Measurement of air aerosol size during the 2001/2002 harmattan season at Uturu, Nigeria.

Abstract

The measurement of air aerosol size during the 2001/2002 harmattan season at Uturu, Nigeria is of interest. Aerosol size distributions were measured making use of a zeiss micrometer which is inserted on the diaphragm inside the eyepiece of Olympus binocular microscope. Dust samples collected by direct deposition within the months of October 2001 to February 2002 on a Whatman filter paper made of cellulose were placed on a glass slide and viewed under a microscope. The mean value of the measured aerosol diameter and the standard deviation is 2.74 ± 1.7μm. The mean of the calculated surface area distribution of the aerosols is 38.33 ± 9.3 square μm.

JONAMP Vol. 11 2007: pp. 635-640