei in air, and hence modify cloud formation and precipitation development processes. Furthermore, interaction of the aerosol particles with solar radiation may change the temperature of the earth surface. Another noticeable effect is visibility reduction. The properties of aerosol particles are dependent on their size and with their wide range of sizes, certain properties undergo transitions to greater or less dependence on size. The present study is devoted to size distribution measurements of aerosols in the atmosphere at EL-Minia.